— Qualitative and quantitative analysis of selected mycotoxins has been performed in extracts of Conidiobolus coronatus pathogenic fungus cultivated under optimal and stress conditions. Furthermore, the analyses of these compounds in post-incubation filtrates were done. For identification purposes the analytical method allows identification and quantitation of selected mycotoxins including beauvericin , fumonisin B1, enniatin A and B and destruxin A based on high performance liquid chromatography coupled with tandem mass spectrometry was developed. Only beauvericin was detected in very low amounts in C. coronatus mycelium extract cultivated under optimal condition. In the extract of C. coronatus mycelium grown on LB 12.3 ± 0.1 µg/g of beauvericin was determined, while in the extract of C. coronatus mycelium grown on MM medium beauvericin content was lower and amounted 4.6 ± 0.1 µg/g. Also the presence of beauvericin was confirmed in postincubaction filtrate extract (MM). The content of this compound was 2.2 ± 0.1 µg/g. In other extracts beauvericin was not detected. In addition, in the tested extracts other compounds were not detected.
ANTIOXIDANT AND ANTIMICROBIAL ACTIVITIES OF ALGERIAN POPULUS NIGRA L. BUDS EX...bioejjournal
his study is part of a goal to investigate chemical composition, antibacterial, antifungal and antioxidant activities of the flower buds extracts from the Algerian Polulus nigra L., which were collected from Djarifet - mansourah at Tlemcen city in the West Northern of Algeria. In organic extracts, tanins, flavonoïds, coumarins, alkaloids and terpenoïds were the principals secondary metabolites identified from the flower buds of black poplar. Antibacterial and antifungal activities of extracts were tested using agar-well diffusion method and micro-well determination of MIC assay against eleven bacteria and two Candida species. It was found that extracts of black poplar buds exhibit antibacterial and anticandidal activities with agar disk diffusion (7 to 43mm) and MIC methods (MIC= 90.33 µg/ml against several strains of bacteria and MIC=45.16 µg/ml against Candida albicans). The antioxidant effect of hydroalcoholic extract was evaluated using DPPH and FRAP assays. It was showed good and similar activity than ascorbic acid and BHA by DPPH method: IC50= 220µg/mL for hydroethanol extract.
Antioxidant and Antimicrobial Activities Of Algerian Populus Nigra L. Buds Ex...bioejjournal
This study is part of a goal to investigate chemical composition, antibacterial, antifungal and antioxidant activities of the flower buds extracts from the Algerian Polulus nigra L., which were collected from Djarifet - mansourah at Tlemcen city in the West Northern of Algeria. In organic extracts, tanins, flavonoïds, coumarins, alkaloids and terpenoïds were the principals secondary metabolites identified from the flower buds of black poplar. Antibacterial and antifungal activities of
extracts were tested using agar-well diffusion method and micro-well determination of MIC assay against
eleven bacteria and two Candida species. It was found that extracts of black poplar buds exhibit
antibacterial and anticandidal activities with agar disk diffusion (7 to 43mm) and MIC methods (MIC=
90.33 µg/ml against several strains of bacteria and MIC=45.16 µg/ml against Candida albicans). The
antioxidant effect of hydroalcoholic extract was evaluated using DPPH and FRAP assays. It was showed good and similar activity than ascorbic acid and BHA by DPPH method: IC50= 220µg/mL for hydroethanol extract.
Antibacterial Effect of Endophytic Actinomycetes from Marine Algae against Multi Drug Resistant Gram Negative Bacteria by Manoharan N in Examines in Marine Biology & Oceanography
— Qualitative and quantitative analysis of selected mycotoxins has been performed in extracts of Conidiobolus coronatus pathogenic fungus cultivated under optimal and stress conditions. Furthermore, the analyses of these compounds in post-incubation filtrates were done. For identification purposes the analytical method allows identification and quantitation of selected mycotoxins including beauvericin , fumonisin B1, enniatin A and B and destruxin A based on high performance liquid chromatography coupled with tandem mass spectrometry was developed. Only beauvericin was detected in very low amounts in C. coronatus mycelium extract cultivated under optimal condition. In the extract of C. coronatus mycelium grown on LB 12.3 ± 0.1 µg/g of beauvericin was determined, while in the extract of C. coronatus mycelium grown on MM medium beauvericin content was lower and amounted 4.6 ± 0.1 µg/g. Also the presence of beauvericin was confirmed in postincubaction filtrate extract (MM). The content of this compound was 2.2 ± 0.1 µg/g. In other extracts beauvericin was not detected. In addition, in the tested extracts other compounds were not detected.
ANTIOXIDANT AND ANTIMICROBIAL ACTIVITIES OF ALGERIAN POPULUS NIGRA L. BUDS EX...bioejjournal
his study is part of a goal to investigate chemical composition, antibacterial, antifungal and antioxidant activities of the flower buds extracts from the Algerian Polulus nigra L., which were collected from Djarifet - mansourah at Tlemcen city in the West Northern of Algeria. In organic extracts, tanins, flavonoïds, coumarins, alkaloids and terpenoïds were the principals secondary metabolites identified from the flower buds of black poplar. Antibacterial and antifungal activities of extracts were tested using agar-well diffusion method and micro-well determination of MIC assay against eleven bacteria and two Candida species. It was found that extracts of black poplar buds exhibit antibacterial and anticandidal activities with agar disk diffusion (7 to 43mm) and MIC methods (MIC= 90.33 µg/ml against several strains of bacteria and MIC=45.16 µg/ml against Candida albicans). The antioxidant effect of hydroalcoholic extract was evaluated using DPPH and FRAP assays. It was showed good and similar activity than ascorbic acid and BHA by DPPH method: IC50= 220µg/mL for hydroethanol extract.
Antioxidant and Antimicrobial Activities Of Algerian Populus Nigra L. Buds Ex...bioejjournal
This study is part of a goal to investigate chemical composition, antibacterial, antifungal and antioxidant activities of the flower buds extracts from the Algerian Polulus nigra L., which were collected from Djarifet - mansourah at Tlemcen city in the West Northern of Algeria. In organic extracts, tanins, flavonoïds, coumarins, alkaloids and terpenoïds were the principals secondary metabolites identified from the flower buds of black poplar. Antibacterial and antifungal activities of
extracts were tested using agar-well diffusion method and micro-well determination of MIC assay against
eleven bacteria and two Candida species. It was found that extracts of black poplar buds exhibit
antibacterial and anticandidal activities with agar disk diffusion (7 to 43mm) and MIC methods (MIC=
90.33 µg/ml against several strains of bacteria and MIC=45.16 µg/ml against Candida albicans). The
antioxidant effect of hydroalcoholic extract was evaluated using DPPH and FRAP assays. It was showed good and similar activity than ascorbic acid and BHA by DPPH method: IC50= 220µg/mL for hydroethanol extract.
Antibacterial Effect of Endophytic Actinomycetes from Marine Algae against Multi Drug Resistant Gram Negative Bacteria by Manoharan N in Examines in Marine Biology & Oceanography
Mosquitocidal property of leaf extract of bougainvillea spectabilis (Nictagin...researchanimalsciences
Mosquitocidal property of leaf extract of Bougainvillea spectabilis was evaluated for the egg hatchability, larvicidal and pupicidal activity of mosquito, Aedes aegypti under the room temperature in the laboratory. A relationship was observed between the plant extract dose and the percentage of egg hatchability, larval and pupal mortality. Dosage value as expressed in % was 0.01 to 4.0 for Aedes aegypti. The percentage of egg hatchability, larval and pupal mortality were found to increase with the dosage indicating a relationship between the two. Based on the probit analysis the LC50 (mg/l) value of egg (31), I instar (59), II instar (231), III instar (606), IV instar (1578) and pupa (2637) were observed.
Article Citation:
Rajmohan D and Logankumar K.
Mosquitocidal property of leaf extract of Bougainvillea spectabilis (Nictaginaceae) against the growth and development of the mosquito, Aedes aegypti. l.
(Diptera: Culicidae)
Journal of Research in Animal Sciences (2012) 1(1): 028-032.
