HPLC analysis of caffeine was performed in SHIMADZU LC 20 – AD system, and the caffeine compounds were separated on a
C18 column under isocratic conditions with 40% methanol in water at a flow rate of 1.0 ml/min. Compounds eluting from the
column were detected and the peak areas were compared with those obtained with standards of known concentration. The HPLC
analysis of caffeine degradation by Brevibacterium is done by injecting the sample volume of about 20μl HPLC analysis is done
for the sample at different incubation periods with standard caffeine concentration (Known). The sample is analyzed for every
twelve hours of incubation and peak values are obtained. Caffeine concentration is an important parameter to be checked as
excessive consumption of caffeine leads to many health hazards.
Keywords: , Biodecaffeination, Brevibacterium, HPLC.
COMPARATIVE INVESTIGATION OF FOOD SUPPLEMENTS
CONTAINING ASCORBIC ACID
Danka Obreshkova and Boyka Tsvetkova
Medical University – Sofia, Faculty of Pharmacy, Dept. of Pharmaceutical chemistry
Abstract. A simple, specific, precise and accurate reversed phase liquid chromatographic (RP-LC) method
has been developed for the determination of ascorbic acid in different food additives. The chromatographic
separation was achieved on a LiChrosorb C18, 250 mm x 4.6 mm, 5 μm column at a detector wavelength
of 230 nm and a flow rate of 1.5 ml/min. The mobile phase was composed of acetonitrile and water (60:40
v/v). The retention time of analyte was 3.49 min. The method was validated for the parameters like specificity,
linearity, precision, accuracy, limit of quantitation and limit of detection. The method was found to be
specific as no other peaks of impurities and excipients were observed. The square of correlation coefficient
(R2) was 0.9997 while relative standard deviations were found to be <2.0%. The proposed RP-LC method
can be applied for the routine analysis of commercially available food additives of ascorbic acid.
COMPARATIVE INVESTIGATION OF FOOD SUPPLEMENTS
CONTAINING ASCORBIC ACID
Danka Obreshkova and Boyka Tsvetkova
Medical University – Sofia, Faculty of Pharmacy, Dept. of Pharmaceutical chemistry
Abstract. A simple, specific, precise and accurate reversed phase liquid chromatographic (RP-LC) method
has been developed for the determination of ascorbic acid in different food additives. The chromatographic
separation was achieved on a LiChrosorb C18, 250 mm x 4.6 mm, 5 μm column at a detector wavelength
of 230 nm and a flow rate of 1.5 ml/min. The mobile phase was composed of acetonitrile and water (60:40
v/v). The retention time of analyte was 3.49 min. The method was validated for the parameters like specificity,
linearity, precision, accuracy, limit of quantitation and limit of detection. The method was found to be
specific as no other peaks of impurities and excipients were observed. The square of correlation coefficient
(R2) was 0.9997 while relative standard deviations were found to be <2.0%. The proposed RP-LC method
can be applied for the routine analysis of commercially available food additives of ascorbic acid.
—3-Chloro-1,2-propanediol (3-chloropropanediol) is a well-known food processing contaminant found in a wide range of foods and ingredients and there has been recent concern about the levels of carcinogenic 3-chloropropanediol (3-MCPD) in some soy sauces. This paper reports on the development of an analytical method for the fast determination of 3-MCPD at trace level in commercial soy sauce using novel liquid phase extraction (LPE)/cleanup coupled with microwave-assisted derivatization (MAD) method followed by high performance liquid chromatography-ultraviolet (HPLC-UV) detection. In this method, 3-MCPD was first isolated from soy sauce sample matrix by LPE/cleanup with Extrude NT3 column cartridges and the isolated (eluent) solution was subjected to MAD with acetophenone to form 2-methyl-2-phenyl-4-(chloromethyl)-1,3-dioxolane under microwave irradiation using a specially modified domestic microwave oven, then the derivatizeddioxolane was directly analyzed with a HPLC-UV system. The optimum conditions for MAD such as the ratio of reagents, acidic catalyst, microwave irradiation power and time, as well as the chromatographic conditions were thoroughly investigated. Experimental results indicated that maximum derivatization can be achieved in 10 min under microwave irradiation at 362 watts when compared to 18 hours by conventional refluxing reaction. The proposed method provided a simple and rapid analytical procedure for 3-MCPD analysis in soy sauce with the detection limit of 80 ng mL-1. The relative standard deviations were all below 3.0 % (n = 7). Application was illustrated by the analysis of commercial sauce sample obtained from a local traditional store in central Taiwan.