Full Text:
http://janimalsciences.com/documents/AS0012.pdf
Synergistic effects of 18 flavonoids (11 glycosides and flavones, 01 flavones diglycoside, 04 chalcones and 02 aglycones) in combination with different anti-fungal agents against fungal strains were investigated. The agar diffusion assay of these flavonoids with different anti-fungal agents was tested. The Minimum Inhibitory Concentration (MIC) values of each of the flavonoids with different anti-fungal agents were determined by using checkerboard broth micro dilution assay. Flavones diglycoside (3, 5-dihydroxy flavones 7-O-b-D-glucuronide-4-O-b-D-glucopyranside) potentiated the in vitro and in vivo activity against fungal strains. The flavones diglycoside reduced MIC of amphotericin-B to one half against different fungal strains, Candida albicans, Candida krusei, Candida parapsilosis, Candida tropicalis and Cryptococcus neoformans 1202. Although moderate change between in vitro and in vivo studies have been found, the elucidation of the mechanisms involved in flavonoid action will have many health benefits to man. In conclusion, these findings suggested that flavonoid combination regimens may be considered as an useful candidate for the treatment of fungal infection.
Anthelmintic activity of leaves of different extracts of Gossypium herbaceum ...SriramNagarajan16
The N-hexane, ethyl ether and ethanol extracts of leaves of Gossypium herbaceum L was investigated for
anthelmintic activity using earthworms (Pheretimaposthuma). Various concentrations (10,20,40,60,80 &100
mg/ml) of plant extracts were tested in the bioassay. Albendazole (10 mg/ml) was used as reference standard drug
whereas 1% v/v tween 80 as control. Determination of paralysis time and death time of the worms were recorded.
Theethyl ether and ethanol extracts exhibited significant anthelmintic activity at highest concentration of 60, 80 &
100 mg/ml compared to standard drug. The result shows that ethyl ether extract possesses potent vermicidal
activity and found to be effective as an anthelmintic compared to ethanolic extract
MOLECULAR ANALYSIS OF BACTERIAL GENE CODING CHITINASE ENZYMES, FAMILY 19 STR...IJSIT Editor
Fungal phytopathogens pose serious problems worldwide in the cultivation of economically
important plants.
Chemical fungicides are extensively used in current agriculture.However, excessive use of chemical
fungicides in agriculture has led to deteriorating human health , environmental pollution, damaged to
ecosystem and development of pathogen resistance to fungicide.
Because of the worsening problems in fungal disease control , a serious search is needed to identify
alternative methods for plant protection, which are less dependent on chemicals and are more
environmentally friendly. Microbial antagonists are widely used for the biocontrol of fungal plant diseases.
Many species of actinomycates, particulary those belonging to the genus sterptomyces, are well known as
antifungal biocontrol agents that inhibit several plant pathogenic fungi.
Another way biological control has been developed as an alternative of chemicals to tock with plant
pathogenic fungi. Considering high presence of chitin in fungal cell wall, chitinase enzyme is camped as an
effective biocontrol agent against phytopathogenic fungi. Streptomyces bacteria are able to produce various chitinase enzymes, chitinases produced by streptomyces belong to the families 18 and 19 glycosyl hydrolases.
The antifungal activity is mostly shown by fomily 19 Chitinases. In comparison with bacterial family 18
chitinases, the specific hydrolyzing activity of chitinase 19 against soluble and in soluble chitinous substrates
has been markedly higher. Considering the importance of family to investigate antifungal potential of
streptomyces bacteria isolated from east Azarbijan region soils based on molecular identification of family 19
chitinase. encoding gene in these bacteria.
To aim the purpose 110 soil samples were collected from East Azarbaijan and 310 strepomyces
isolates were selected using macroscopic and microscopic observations. DNA genomic of all of the isolates
were extracted and PCR reactions was done using chitinase 19 designed primers as marker.
Totally isolates were selected with molecular selection and antagonistic test were done. One of the isolates
exhibit the most strong antifungal activity.
The strain was identified using 16srDNA gene, and the chitinase encoding gene were amplified partially to
prove the PCR selection. Finally the bacterium were introduced as potentially biological fertilizer.
CHITINASE AS THE MOST IMPORTANT SECONDARY METABOLITES OF STREPTOMYCES BACTERISIJSIT Editor
Fungal phytopathogens pose serious problems worldwide in the cultivation of economi cally
important plants.
Chemical fungicides are extensively used in current agriculture.However, excessive use of chemical
fungicides in agriculture has led to deteriorating human health , environmental pollution, damaged to
ecosystem and development of pathogen resistance to fungicide.
Because of the worsening problems in fungal disease control , a serious search is needed to identify
alternative methods for plant protection, which are less dependent on chemicals and are more
environmentally friendly. Microbial antagonists are widely used for the biocontrol of fungal plant diseases.
Many species of actinomycates, particulary those belonging to the genus sterptomyces, are well known as
antifungal biocontrol agents that inhibit several plant pathogenic fungi.
Another way biological control has been developed as an alternative of chemicals to tock with plant
pathogenic fungi. Considering high presence of chitin in fungal cell wall, chitinase enzyme is camped as an
effective biocontrol agent against phytopathogenic fungi. Streptomyces bacteria are able to produce various chitinase enzymes, chitinases produced by streptomyces belong to the families 18 and 19 glycosyl hydrolases.
The antifungal activity is mostly shown by fomily 19 Chitinases. In comparison with bacterial family 18
chitinases, the specific hydrolyzing activity of chitinase 19 against soluble and in soluble chitinous substrates
has been markedly higher. Considering the importance of family to investigate antifungal potential of
streptomyces bacteria isolated from east Azarbijan region soils based on molecular identification of family 19
chitinase. encoding gene in these bacteria.
To aim the purpose 110 soil samples were collected from East Azarbaijan and 310 strepomyces
isolates were selected using macroscopic and microscopic observations. DNA genomic of all of the isolates
were extracted and PCR reactions was done using chitinase 19 designed primers as marker.
Totally isolates were selected with molecular selection and antagonistic test were done. One of the isolates
exhibit the most strong antifungal activity.
The strain was identified using 16srDNA gene, and the chitinase encoding gene were amplified partially to
prove the PCR selection. Finally the bacterium were introduced as potentially biological fertilizer.
GC/MS analysis and In-vitro Antioxidant activity of methanol extract of Uloth...IOSRJPBS
The determination of phytochemical constituents, total phenol, flavonoid contents and antioxidant assays of methanol extract of Ulothrix flacca and its main constituent dimethyl sulfone was studied. The mass spectra of the compounds were matched with the NIST library. The GC-MS analysis of methanol extracts of Ulothrix flacca showed sixteen peaks. Of all the sixteen chemical compounds revealed from the GC-MS analysis of Ulothrix flacca, Dimethyl Sulfone (C2H6O2S) (RT-8.9), 4-Bromobenzoic Acid, 2-Chlorophenyl Ester (C13H8BrClO2) (RT-12.642), Tetradecanoic Acid, 10,13-Dimethyl-, Methyl Ester (C17H34O2) (RT-18.669) are the three major components. The methanol extracts of Ulothrix flacca possess phenolic and flavonoid content of (5.74 ± 0.45mg Gallic acid equivalent (GAE)/g Wt, and 12.58 ± 1.52mg quercetin eq/g wt) respectively. Antioxidant activity was determined using 1,1-diphenyl-2-picryl hydrazyl (DPPH) free radical, for evaluating free radicle scavenging activity, ABTS radical cation scavenging activity, Ferric reducing antioxidant power (FRAP) assay, Phosphomolybdenum assay and Metal chelating activity using BHT, Rutin and Quercetin. The highest radicle scavenging activity was shown by dimethyl sulfone (15.156mg/ml), which is higher than the BHT and Rutin. In vitro antioxidant activity of methanolic extract of Ulothrix flacca and Dimethyl sulfone showed an increase with increasing concentration indicating positive association with the total phenolic and flavonoid contents of the extract, which could be considered for future applications in medicine, dietary supplements ,cosmetics or food industries.