การวิเคราะห์ฤทธิ์ต้านอนุมูลอิสระที่ระยะต่างกันในกล้วยเล็บมือนาง
Analysis of Antioxidant Activity at Different Stage in Musa (AA group) ‘Kluai Leb Mu Nang’
อดิศร จำรูญ
Determination of vitamin a in the supplied sample.Atai Rabby
Vitamin A is assayed from the biological samples by high performance liquid chromatography(HPLC) method after processing and separation of samples, as the method is specific, accurate and sensitive but it is also widely measured by calorimetrically for the last many years using the maximum intensity of color developed at 620 nm by the method of Carr and price.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
In this slide contains Methods of Detection of Natural, Permitted and Non Permitted Dyes.
Presented by: P.SUDHEER KUMAR (Department of pharmaceutical analysis).
RIPER, anantapur
Extraction of Pectin from Mangifera Indica Linn. Indian Mango Fruit Peelijtsrd
This study extracted pectin from the fruit peels of Mangifera indica Linn. Indian Mango sold in Catarman. The Mango fruit peels pectin has greenish light brown color, sweet dry smell odor and coarse texture. The 0.5 pectin solution has pH of 4, acidic and is soluble in water but insoluble in both hexane and chloroform reagents. Extracted pectin has 280°C to 284°C high melting point and gelling point of 32°C in 10min. The glucose content of extracted pectin is 2 and few from chloride ions. Extracted pectin is comparable in terms of odor, texture, solubility and glucose content to commercial pectin but quit incomparable in color, pH, melting point, gelling point and chloride ion test. Aurelia Jane Jatap | Melinda C. Getalado ""Extraction of Pectin from Mangifera Indica Linn. (Indian Mango) Fruit Peel"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019, URL: https://www.ijtsrd.com/papers/ijtsrd25180.pdf
Paper URL: https://www.ijtsrd.com/engineering/agricultural-engineering/25180/extraction-of-pectin-from-mangifera-indica-linn-indian-mango-fruit-peel/aurelia-jane-jatap
Industrial production of phytoconstituentsArpitSuralkar
Industrial production of phytoconstituents, it is a part of an pharmacy syllabus, in this slide the content of syllabus is given in short and easy language.
Thanks you
Phyto pharmaceutical - TOCOPHEROLS AND TOCOTRIENOLS (Vitamin E )SudhindraKini
Vitamin E (tocopherol) is a naturally occurring antioxidant. Biochemical functions of vitamin E. applications of vitamin E. symptoms of vitamin E deficiency. Global scenario of production and consumption of natural vitamin E and mixed tocopherols
BIOSORPTION OF ZINC (II) IONS FROM AQUEOUS SOLUTION USING BORASSUS FLABELLIFE...EDITOR IJCRCPS
The effective removal of heavy metals from the sugar industry effluent among the most important issue of the many industrialized
countries. Removal Zn2+ from aqueous solution where studied using palm fiber. Batch adsorption was performed as a function of
pH, initial metal ion concentration, equilibrium time and bio-sorbent dose. The optimum pH obtained from results found to be 5.
The maximum contact time for the equilibrium concentration is 180 minutes. The biosorbent dose of 6g. The maximum efficiency of
removal of metal ion by bio-mass is 79 %.The results are fit exactly by both Langmuir and freundlich isotherm model.
Keywords: Biomass; Biosorption; Isotherm; Kinetics; Removal of Zinc.
MICROBIAL STRESS RESPONSE REGULATORY ENZYME AND THEIR PHARMACEUTICAL APPLICATIONEDITOR IJCRCPS
Ability of adaptation according to variable environmental conditions is essential for bacterial surveillance; those don’t have ability to
face the challenge is eliminated. To counter the damaging effect of reactive oxygen species, cells have evolved anti-oxidant
defense systems, whose expression is usually induced by reactive oxygen species and/or oxidants. Bacteria survive in several
kind of environmental stress condition due to alteration in cell membrane and genetic material by fatal enzyme. Other inducers of
the general stress response might also cause transient genetic instability and so promote bacterial adaptation to stressful
environments. Regulatory mechanisms which help bacteria to maintain their balanced and rather constant cellular composition
mostly occur at the genetic level. Many studies clarified the efficacy of stress enzyme as a therapy in the treatment of many
diseases, in addition to their inclusion in cosmetic products to reduce free radical damage to skin.
Keywords: Bacterial response, Environmental stress and regulatory enzyme.
—3-Chloro-1,2-propanediol (3-chloropropanediol) is a well-known food processing contaminant found in a wide range of foods and ingredients and there has been recent concern about the levels of carcinogenic 3-chloropropanediol (3-MCPD) in some soy sauces. This paper reports on the development of an analytical method for the fast determination of 3-MCPD at trace level in commercial soy sauce using novel liquid phase extraction (LPE)/cleanup coupled with microwave-assisted derivatization (MAD) method followed by high performance liquid chromatography-ultraviolet (HPLC-UV) detection. In this method, 3-MCPD was first isolated from soy sauce sample matrix by LPE/cleanup with Extrude NT3 column cartridges and the isolated (eluent) solution was subjected to MAD with acetophenone to form 2-methyl-2-phenyl-4-(chloromethyl)-1,3-dioxolane under microwave irradiation using a specially modified domestic microwave oven, then the derivatizeddioxolane was directly analyzed with a HPLC-UV system. The optimum conditions for MAD such as the ratio of reagents, acidic catalyst, microwave irradiation power and time, as well as the chromatographic conditions were thoroughly investigated. Experimental results indicated that maximum derivatization can be achieved in 10 min under microwave irradiation at 362 watts when compared to 18 hours by conventional refluxing reaction. The proposed method provided a simple and rapid analytical procedure for 3-MCPD analysis in soy sauce with the detection limit of 80 ng mL-1. The relative standard deviations were all below 3.0 % (n = 7). Application was illustrated by the analysis of commercial sauce sample obtained from a local traditional store in central Taiwan.
การวิเคราะห์ฤทธิ์ต้านอนุมูลอิสระที่ระยะต่างกันในกล้วยเล็บมือนาง
Analysis of Antioxidant Activity at Different Stage in Musa (AA group) ‘Kluai Leb Mu Nang’
อดิศร จำรูญ
Determination of vitamin a in the supplied sample.Atai Rabby
Vitamin A is assayed from the biological samples by high performance liquid chromatography(HPLC) method after processing and separation of samples, as the method is specific, accurate and sensitive but it is also widely measured by calorimetrically for the last many years using the maximum intensity of color developed at 620 nm by the method of Carr and price.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
In this slide contains Methods of Detection of Natural, Permitted and Non Permitted Dyes.
Presented by: P.SUDHEER KUMAR (Department of pharmaceutical analysis).