MS medium supplemented with different
concentrations of auxins 2,4-dichloro-phenoxyacetic acid (2,4-D),
α-naphthalene acetic acid (NAA) and combination with kinetin
were studied to obtain a suitable protocol of callus initiation of
Trigonella foenum graecum. Callus was induced from hypocotyls
and cotyledons explants which were collected from the seedlings
of the mentioned plant. The explants were cultured in MS
medium supplemented with two auxins 2,4-D and NAA
separately with different concentrations (0.0 as control, 0.1, 0.5,
1.0, 2.0, 3.0, 4.0 and 5.0 mg/l). Concentration of kinetin (0.5 mg/l)
was used in combination with all concentrations of 2, 4-D and
NAA hormones. The callus was successfully induced in all
different concentrations of two mentioned auxins and
combinations of different concentrations of two auxins separately
with (0.5 mg/l) of kinetin. No callus formation was observed in
the absence of plant growth regulators. Hypocotyl explants of
T.foenum- graecum were much better in inducing callus than
cotyledons explants. Combinations of NAA+Kin and 2,4-D+Kin
were found to be more effective for inducing callus from
hypocotyls explants compared to 2,4-D and NAA alone, at the
same time callus induced by 2,4-D using cotyledons explants
gave the best results compared to the other hormone. Among the
different concentrations of auxin and combinations with kinetin
,the highest mean of callusing index from hypocotyls segments
was (3.50±0.15) with 100% 0f callusing in sixth week by 4.0 mg/l
NAA+ 0.5mg/l Kin. In the case of callus induction from
cotyledons segments the highest mean of callusing index
(2.41±0.18) with 100% of callusing in sixth week was observed by
1.0 mg/l 2, 4-D
Phytochemical Studies on Linum Usitatissimum Seeds and the Nanoformulation of...Editor IJCATR
The phytochemical investigation of Linum usitatissimum, family Linaceae, resulted in the separation and
identification of a lignane, 8–5' neolignan 1 (dehydrodiconiferyl alcohol-4-β-D-glucoside), in addition to
identification of many compounds by the GC/MS technique. The antimicrobial activities of hexane, methylene
chloride and butanol fractions were comparable to ampicillin. The activities against E. coli were 29.2%, 37.5%,
and 66.7%, respectively; against S. aureus were 45.4%, 36.4% and 63.6%, respectively, and against C. albicans
were 26.9%, 46.1% and 73.1%, respectively. Antioxidant activity was assessed by ABTS method. It decreased
in the following order: ascorbic acid > butanol fraction > methylene chloride fraction > hexane fraction. The
cytotoxicity against HePG2 was found to be “moderate” for butanol and methylene chloride fractions, and
“weak” for the hexane fraction. The cytotoxicity against MCF-7 was found to be “strong” for butanol fraction,
and “weak” for both hexane and methylene chloride fractions. The lignane-rich subfraction, Lu 3d was
incorporated into pluronic nano-micelles using nanoprecipitation technique through a modified procedure.
The physicochemical characteristics of the developed Lu 3d-loaded nano-micelles such as particle size,
potential and morphology were determined using DLS and HR-TEM. The average diameters of the prepared
plain and Lu 3d-loaded pluronic nano-micelles were found to be 207 ± 12 and 225 ± 18 nm, respectively. The
encapsulation of Lu 3d into nano-sized particles has enhanced their aqueous dissolution and consequently
improved their bioavailability. Nanoformulation of Lu 3d led also to a stable colloidal dispersion with a strong
green color, indicating its homogenous distribution in the aqueous medium at a significantly higher
concentration than that obtained using other solvents.
Optimization of antibiotic activity of composites of ethanolic extracts of fl...Agriculture Journal IJOEAR
The generation of pathogenic microorgannisms is overwhelming the potency, safety and cost of synthetic antibiotics. The study south insight for the use of plant materials to fight microbes and optimized antibiotic activity of pure, binary and ternary blends of ethanol extracts of flower of Mangifera india, Gongronema latifolium leaves, Citrus sinensis peel on Streptococcus aureus using the Simplex Lattice {3,3} mixture experimental design of the response surface methodology (RSM). Fourteen (14) blends of the plants' parts were produced and tested on the S. aureus. Inhibition zones inhibited by the extract blends ranged between 11-19 mm. Blends C and BC exhibited the highest value of 19 mm. Other blends equally exhibited some inhibition effects on the growth of the test microorganism, however, decreasing in values as their proportions in the blends carried. ANOVA on the data revealed that the model of the experiment was significant (p<0.05; R 2 =0.8350), the pure; A, B, C, and the ternary blends, ABC, were significant in the model (p<0.05). Although other blends were n ot statistically significant (p>0.05), the graphic and the equation indicated their positive contributions to the model. The model showed overall mean inhibition zone of 14.11 mm compared to 22.5 mm observed in Levofloxacin on the test organism. The study showed that ethanolic extracts of the plants' parts could provide the basis for engineering and synthesis of potent antibiotics.
Antibacterial Activity of Leaf Methanolic Extract of S. Caryophyllatum (L.) A...iosrjce
S.caryophyllatum (L.) Alston belongs to the family Myrtaceae is an endangered species. It possesses
traditional as well as pharmacological properties. The objective of the present investigation was to find out the
antibacterial activity of S. caryophyllatum leaf methanolic extract against some human pathogenic bacteria. It
was followed by Disc Diffusion method using gram positive and gram negative bacterial strains such as
Staphylococcus aureus, Bacillus cereus, Bacillus subtilis, Bacillus megaterium, Sarcina lutea, Esherichia coli,
Pseudomonas aeruginosa, Klebsiella Spp., Salmonella typhi and Proteus mirabilis. The result showed that the
inhibitory effect on Bacillus subtilis (24mm) was high when compared to E. coli (21mm) and Bacillus cereus
(20mm).This effect on the bacterial strains may be due to the presence of secondary metabolites present in the
leaf methanolic extract of Syzygium caryophyllatum.
Mosquitocidal property of leaf extract of bougainvillea spectabilis (Nictagin...researchanimalsciences
Mosquitocidal property of leaf extract of Bougainvillea spectabilis was evaluated for the egg hatchability, larvicidal and pupicidal activity of mosquito, Aedes aegypti under the room temperature in the laboratory. A relationship was observed between the plant extract dose and the percentage of egg hatchability, larval and pupal mortality. Dosage value as expressed in % was 0.01 to 4.0 for Aedes aegypti. The percentage of egg hatchability, larval and pupal mortality were found to increase with the dosage indicating a relationship between the two. Based on the probit analysis the LC50 (mg/l) value of egg (31), I instar (59), II instar (231), III instar (606), IV instar (1578) and pupa (2637) were observed.
Article Citation:
Rajmohan D and Logankumar K.
Mosquitocidal property of leaf extract of Bougainvillea spectabilis (Nictaginaceae) against the growth and development of the mosquito, Aedes aegypti. l.
(Diptera: Culicidae)
Journal of Research in Animal Sciences (2012) 1(1): 028-032.
Full Text:
http://janimalsciences.com/documents/AS0012.pdf
Synergistic effects of 18 flavonoids (11 glycosides and flavones, 01 flavones diglycoside, 04 chalcones and 02 aglycones) in combination with different anti-fungal agents against fungal strains were investigated. The agar diffusion assay of these flavonoids with different anti-fungal agents was tested. The Minimum Inhibitory Concentration (MIC) values of each of the flavonoids with different anti-fungal agents were determined by using checkerboard broth micro dilution assay. Flavones diglycoside (3, 5-dihydroxy flavones 7-O-b-D-glucuronide-4-O-b-D-glucopyranside) potentiated the in vitro and in vivo activity against fungal strains. The flavones diglycoside reduced MIC of amphotericin-B to one half against different fungal strains, Candida albicans, Candida krusei, Candida parapsilosis, Candida tropicalis and Cryptococcus neoformans 1202. Although moderate change between in vitro and in vivo studies have been found, the elucidation of the mechanisms involved in flavonoid action will have many health benefits to man. In conclusion, these findings suggested that flavonoid combination regimens may be considered as an useful candidate for the treatment of fungal infection.
Anthelmintic activity of leaves of different extracts of Gossypium herbaceum ...SriramNagarajan16
The N-hexane, ethyl ether and ethanol extracts of leaves of Gossypium herbaceum L was investigated for
anthelmintic activity using earthworms (Pheretimaposthuma). Various concentrations (10,20,40,60,80 &100
mg/ml) of plant extracts were tested in the bioassay. Albendazole (10 mg/ml) was used as reference standard drug
whereas 1% v/v tween 80 as control. Determination of paralysis time and death time of the worms were recorded.
Theethyl ether and ethanol extracts exhibited significant anthelmintic activity at highest concentration of 60, 80 &
100 mg/ml compared to standard drug. The result shows that ethyl ether extract possesses potent vermicidal
activity and found to be effective as an anthelmintic compared to ethanolic extract
MOLECULAR ANALYSIS OF BACTERIAL GENE CODING CHITINASE ENZYMES, FAMILY 19 STR...IJSIT Editor
Fungal phytopathogens pose serious problems worldwide in the cultivation of economically
important plants.
Chemical fungicides are extensively used in current agriculture.However, excessive use of chemical
fungicides in agriculture has led to deteriorating human health , environmental pollution, damaged to
ecosystem and development of pathogen resistance to fungicide.