RIPER, anantapur
Extraction of Pectin from Mangifera Indica Linn. Indian Mango Fruit Peelijtsrd
This study extracted pectin from the fruit peels of Mangifera indica Linn. Indian Mango sold in Catarman. The Mango fruit peels pectin has greenish light brown color, sweet dry smell odor and coarse texture. The 0.5 pectin solution has pH of 4, acidic and is soluble in water but insoluble in both hexane and chloroform reagents. Extracted pectin has 280°C to 284°C high melting point and gelling point of 32°C in 10min. The glucose content of extracted pectin is 2 and few from chloride ions. Extracted pectin is comparable in terms of odor, texture, solubility and glucose content to commercial pectin but quit incomparable in color, pH, melting point, gelling point and chloride ion test. Aurelia Jane Jatap | Melinda C. Getalado ""Extraction of Pectin from Mangifera Indica Linn. (Indian Mango) Fruit Peel"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019, URL: https://www.ijtsrd.com/papers/ijtsrd25180.pdf
Paper URL: https://www.ijtsrd.com/engineering/agricultural-engineering/25180/extraction-of-pectin-from-mangifera-indica-linn-indian-mango-fruit-peel/aurelia-jane-jatap
Industrial production of phytoconstituentsArpitSuralkar
Industrial production of phytoconstituents, it is a part of an pharmacy syllabus, in this slide the content of syllabus is given in short and easy language.
Thanks you
Phyto pharmaceutical - TOCOPHEROLS AND TOCOTRIENOLS (Vitamin E )SudhindraKini
Vitamin E (tocopherol) is a naturally occurring antioxidant. Biochemical functions of vitamin E. applications of vitamin E. symptoms of vitamin E deficiency. Global scenario of production and consumption of natural vitamin E and mixed tocopherols
BIOSORPTION OF ZINC (II) IONS FROM AQUEOUS SOLUTION USING BORASSUS FLABELLIFE...EDITOR IJCRCPS
The effective removal of heavy metals from the sugar industry effluent among the most important issue of the many industrialized
countries. Removal Zn2+ from aqueous solution where studied using palm fiber. Batch adsorption was performed as a function of
pH, initial metal ion concentration, equilibrium time and bio-sorbent dose. The optimum pH obtained from results found to be 5.
The maximum contact time for the equilibrium concentration is 180 minutes. The biosorbent dose of 6g. The maximum efficiency of
removal of metal ion by bio-mass is 79 %.The results are fit exactly by both Langmuir and freundlich isotherm model.
Keywords: Biomass; Biosorption; Isotherm; Kinetics; Removal of Zinc.
MICROBIAL STRESS RESPONSE REGULATORY ENZYME AND THEIR PHARMACEUTICAL APPLICATIONEDITOR IJCRCPS
Ability of adaptation according to variable environmental conditions is essential for bacterial surveillance; those don’t have ability to
face the challenge is eliminated. To counter the damaging effect of reactive oxygen species, cells have evolved anti-oxidant
defense systems, whose expression is usually induced by reactive oxygen species and/or oxidants. Bacteria survive in several
kind of environmental stress condition due to alteration in cell membrane and genetic material by fatal enzyme. Other inducers of
the general stress response might also cause transient genetic instability and so promote bacterial adaptation to stressful
environments. Regulatory mechanisms which help bacteria to maintain their balanced and rather constant cellular composition
mostly occur at the genetic level. Many studies clarified the efficacy of stress enzyme as a therapy in the treatment of many
diseases, in addition to their inclusion in cosmetic products to reduce free radical damage to skin.
Keywords: Bacterial response, Environmental stress and regulatory enzyme.
SYNTHESIS AND CHARACTERIZATION OF SOME TRANSITION METAL COMPLEXES WITH A NEW ...EDITOR IJCRCPS
A new monodentate phosphorus yield Ph3P=CHC(O)C6H4-m-Br (L),was synthesized and characterized with elemental analysis as
well as various spectroscopic techniques. The reactions of the title ylide with mercury(II) halides in equimolar ratios using dry
methanol as solvent have yielded [L.HgX2]2 (X= Cl (1), Br (2), I (3)). The reaction of 1 equiv. this ylide with Cd(NO3)2.4H2O in the
same solvent give a polynuclear complex [Cd (L)(NO3)(μ-NO3)]n (4), followed by treatment with 2 equiv. AgNO3 and AgOTf led to
monomeric chelate complexes 5 and 6, respectively. Characterization of the obtained compounds was also performed by
elemental analysis, IR, 1H, 31P and 13C NMR. All DMSO-solved synthesized compounds were subjected to biological evaluation for
their antibacterial against 6 Gram positive and negative bacteria effects by disc diffusion method. Results showed antibacterial
activity for studied metal complexes and suggested their possible application as antibacterial agents.
Keywords: Phosphorus yields, mercury(II) complexes, silver(I) complexes, cadmium(II) complexes, antibacterial activity.
A STUDY ON FORMATION OF SALYCILIC ACID FORMALDEHYDE POLYMER SAMPLEEDITOR IJCRCPS
Condensation of salicylic acid (0.02 mole) with formaldehyde (0.016 mole) in presence of aqueous 40% H2SO4.
Keywords: pipette,thermometer,spectro-photometer,conicalflakk,waterbath.
RAPID IODINATION OF THE ISOMERS OF AMINOBENZOIC ACID IN AQUEOUS MEDIUM BY IOD...EDITOR IJCRCPS
The rapid kinetics of the iodination of para-aminobenzoic acid and meta-aminobenzoic acid by iodine monochloride at 4.5 pH has
been studied by employing hydrodynamic voltammetry. The reactions were found to be of the second order and the specific
reaction rates for the two reactions were found to be 25 M-1s-1 and 10 M-1s-1 at 25.00C respectively. These data were
complemented with those for the iodination of ortho-aminobenzoic acid by ICl obtained earlier to quantitatively assess the relative
reactivity of the three isomers stemming from substituent regiospecificity.
Keywords: Iodine monochloride, hydrodynamic voltammetry, aminobenzoic acid isomers.
Theoretical Studies on Mechanism of Xanthine Oxidase and 6-mercaptopurineEDITOR IJCRCPS
The reaction mechanisms of 6-mercaptopurine or hypoxanthine have not been investigated either
theoretically or experimentally. Understanding of the overall mechanism helps to manage the
metabolic properties of potential drug molecules metabolized by XOR. The present theoretical
study is aimed to predict transition state structure, the path of electron transfer and probe plausible
mechanistic route for hydroxylation of 6-mercaptopurine or hypoxanthine and XO by relating the
electronic structure to reactivity. The transition state structure was predicted by linear transit
calculation of series of structures by performing frequency calculation which was confirmed by one
imaginary negative frequency value. The path of coupled electron proton transfer mechanism
proved from Mullikan charge analysis and mechanism of oxidation was proved from geometry
optimization. Density functional theory (DFT)/B3LYP method were used to probe the electronic
structure of metastable structure. Result showed that in transition state structures the energy barrier
for 6-mercaptopurine bound active site was lower than hypoxanthine bound active site by
20kcal/mol in average. The ionocity data revealed the presence of substantial negative charge on
proton which suggests the transfer of hydride from substrate to the active site. Bond length analysis
showed that in the transition stases CRH-Oeq bond length was nearly 98% formed where as the CRHHRH
bond length was only 36.78% broken. Geometry optimization revealed that oxidation of 6-
mercaptopurine or hypoxanthine by XO follow stepwise mechanism. It can be generalized that the
oxidation of 6-mercaptopurine or hypoxanthine by XO follows two step mechanisms namely:
abstraction of proton by Glu1226 from equatorial hydroxide of active site followed by nucleophilic
attach on C2 of substrate and hydride was transferred through concomitant release of oxidized
substrate.