Because of the worsening problems in fungal disease control , a serious search is needed to identify
alternative methods for plant protection, which are less dependent on chemicals and are more
environmentally friendly. Microbial antagonists are widely used for the biocontrol of fungal plant diseases.
Many species of actinomycates, particulary those belonging to the genus sterptomyces, are well known as
antifungal biocontrol agents that inhibit several plant pathogenic fungi.
Another way biological control has been developed as an alternative of chemicals to tock with plant
pathogenic fungi. Considering high presence of chitin in fungal cell wall, chitinase enzyme is camped as an
effective biocontrol agent against phytopathogenic fungi. Streptomyces bacteria are able to produce various chitinase enzymes, chitinases produced by streptomyces belong to the families 18 and 19 glycosyl hydrolases.
The antifungal activity is mostly shown by fomily 19 Chitinases. In comparison with bacterial family 18
chitinases, the specific hydrolyzing activity of chitinase 19 against soluble and in soluble chitinous substrates
has been markedly higher. Considering the importance of family to investigate antifungal potential of
streptomyces bacteria isolated from east Azarbijan region soils based on molecular identification of family 19
chitinase. encoding gene in these bacteria.
To aim the purpose 110 soil samples were collected from East Azarbaijan and 310 strepomyces
isolates were selected using macroscopic and microscopic observations. DNA genomic of all of the isolates
were extracted and PCR reactions was done using chitinase 19 designed primers as marker.
Totally isolates were selected with molecular selection and antagonistic test were done. One of the isolates
exhibit the most strong antifungal activity.
The strain was identified using 16srDNA gene, and the chitinase encoding gene were amplified partially to
prove the PCR selection. Finally the bacterium were introduced as potentially biological fertilizer.
CHITINASE AS THE MOST IMPORTANT SECONDARY METABOLITES OF STREPTOMYCES BACTERISIJSIT Editor
Fungal phytopathogens pose serious problems worldwide in the cultivation of economi cally
important plants.
Chemical fungicides are extensively used in current agriculture.However, excessive use of chemical
fungicides in agriculture has led to deteriorating human health , environmental pollution, damaged to
ecosystem and development of pathogen resistance to fungicide.
Because of the worsening problems in fungal disease control , a serious search is needed to identify
alternative methods for plant protection, which are less dependent on chemicals and are more
environmentally friendly. Microbial antagonists are widely used for the biocontrol of fungal plant diseases.
Many species of actinomycates, particulary those belonging to the genus sterptomyces, are well known as
antifungal biocontrol agents that inhibit several plant pathogenic fungi.
Another way biological control has been developed as an alternative of chemicals to tock with plant
pathogenic fungi. Considering high presence of chitin in fungal cell wall, chitinase enzyme is camped as an
effective biocontrol agent against phytopathogenic fungi. Streptomyces bacteria are able to produce various chitinase enzymes, chitinases produced by streptomyces belong to the families 18 and 19 glycosyl hydrolases.
The antifungal activity is mostly shown by fomily 19 Chitinases. In comparison with bacterial family 18
chitinases, the specific hydrolyzing activity of chitinase 19 against soluble and in soluble chitinous substrates
has been markedly higher. Considering the importance of family to investigate antifungal potential of
streptomyces bacteria isolated from east Azarbijan region soils based on molecular identification of family 19
chitinase. encoding gene in these bacteria.
To aim the purpose 110 soil samples were collected from East Azarbaijan and 310 strepomyces
isolates were selected using macroscopic and microscopic observations. DNA genomic of all of the isolates
were extracted and PCR reactions was done using chitinase 19 designed primers as marker.
Totally isolates were selected with molecular selection and antagonistic test were done. One of the isolates
exhibit the most strong antifungal activity.
The strain was identified using 16srDNA gene, and the chitinase encoding gene were amplified partially to
prove the PCR selection. Finally the bacterium were introduced as potentially biological fertilizer.
GC/MS analysis and In-vitro Antioxidant activity of methanol extract of Uloth...IOSRJPBS
The determination of phytochemical constituents, total phenol, flavonoid contents and antioxidant assays of methanol extract of Ulothrix flacca and its main constituent dimethyl sulfone was studied. The mass spectra of the compounds were matched with the NIST library. The GC-MS analysis of methanol extracts of Ulothrix flacca showed sixteen peaks. Of all the sixteen chemical compounds revealed from the GC-MS analysis of Ulothrix flacca, Dimethyl Sulfone (C2H6O2S) (RT-8.9), 4-Bromobenzoic Acid, 2-Chlorophenyl Ester (C13H8BrClO2) (RT-12.642), Tetradecanoic Acid, 10,13-Dimethyl-, Methyl Ester (C17H34O2) (RT-18.669) are the three major components. The methanol extracts of Ulothrix flacca possess phenolic and flavonoid content of (5.74 ± 0.45mg Gallic acid equivalent (GAE)/g Wt, and 12.58 ± 1.52mg quercetin eq/g wt) respectively. Antioxidant activity was determined using 1,1-diphenyl-2-picryl hydrazyl (DPPH) free radical, for evaluating free radicle scavenging activity, ABTS radical cation scavenging activity, Ferric reducing antioxidant power (FRAP) assay, Phosphomolybdenum assay and Metal chelating activity using BHT, Rutin and Quercetin. The highest radicle scavenging activity was shown by dimethyl sulfone (15.156mg/ml), which is higher than the BHT and Rutin. In vitro antioxidant activity of methanolic extract of Ulothrix flacca and Dimethyl sulfone showed an increase with increasing concentration indicating positive association with the total phenolic and flavonoid contents of the extract, which could be considered for future applications in medicine, dietary supplements ,cosmetics or food industries.
MS medium supplemented with different
concentrations of auxins 2,4-dichloro-phenoxyacetic acid (2,4-D),
α-naphthalene acetic acid (NAA) and combination with kinetin
were studied to obtain a suitable protocol of callus initiation of
Trigonella foenum graecum. Callus was induced from hypocotyls
and cotyledons explants which were collected from the seedlings
of the mentioned plant. The explants were cultured in MS
medium supplemented with two auxins 2,4-D and NAA
separately with different concentrations (0.0 as control, 0.1, 0.5,
1.0, 2.0, 3.0, 4.0 and 5.0 mg/l). Concentration of kinetin (0.5 mg/l)
was used in combination with all concentrations of 2, 4-D and
NAA hormones. The callus was successfully induced in all
different concentrations of two mentioned auxins and
combinations of different concentrations of two auxins separately
with (0.5 mg/l) of kinetin. No callus formation was observed in
the absence of plant growth regulators. Hypocotyl explants of
T.foenum- graecum were much better in inducing callus than
cotyledons explants. Combinations of NAA+Kin and 2,4-D+Kin
were found to be more effective for inducing callus from
hypocotyls explants compared to 2,4-D and NAA alone, at the
same time callus induced by 2,4-D using cotyledons explants
gave the best results compared to the other hormone. Among the
different concentrations of auxin and combinations with kinetin
,the highest mean of callusing index from hypocotyls segments
was (3.50±0.15) with 100% 0f callusing in sixth week by 4.0 mg/l
NAA+ 0.5mg/l Kin. In the case of callus induction from
cotyledons segments the highest mean of callusing index
(2.41±0.18) with 100% of callusing in sixth week was observed by
1.0 mg/l 2, 4-D
Phytochemical Studies on Linum Usitatissimum Seeds and the Nanoformulation of...Editor IJCATR
The phytochemical investigation of Linum usitatissimum, family Linaceae, resulted in the separation and
identification of a lignane, 8–5' neolignan 1 (dehydrodiconiferyl alcohol-4-β-D-glucoside), in addition to
identification of many compounds by the GC/MS technique. The antimicrobial activities of hexane, methylene
chloride and butanol fractions were comparable to ampicillin. The activities against E. coli were 29.2%, 37.5%,
and 66.7%, respectively; against S. aureus were 45.4%, 36.4% and 63.6%, respectively, and against C. albicans
were 26.9%, 46.1% and 73.1%, respectively. Antioxidant activity was assessed by ABTS method. It decreased
in the following order: ascorbic acid > butanol fraction > methylene chloride fraction > hexane fraction. The
cytotoxicity against HePG2 was found to be “moderate” for butanol and methylene chloride fractions, and
“weak” for the hexane fraction. The cytotoxicity against MCF-7 was found to be “strong” for butanol fraction,
and “weak” for both hexane and methylene chloride fractions. The lignane-rich subfraction, Lu 3d was
incorporated into pluronic nano-micelles using nanoprecipitation technique through a modified procedure.