CRYSTALLOGRAPHIC AND MORPHOLOGICAL STUDY OF SODIUM ZIRCONIUM PHOSPHATE AS A H...EDITOR IJCRCPS
Sodium zirconium phosphate (NZP) is a potential material for immobilization of nuclear effluents. The Structure of polycrystalline
phase of barium containing NZP was determined on the basis of crystal data of solid state simulated waste forms. The crystal
structure of Na1-xBax/2Zr2P3O12 (x=0.1-1.0) has been investigated using General Structure Analysis System (GSAS) programming.
The BaNZP phase crystallizes in the space group R-3c and Z=6. Powder diffraction data have been subjected to Rietveld
refinement to arrive at a satisfactory structural convergence of R-factors. The unit cell volume and polyhedral (ZrO6 and PO4)
distortion increases with rise in the mole % of Ba2+ in the NZP matrix. SEM, TEM and EDX analysis provide analytical evidence of
barium in the matrix.
Keywords: Ceramic; powder XRD; Rietveld refinement; SEM; nuclear waste immobilization.
EFFECTS OF IMMUNACE AND IRON DEXTRAN ON ANEMIA AND IMMUNOSUPPRESSION OF T. BR...EDITOR IJCRCPS
Trypanosomosis has been associated with immunosuppression, anemia and oxidative damage while ImmuneAce and Iron Dextran
possess both immunostimulatory, antioxidative and erythrocytes enrichment effects. This study was designed to assess the effect
ofImmunace, Iron Dextran, Diminazene Aceturate and a combination of Immunace and Iron Dextran on T. brucei experimentally
infected rats to check packed cell volume (PCV) and parasitemiam. . Thirty rats, divided into six groups (A-F) of 5 each period and
were infected with Trypanosoma brucei 3 days post infection.They were treated as follows:3, 6, 9, 12 and 15 days post treatment
with 0.02gml-1 immunace, 0.2ml of Iron Dextran, 3.5mg Kg-1 of Diminazene Aceturate and a combination therapy of Iron Dextran
and Immuneace. Haematological parametres were significantly (p<0.05) higher in all infected and treated groups compared to
group E. Hence, overall anti-oxidants capacity mitigated the negative effects observed in the measured parametres in rats better
than single administration..
Keywords: African Trypanosomiasis, parasitemia, trace metals, Anaemia, Iron Dextran and Immunosuppression.
PREPARATION AND UTILIZATION OF EMULSIFIERS IN SWEET BISCUITSEDITOR IJCRCPS
Emulsifiers have been prepared by blending soymilk , skim milk powder and baby food with combination of lecithin and glycerol
mono-stearate along with sorbitol, sodium benzoate and water. Analysis of emulsifiers have been carried out for pH, moisture
content, total solids content, acetone insoluble content, acid value, viscosity and percent stability. Samples of biscuits were
formulated varying the amount of emulsifier with constant amounts of whole wheat flour, hydrogenated fat, sugar, sodium
bicarbonate, ammonium bicarbonate, skim milk powder and strawberry. The biscuits were analyzed for carbohydrate content,
protein content, fat content, ash content and moisture content along with standard biscuits. Sensory evaluation of biscuits was
carried out by 9 point Hedonic scale score-card method taking into account attributes such as texture, taste, flavor and overall
quality. It was observed that good quality biscuits could be prepared from the prepared emulsifiers. It is suggested that the
emulsifiers prepared may be useful for other bakery products such as cake, cookies, bread etc.,
Keywords: Emulsifiers,biscuits, proximate composition, sensory evaluation.
SYNTHESIS OF SALICYLIC ACID –FORMALDEHYDE POLYMERSEDITOR IJCRCPS
Abstract Details of only typical methods are furnished. In other cases only the amount of the reactants used is given. Condensation
of salicylic acid (0.02 Mole) with formaldehyde (0.016 Mole) in presence of aqueous 40% H2SO4.
Keywords: Water bath, Thermometer, Spectrophotometer, Condensation.