The physicochemical characteristics of the developed Lu 3d-loaded nano-micelles such as particle size,
potential and morphology were determined using DLS and HR-TEM. The average diameters of the prepared
plain and Lu 3d-loaded pluronic nano-micelles were found to be 207 ± 12 and 225 ± 18 nm, respectively. The
encapsulation of Lu 3d into nano-sized particles has enhanced their aqueous dissolution and consequently
improved their bioavailability. Nanoformulation of Lu 3d led also to a stable colloidal dispersion with a strong
green color, indicating its homogenous distribution in the aqueous medium at a significantly higher
concentration than that obtained using other solvents.
Optimization of antibiotic activity of composites of ethanolic extracts of fl...Agriculture Journal IJOEAR
The generation of pathogenic microorgannisms is overwhelming the potency, safety and cost of synthetic antibiotics. The study south insight for the use of plant materials to fight microbes and optimized antibiotic activity of pure, binary and ternary blends of ethanol extracts of flower of Mangifera india, Gongronema latifolium leaves, Citrus sinensis peel on Streptococcus aureus using the Simplex Lattice {3,3} mixture experimental design of the response surface methodology (RSM). Fourteen (14) blends of the plants' parts were produced and tested on the S. aureus. Inhibition zones inhibited by the extract blends ranged between 11-19 mm. Blends C and BC exhibited the highest value of 19 mm. Other blends equally exhibited some inhibition effects on the growth of the test microorganism, however, decreasing in values as their proportions in the blends carried. ANOVA on the data revealed that the model of the experiment was significant (p<0.05; R 2 =0.8350), the pure; A, B, C, and the ternary blends, ABC, were significant in the model (p<0.05). Although other blends were n ot statistically significant (p>0.05), the graphic and the equation indicated their positive contributions to the model. The model showed overall mean inhibition zone of 14.11 mm compared to 22.5 mm observed in Levofloxacin on the test organism. The study showed that ethanolic extracts of the plants' parts could provide the basis for engineering and synthesis of potent antibiotics.
Antibacterial Activity of Leaf Methanolic Extract of S. Caryophyllatum (L.) A...iosrjce
S.caryophyllatum (L.) Alston belongs to the family Myrtaceae is an endangered species. It possesses
traditional as well as pharmacological properties. The objective of the present investigation was to find out the
antibacterial activity of S. caryophyllatum leaf methanolic extract against some human pathogenic bacteria. It
was followed by Disc Diffusion method using gram positive and gram negative bacterial strains such as
Staphylococcus aureus, Bacillus cereus, Bacillus subtilis, Bacillus megaterium, Sarcina lutea, Esherichia coli,
Pseudomonas aeruginosa, Klebsiella Spp., Salmonella typhi and Proteus mirabilis. The result showed that the
inhibitory effect on Bacillus subtilis (24mm) was high when compared to E. coli (21mm) and Bacillus cereus
(20mm).This effect on the bacterial strains may be due to the presence of secondary metabolites present in the
leaf methanolic extract of Syzygium caryophyllatum.
Novel 1,3,4-Thiadiazole Linked Amide Derivatives of Pteridone: Synthesis and ...Ratnakaram Venkata Nadh
Cancer is a second leading cause of death after heart attack, in developing as well as undeveloped
countries. It is caused by unregulated growth and metastasis of the abnormal cancer cells.
Cancer can be cured by radiation, immunotherapy and chemotherapy, among them; chemotherapy is a
good treatment for cancer, in which chemotherapeutic drug is used. The anticancer activity of newly
synthesized compounds (13a-j) was carried out on four different types of human cancer cell lines like
MCF-7 (breast), A549 (lung), Colo-205 (colon) and A2780 (ovarian) by the MTT method, and compared
to etoposide used as a positive control. Among them, compound 13g with electron-withdrawing
(3,5-dinitro) group, exhibited more promising activity in all cell lines (MCF-7 = 0.10±0.076 μM, A549
= 0.17±0.039 μM, Colo-205= 0.13±0.022 μM and A2780 = 0.87±0.027μM). This compound may act
as lead drug in cancer chemotherapy. In future, this compound can be examined for clinical studies.
Biochemical Monitoring of Detoxifying Enzyme Levels in Field Population of Mo...BRNSS Publication Hub
The major cause of resistance mechanism in mosquitoes is the detoxification and degradation of
insecticides by overproduction of various metabolic enzymes. Quantitative metabolic enzyme assays
of carboxylesterases (α and β), mixed function oxidases (MFO), and glutathione S-transferases (GST)
have been commonly used in the detection of insecticide resistance due to its sensitive nature even at low
frequencies. For the present study, larval strains of Culex quinquefasciatus Say and Aedes aegypti (L) were
collected from the Cochin Corporation, Kerala, India, and were assayed to organophosphate temephos
and carbamate propoxur. The resistance ratio of median lethal time for temephos and propoxur from the
field population of C. quinquefasciatus and A. aegypti is higher than the laboratory population. Elevated
levels of α and β esterase enzyme were observed with the ratio of 1.6 and 1.54 for C. quinquefasciatus
and 1.51 and 1.47 for A. aegypti. In Culex mosquitoes, 1.71, and in Aedes, 1.64 fold increase in GST
enzyme level and 1.38 and 1.3 fold increase for the MFO level determined. The study results revealed
the urgent needs of improving the vector control methods by introducing alternative techniques and
strategies against mosquitoes.
ANTIOXIDANT AND ANTIMICROBIAL ACTIVITIES OF ALGERIAN POPULUS NIGRA L. BUDS EX...bioejjournal
This study is part of a goal to investigate chemical composition, antibacterial, antifungal and antioxidant
activities of the flower buds extracts from the Algerian Polulus nigra L., which were collected from Djarifet
- mansourah at Tlemcen city in the West Northern of Algeria.
In organic extracts, tanins, flavonoïds, coumarins, alkaloids and terpenoïds were the principals secondary
metabolites identified from the flower buds of black poplar. Antibacterial and antifungal activities of
extracts were tested using agar-well diffusion method and micro-well determination of MIC assay against
eleven bacteria and two Candida species. It was found that extracts of black poplar buds exhibit
antibacterial and anticandidal activities with agar disk diffusion (7 to 43mm) and MIC methods (MIC=
90.33 μg/ml against several strains of bacteria and MIC=45.16 μg/ml against Candida albicans). The
antioxidant effect of hydroalcoholic extract was evaluated using DPPH and FRAP assays. It was showed
good and similar activity than ascorbic acid and BHA by DPPH method: IC50= 220μg/mL for
hydroethanol extract.
ANTIOXIDANT AND ANTIMICROBIAL ACTIVITIES OF ALGERIAN POPULUS NIGRA L. BUDS EX...bioejjournal
In organic extracts, tanins, flavonoïds, coumarins, alkaloids and terpenoïds were the principals secondary
metabolites identified from the flower buds of black poplar. Antibacterial and antifungal activities of
extracts were tested using agar-well diffusion method and micro-well determination of MIC assay against
eleven bacteria and two Candida species. It was found that extracts of black poplar buds exhibit
antibacterial and anticandidal activities with agar disk diffusion (7 to 43mm) and MIC methods (MIC=
90.33 µg/ml against several strains of bacteria and MIC=45.16 µg/ml against Candida albicans). The
antioxidant effect of hydroalcoholic extract was evaluated using DPPH and FRAP assays. It was showed
good and similar activity than ascorbic acid and BHA by DPPH method: IC50= 220µg/mL for
hydroethanol extract.
ANTIOXIDANT AND ANTIMICROBIAL ACTIVITIES OF ALGERIAN POPULUS NIGRA L. BUDS EX...bioejjournal
This study is part of a goal to investigate chemical composition, antibacterial, antifungal and antioxidant
activities of the flower buds extracts from the Algerian Polulus nigra L., which were collected from Djarifet
- mansourah at Tlemcen city in the West Northern of Algeria.
In organic extracts, tanins, flavonoïds, coumarins, alkaloids and terpenoïds were the principals secondary
metabolites identified from the flower buds of black poplar. Antibacterial and antifungal activities of
extracts were tested using agar-well diffusion method and micro-well determination of MIC assay against
eleven bacteria and two Candida species. It was found that extracts of black poplar buds exhibit
antibacterial and anticandidal activities with agar disk diffusion (7 to 43mm) and MIC methods (MIC=
90.33 µg/ml against several strains of bacteria and MIC=45.16 µg/ml against Candida albicans). The
antioxidant effect of hydroalcoholic extract was evaluated using DPPH and FRAP assays. It was showed
good and similar activity than ascorbic acid and BHA by DPPH method: IC50= 220µg/mL for
hydroethanol extract.
ANTIOXIDANT AND ANTIMICROBIAL ACTIVITIES OF ALGERIAN POPULUS NIGRA L. BUDS EX...bioejjournal
This study is part of a goal to investigate chemical composition, antibacterial, antifungal and antioxidant
activities of the flower buds extracts from the Algerian Polulus nigra L., which were collected from Djarifet
- mansourah at Tlemcen city in the West Northern of Algeria.
In organic extracts, tanins, flavonoïds, coumarins, alkaloids and terpenoïds were the principals secondary
metabolites identified from the flower buds of black poplar. Antibacterial and antifungal activities of
extracts were tested using agar-well diffusion method and micro-well determination of MIC assay against
eleven bacteria and two Candida species. It was found that extracts of black poplar buds exhibit
antibacterial and anticandidal activities with agar disk diffusion (7 to 43mm) and MIC methods (MIC=
90.33 µg/ml against several strains of bacteria and MIC=45.16 µg/ml against Candida albicans). The
antioxidant effect of hydroalcoholic extract was evaluated using DPPH and FRAP assays. It was showed
good and similar activity than ascorbic acid and BHA by DPPH method: IC50= 220µg/mL for
hydroethanol extract.
In vitro controlling of selected human diarrhea causing bacteria by clove ext...Open Access Research Paper
Antibacterial activity of clove extracts (Syzygium aromaticum L.) was proven against five diarrhea causing bacteria. This was further confirmed when compared with commonly used three commercial antibiotics (ciprofloxacin, tetracycline and erythromycin) as a positive control. Significant differences (P<0.0001) were observed in the effect of the antimicrobial agents (clove extracts and antibiotics), and in the sensitivities of the bacterial species (P<0.0001) to the antimicrobial agents. Clove extracts had significant (P<0.001) activity with the acetone extract demonstrating highest activity followed by antibiotics and other extracts against tested bacteria. The zone of inhibition of clove extracts was ranged from 7.33 to 12.00 mm whereas in antibiotics, it was 0.00 to 11.67 mm. Of all the bacteria, Salmonella typhimurium was the most susceptible against all of the extracts as well as concentrations of clove, while low MIC (180 mgml-1) and MBC (680 mgml-1) of the extracts were observed against Shigella dysenteriae. Consequently, clove has a significant antidiarrheal activity and it could be used as an effective antibacterial agent, alternative to the use of antibiotics.
263778731218 Abortion Clinic /Pills In Harare ,sisternakatoto
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Tom Selleck Health: A Comprehensive Look at the Iconic Actor’s Wellness Journeygreendigital
Tom Selleck, an enduring figure in Hollywood. has captivated audiences for decades with his rugged charm, iconic moustache. and memorable roles in television and film. From his breakout role as Thomas Magnum in Magnum P.I. to his current portrayal of Frank Reagan in Blue Bloods. Selleck's career has spanned over 50 years. But beyond his professional achievements. fans have often been curious about Tom Selleck Health. especially as he has aged in the public eye.
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Introduction
Many have been interested in Tom Selleck health. not only because of his enduring presence on screen but also because of the challenges. and lifestyle choices he has faced and made over the years. This article delves into the various aspects of Tom Selleck health. exploring his fitness regimen, diet, mental health. and the challenges he has encountered as he ages. We'll look at how he maintains his well-being. the health issues he has faced, and his approach to ageing .
Early Life and Career
Childhood and Athletic Beginnings
Tom Selleck was born on January 29, 1945, in Detroit, Michigan, and grew up in Sherman Oaks, California. From an early age, he was involved in sports, particularly basketball. which played a significant role in his physical development. His athletic pursuits continued into college. where he attended the University of Southern California (USC) on a basketball scholarship. This early involvement in sports laid a strong foundation for his physical health and disciplined lifestyle.
Transition to Acting
Selleck's transition from an athlete to an actor came with its physical demands. His first significant role in "Magnum P.I." required him to perform various stunts and maintain a fit appearance. This role, which he played from 1980 to 1988. necessitated a rigorous fitness routine to meet the show's demands. setting the stage for his long-term commitment to health and wellness.
Fitness Regimen
Workout Routine
Tom Selleck health and fitness regimen has evolved. adapting to his changing roles and age. During his "Magnum, P.I." days. Selleck's workouts were intense and focused on building and maintaining muscle mass. His routine included weightlifting, cardiovascular exercises. and specific training for the stunts he performed on the show.
Selleck adjusted his fitness routine as he aged to suit his body's needs. Today, his workouts focus on maintaining flexibility, strength, and cardiovascular health. He incorporates low-impact exercises such as swimming, walking, and light weightlifting. This balanced approach helps him stay fit without putting undue strain on his joints and muscles.
Importance of Flexibility and Mobility
In recent years, Selleck has emphasized the importance of flexibility and mobility in his fitness regimen. Understanding the natural decline in muscle mass and joint flexibility with age. he includes stretching and yoga in his routine. These practices help prevent injuries, improve posture, and maintain mobilit
ARTIFICIAL INTELLIGENCE IN HEALTHCARE.pdfAnujkumaranit
Artificial intelligence (AI) refers to the simulation of human intelligence processes by machines, especially computer systems. It encompasses tasks such as learning, reasoning, problem-solving, perception, and language understanding. AI technologies are revolutionizing various fields, from healthcare to finance, by enabling machines to perform tasks that typically require human intelligence.
Prix Galien International 2024 Forum ProgramLevi Shapiro
June 20, 2024, Prix Galien International and Jerusalem Ethics Forum in ROME. Detailed agenda including panels:
- ADVANCES IN CARDIOLOGY: A NEW PARADIGM IS COMING
- WOMEN’S HEALTH: FERTILITY PRESERVATION
- WHAT’S NEW IN THE TREATMENT OF INFECTIOUS,
ONCOLOGICAL AND INFLAMMATORY SKIN DISEASES?
- ARTIFICIAL INTELLIGENCE AND ETHICS
- GENE THERAPY
- BEYOND BORDERS: GLOBAL INITIATIVES FOR DEMOCRATIZING LIFE SCIENCE TECHNOLOGIES AND PROMOTING ACCESS TO HEALTHCARE
- ETHICAL CHALLENGES IN LIFE SCIENCES
- Prix Galien International Awards Ceremony
Flu Vaccine Alert in Bangalore Karnatakaaddon Scans
As flu season approaches, health officials in Bangalore, Karnataka, are urging residents to get their flu vaccinations. The seasonal flu, while common, can lead to severe health complications, particularly for vulnerable populations such as young children, the elderly, and those with underlying health conditions.
Dr. Vidisha Kumari, a leading epidemiologist in Bangalore, emphasizes the importance of getting vaccinated. "The flu vaccine is our best defense against the influenza virus. It not only protects individuals but also helps prevent the spread of the virus in our communities," he says.
This year, the flu season is expected to coincide with a potential increase in other respiratory illnesses. The Karnataka Health Department has launched an awareness campaign highlighting the significance of flu vaccinations. They have set up multiple vaccination centers across Bangalore, making it convenient for residents to receive their shots.
To encourage widespread vaccination, the government is also collaborating with local schools, workplaces, and community centers to facilitate vaccination drives. Special attention is being given to ensuring that the vaccine is accessible to all, including marginalized communities who may have limited access to healthcare.
Residents are reminded that the flu vaccine is safe and effective. Common side effects are mild and may include soreness at the injection site, mild fever, or muscle aches. These side effects are generally short-lived and far less severe than the flu itself.
Healthcare providers are also stressing the importance of continuing COVID-19 precautions. Wearing masks, practicing good hand hygiene, and maintaining social distancing are still crucial, especially in crowded places.
Protect yourself and your loved ones by getting vaccinated. Together, we can help keep Bangalore healthy and safe this flu season. For more information on vaccination centers and schedules, residents can visit the Karnataka Health Department’s official website or follow their social media pages.
Stay informed, stay safe, and get your flu shot today!
NVBDCP.pptx Nation vector borne disease control programSapna Thakur
NVBDCP was launched in 2003-2004 . Vector-Borne Disease: Disease that results from an infection transmitted to humans and other animals by blood-feeding arthropods, such as mosquitoes, ticks, and fleas. Examples of vector-borne diseases include Dengue fever, West Nile Virus, Lyme disease, and malaria.
Ethanol (CH3CH2OH), or beverage alcohol, is a two-carbon alcohol
that is rapidly distributed in the body and brain. Ethanol alters many
neurochemical systems and has rewarding and addictive properties. It
is the oldest recreational drug and likely contributes to more morbidity,
mortality, and public health costs than all illicit drugs combined. The
5th edition of the Diagnostic and Statistical Manual of Mental Disorders
(DSM-5) integrates alcohol abuse and alcohol dependence into a single
disorder called alcohol use disorder (AUD), with mild, moderate,
and severe subclassifications (American Psychiatric Association, 2013).
In the DSM-5, all types of substance abuse and dependence have been
combined into a single substance use disorder (SUD) on a continuum
from mild to severe. A diagnosis of AUD requires that at least two of
the 11 DSM-5 behaviors be present within a 12-month period (mild
AUD: 2–3 criteria; moderate AUD: 4–5 criteria; severe AUD: 6–11 criteria).
The four main behavioral effects of AUD are impaired control over
drinking, negative social consequences, risky use, and altered physiological
effects (tolerance, withdrawal). This chapter presents an overview
of the prevalence and harmful consequences of AUD in the U.S.,
the systemic nature of the disease, neurocircuitry and stages of AUD,
comorbidities, fetal alcohol spectrum disorders, genetic risk factors, and
pharmacotherapies for AUD.
Couples presenting to the infertility clinic- Do they really have infertility...Sujoy Dasgupta
Dr Sujoy Dasgupta presented the study on "Couples presenting to the infertility clinic- Do they really have infertility? – The unexplored stories of non-consummation" in the 13th Congress of the Asia Pacific Initiative on Reproduction (ASPIRE 2024) at Manila on 24 May, 2024.
Knee anatomy and clinical tests 2024.pdfvimalpl1234
This includes all relevant anatomy and clinical tests compiled from standard textbooks, Campbell,netter etc..It is comprehensive and best suited for orthopaedicians and orthopaedic residents.
Bioactive chemical analysis of enterobacter aerogenes and test of its anti fungal and anti-bacterial activity . 2
1. Bioactive Chemical Analysis of Enterobacter aerogenes and
Test of its Anti-fungal and Anti-bacterial Activity
and Determination
Rafid Hadi Hameed1
, Fatima Moeen Abbas2
, Imad Hadi Hameed3
1
Ministry of Public Health, Maysan Health Department, Mesan Governorate, Iraq, 2
Department of Biology,
College of Science for Women, University of Babylon, Hillah City, Iraq, 3
Biomedical Science Department,
University of Babylon, College of Nursing, Hillah city, Iraq
ABSTRACT
Enterobacter is a genus of Gram-negative, rod shaped, facultative anaerobic, and non-spore forming microbes
of family Enterobacteriaceae. Enterobacter aerogenes (E. aerogenes) is well known opportunistic bacteria
emergedasnosocomialpathogeninintensivecareunitpatients.Theobjectivesofourresearchwereanalysisof
the secondary metabolite products and evaluation antimicrobial activity. Twenty seven bioactive compounds
were identified in the methanolic extract of Enterobacter aerogenes. GC-MS analysis of Enterobacter
aerogenes revealed the existence of the Butanoic acid , 3-methyl, 2,6-Lutidine-4-[benzyloxy]-3,5-dichloro,
1-Propaneamine , 3-(methylthio), Butoxyacetic acid, 3-Hydroxy-2-methylthio-3-phenylpropanoic acid,
1-Deoxy-d-arabitol, Benzeneethanamine, 2-Butanamine , (S), Thiazole , 2-amino-5-methyl, Thiophene
, 2,5-bis(1,1-dimethylethoxy), Propanedinitrile , 2-bis(3,3-dimethyl-2-oxobutylthio), Carbamic acid ,
hydroxyl-,ethyl ester, 3-Aminopiperidin-2-one, dl-Cystathionine, Ethanol , 2-(diethylamino)-,N-oxide,
2,4-Heptadien-6-yn-1-ol , (E,E), Xanthine , 1,3-dipropyl-8-[4-[β-[(benzyloxycarbonyla, Isoquinoline
,1-ethyl and Cyclohexanecarboxylic acid , 2-phenylethyl ester. Coriandrum sativum was very highly active
(6.75±0.22) mm. The results of anti-fungal activity produced by Enterobacter aerogenes showed that the
volatile compounds were highly effective to suppress the growth of Candida albicans (5.717±0.18).
Keywords: GC-MS, Secondary metabolites, Anti-fungal, Enterobacter aerogenes.
Corresponding author:
Imad Hadi Hameed
Biomedical Science Department, University of
Babylon, College of Nursing, Hillah city, Iraq; Phone
number: 009647716150716;
E-mail: imad_dna@yahoo.com
INTRODUCTION
Enterobacter, (genus Enterobacter), any of a group
of rod-shaped bacteria of the family Enterobacteriaceae.
Enterobacter are gram-negative bacteria that are
classified as facultative anaerobes, which means that
they are able to thrive in both aerobic and anaerobic
environments 1-3
. Enterobacter species are responsible
for high morbidity and mortality rate in recent years due
to nosocomial infections and other health care settings.
Due to extended resistance of Gram-negative bacteria
against almost all antibiotics, early initiation of drug
therapy is required, nowadays colistin, and polymyxin
antibiotic have been preferred as an alternative drugs
against Gramnegative pathogens 4
. Enterobacter are
ubiquitous in nature; their presence in the intestinal
tracts of animals results in their wide distribution in soil,
water, and sewage. They are also found in plants. In
humans, multiple Enterobacter species are known to act
as opportunistic pathogens (disease-causing organisms),
including E. cloacae, E. aerogenes, E. gergoviae, and
E. agglomerans. Pathogenic Enterobacter can cause
any of a variety of conditions, including eye and skin
infections, meningitis, bacteremia (bacterial blood
infection), pneumonia, and urinary tract infections 5-9
.
Despite several new drug discoveries of broad spectrum
drugs or combination therapies, associated toxicities are
still a serious complication. Nosocomial infections are
DOI Number: 10.5958/0976-5506.2018.00484.9
2. Indian Journal of Public Health Research & Development, May 2018, Vol. 9, No. 5 439
the most frequent type of Enterobacter infections, but
community-acquired infections are sometimes observed
10-16
. Recently, an alternate treatment therapy approach
called biofield healing therapies or therapeutic touch
is reported with effectively inhibiting the growth of
bacterial cultures. The aims of our study were analysis
of the secondary metabolite products and evaluation
antimicrobial activity.
MATERIALS AND METHOD
Detection of secondary metabolites by Gas
chromatography – Mass Spectrum
The mixture was incubated at 4ºC for 10 min and
then shook for 10 min at 130 rpm. Metabolites was
separated from the liquid culture and evaporated to
dryness with a rotary evaporator at 45ºC. The residue
was dissolved in 1 ml methanol, filtered through a 0.2
μm syringe filter, and stored at 4ºC for 24 h before being
used for gas chromatography mass spectrometry 17-23
.
Materials of Plants Collection and Preparation
In this study, the leaves were dried at room
temperature for ten days and when properly dried the
leaves were powdered using clean pestle and mortar, and
the powdered plant was size reduced with a sieve 24-32
.
The fine powder was then packed in airtight container
to avoid the effect of humidity and then stored at room
temperature.
Spectral analysis of bioactive natural chemical
compounds of Enterobacter aerogenes using (GC/
MS)
Analysis was conducted using GC-MS (Agilent 789
A) equipped with a DB-5MS column (30 m×0.25 mm
i.d., 0.25 um film thickness, J&W Scientific, Folsom,
CA). The oven temperature was programmed as for the
previous analysis 33-39
. Helium was used as the carrier
gas at the rate of 1.0 mL/min. Effluent of the GC column
was introduced directly into the source of the MS via a
transfer line (250oC). The components were identified
by comparing their retention times to those of authentic
samples of WILEY MASS SPECTRAL DATA BASE
Library 40-44
.
Determination of antibacterial and antifungal
activity
The studied fungi, Candida albicans, S. cerevisiae,
Fusarium sp., Mucor sp., Penicillium expansum,
Trichoderma viride, and Trichoderma horzianum were
isolated and maintained in potato dextrose agar slants.
Spores were grown in a liquid culture of potato dextrose
broth (PDB) and incubated at 25ºC in a shaker for 16
days at 130 rpm 45-48
. The extraction was performed by
adding 25 ml methanol to 100 ml liquid culture in an
Erlenmeyer flask after the infiltration of the culture.
Methanol was used as solvent control. Amphotericin B
and fluconazole were used as reference antifungal agent.
Data analysis
All the measurements were replicated three times
for each assay and the results are presented as mean ±
SD and mean ± SE.
RESULTS AND DISCUSSION
Gas chromatography and mass spectroscopy
analysis of compounds was carried out in methanolic
extract of Enterobacter aerogenes, shown in Table
1. Peaks were determined to be Butanoic acid ,
3-methyl, 2,6-Lutidine-4-[benzyloxy]-3,5-dichloro,
1-Propaneamine , 3-(methylthio), Butoxyacetic acid,
3-Hydroxy-2-methylthio-3-phenylpropanoic acid,
1-Deoxy-d-arabitol, Benzeneethanamine, 2-Butanamine
, (S), Thiazole , 2-amino-5-methyl, Thiophene ,
2,5-bis(1,1-dimethylethoxy), Propanedinitrile ,
2-bis(3,3-dimethyl-2-oxobutylthio), Carbamic acid,
hydroxyl-,ethyl ester, 3-Aminopiperidin-2-one,
dl-Cystathionine, Ethanol , 2-(diethylamino)-,N-
oxide, 2,4-Heptadien-6-yn-1-ol , (E,E), Xanthine
, 1,3-dipropyl-8-[4-[β-[(benzyloxycarbonyla,
Isoquinoline ,1-ethyl and Cyclohexanecarboxylic
acid , 2-phenylethyl ester. Enterobacter aerogenes
produce many important secondary metabolites with
high biological activities. Based on the significance
of employing bioactive compounds in pharmacy to
produce drugs for the treatment of many diseases, the
purification of compounds produced by Enterobacter
aerogenes can be useful. Maximum zone formation
against Candida albicans (5.717±0.18) mm, Table 2. In
agar well diffusion method the selected medicinal plants
(Rosmarinus oficinalis, Citrullus colocynthis, Althaea
rosea, Coriandrum sativum, Origanum vulgare, Urtica
dioica, Foeniculum vulgare, Ocimum basilicum, Achillea
millefolia, Medicago sativa, Celosia argentea, Apium
graveolens, Brassica rapa, Cichorium endivia, Malva
sylvestris, Citrus sinensis, Ruta graveolens, Thymus
3. 440 Indian Journal of Public Health Research & Development, May 2018, Vol. 9, No. 5
vulgaris, Passiflora caerulea, Glycine max, Brassica oleracea, Olea europaea, Calendula officinalis, Taraxacum
officinale, Borago officinalis, Sambucus nigra, C. morifolium, Equisetum arvense, and Portulaca oleracea) were
effective against Staphylococcus aureus, Table 3. Coriandrum sativum was very highly active (6.75±0.22) mm
against Enterobacter aerogenes.
Table 1. Major chemical compounds identified in methanolic extract of Enterobacter aerogenes.
Molecular WeightRT (min)Phytochemical compound
Serial
No.
102.06807953.396Butanoic acid , 3-methyl-1.
281.037423.6712,6-Lutidine-4-[benzyloxy]-3,5-dichloro2.
105.061223.9801-Propaneamine , 3-(methylthio)-3.
132.0786444.186Butoxyacetic acid4.
212.0507154.4093-Hydroxy-2-methylthio-3-phenylpropanoic acid5.
136.0735594.6951-Deoxy-d-arabitol6.
121.08914955.187Benzeneethanamine7.
73.08914955.3932-Butanamine , (S)-8.
114.02516945.582Thiazole , 2-amino-5-methyl-9.
228.1184016.669Thiophene , 2,5-bis(1,1-dimethylethoxy)-10.
338.112276.766Propanedinitrile , 2-bis(3,3-dimethyl-2-oxobutylthio)11.
105.0425937.115Carbamic acid , hydroxyl-,ethyl ester12.
114.0793137.5443-Aminopiperidin-2-one13.
222.0674287.905dl-Cystathionine14.
133.1102798.620Ethanol , 2-(diethylamino)-,N-oxide15.
108.05751479.0152,4-Heptadien-6-yn-1-ol , (E,E)-16.
619.2754489.456Xanthine , 1,3-dipropyl-8-[4-[β-[(benzyloxycarbonyla17.
157.08914910.674Isoquinoline ,1-ethyl-18.
265.13140910.280N-Benzyloxycarbonyl-dl-norleucine19.
177.01927110.4052-Acetyl-5-chloromethyl-isoxazolidin-3-one20.
178.14699811.0692,5-Dimethyl-3-n-pentylpyrazine21.
170.10552811.5442,5-Piperazinedione , 3-methyl-6-(1-methylethyl)-22.
164.13134911.8592,6-Dimethyl-3-sec-butylpyrazine23.
210.10044212.2083-Methyl-1,4-diazabicyclo[4.3.0]nonan-2,5-dione24.
143.09462812.5113-Pyrrolidin-2-yl-propionic acid25.
232.1463312.683Cyclohexanecarboxylic acid , 2-phenylethyl ester26.
165.07897913.930Tyramine , N-formyl-27.
Table 2. Antifungal activity of Enterobacter aerogenes metabolite products.
Fungi
Antibiotics / Enterobacter aerogenes metabolite products
Enterobacter aerogenes
metabolite products
Amphotericin B Fluconazol
Miconazole
nitrate
Candida albicans 5.717±0.18 3.829±0.12 2.891.±0.11 2.077±0.12
S. cerevisiae 4.002±0.17 2.071±0.11 1.887±0.10 2.896±0.13
Fusarium sp. 4.981±0.17 1.973±0.10 3.000±0.13 2.719±0.11
Mucor sp. 4.741±0.18 1.995±0.12 1.782±0.11 1.007±0.10
Penicillium expansum 4.003±0.15 3.026±0.13 3.004±0.12 2.135±0.12
Trichoderma viride 5.248±0.18 2.005±0.10 2.015±0.11 3.483±0.13
Trichoderma horzianum 3.852±0.13 1.094±0.11 2.001±0.10 3.091±0.13
4. Indian Journal of Public Health Research & Development, May 2018, Vol. 9, No. 5 441
ª The values (average of triplicate) are diameter of zone of inhibition at 100 mg/mL crude extract and 30 μg/mL
of (Amphotericin B; Fluconazol and Miconazole nitrate).
Table 3. Zone of inhibition (mm) of test different bioactive compounds and standard antibiotics of
medicinal plants to Enterobacter aerogenes.
Plant
Inhibition
(mm)
Plant
Inhibition
(mm)
Rosmarinus oficinalis 5.77±0.20 Citrus sinensis 6.02±0.21
Citrullus colocynthis 4.06±0.18 Ruta graveolens 4.00±0.18
Althaea rosea 5.00±0.19 Thymus vulgaris 5.67±0.20
Coriandrum sativum 6.75±0.22 Passiflora caerulea 5.982±0.18
Origanum vulgare 5.83±0.19 Glycine max 5.66±0.19
Urtica dioica 3.95±0.17 Brassica oleracea 4.14±0.18
Foeniculum vulgare 2.96±0.15 Olea europaea 2.73±0.13
Ocimum basilicum 5.03±0.18 Calendula officinalis 5.00±0.19
Achillea millefolia 5.22±0.17 Taraxacum officinale 3.22±0.16
Medicago sativa 2.84±0.16 Borago officinalis 3.58±0.16
Celosia argentea 3.25±0.16 Sambucus nigra 2.92±0.14
Apium graveolens 4.93±0.18 C. morifolium 6.00±0.20
Brassica rapa 5.98±0.20 Equisetum arvense 5.71±0.19
Cichorium endivia 5.68±0.21 Portulaca oleracea 5.86±0.20
Malva sylvestris 6.55±0.21 Control 0.00
CONCLUSION
Twenty seven bioactive chemical constituents
have been identified from methanolic extract of the
Enterobacter aerogenes. Coriandrum sativum was
very highly active. The results of anti-fungal activity
produced by Enterobacter aerogenes showed that the
volatile compounds were highly effective to suppress
the growth of Candida albicans.
Financial Disclosure: There is no financial
disclosure.
Conflict of Interest: None to declare.
Ethical Clearance: These experiments were
carried out in accordance with approved guidelines and
all protocols were approved under the Department of
Biology, College of Science, Hillah city, Iraq.
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