External agents like carcinogens, pollutants, ionizing radiations produce oxidative stress in living cells generating reactive oxygen
species [ROS]. Cells have built in defense against these reactive species and keep a balance between generated ROS and their
neutralization by endogenous antioxidants [AO]. In addition, many antioxidants present in our diets react with the ROS and make
them inactive. The maintenance of balance is a continuous process inside cells to keep them functioning normally. When
generation of ROS exceeds the level of endogenous and externally added AOs , cells are driven to pathogenic state leading to
diseases. A variety of dietary AOs are available from various sources of fruits and vegetables. This paper aims to review the
molecular mechanisms of oxidative stress, generation and reactions of ROS with vital molecules such as DNA, Protein and
membrane and involvement of ROS in the induction of cancer and other diseases. An attempt is made to suggest ways to reduce
cancer incidence risks , need to modify dietary foods by consuming vegetables, fruits for chemo prevention. An example has been
given to emphasize the role of curcumin as an antioxidant in the mechanism of chemoprevention.
Keywords: Oxidative stress, Carcinogens, ROS, Antioxidants, Chemoprevention.
Вага наукової продуктивності університету в провідних світових рейтингах NaUKMA Library
Про вагу наукової продуктивності університету в провідних світових рейтингах Academic Ranking of World Universities (ARWU), Times Higher Education (THE), QS World University Rankings та U-Multirank.
Користування бібліотекою та довідково-бібліографічним апаратом : Електронний ...NaUKMA Library
Презентація про особливості використання електронного каталогу Наукової бібліотек НаУКМА на основі ІБС ALEPH500 для інформаційно-бібліографічного пошуку.
Evaluation of the Glucuronic Acid Production and Other Biological Activities...IJMER
The interactions between lactic acid bacteria (LAB) and acetic acid bacteria (AAB) from
Kefir and Kombucha (KBC) have been concerned during the last decade since their positive stimulation
on growth rate, biomass, and secondary metabolites. However, more study needs to be conducted to
ascertain whether those enhancement can bring out actual benefits for human consumption. In this
study, evaluation of three main healthy properties of KBC, which were glucuronic acid (GlcUA)
concentration, antibacterial and antioxidant activities and under co-culture of LAB from Kefir is our
main target. The combination of high-performance liquid chromatography (HPLC) and mass
spectrophotometer (MS) detector was used to determine the GlcUA concentration. The agar-well
diffusion method was used to test the antibacterial activities against three serious food borne
pathogenic bacteria which were Escherichia coli ATCC 8739, Salmonella typhimurium ATCC 14028;
Bacillus cereus ATCC 11778. 1, 1-Diphenyl-2picrylhydrazyl (DPPH) was applied to measure the
radicals scavenging activity of KBC. The result shows that Lactobacillus casei can improve the GlcUA
up to 39.6% while Lactobacillus platarum can enhance the antibacterial and antioxidant activities as a
higher level comparing to the normal fermented tea and mixed culture with other LAB strains.
Improved Sugar Yield for Bioethanol Production by Modelling Enzymatic Hydroly...theijes
Alternative lignocellulosic substrates to produce high value-added products such as biofuel have been attractive. A Box-Behnken design was used to evaluate the effects of three parameters namely L/S ratio (50_ 100 mL/g), cellulase concentration (10_ 60 U/g) and incubation time (4_ 44h), on the enzymatic hydrolysis yield of physically pretreated Peganum harmala leaves. The fitted mathematical model allowed us to plot response surfaces as well as isoresponse curves and to determine optimal saccharification conditions. Statistical results indicated that the hydrolysis time and the enzyme concentration were the main factors influencing the release of reducing sugars. The selected optimal saccharification conditions were: L/S ratio of 75.0 mL/g, enzyme concentration of 35.0 U/g, and reaction time of 44.0h. These conditions allowed 39.6% of enzymatic hydrolysis yield versus 37.8±2.9%, respectively for the predicted values. The saccharification efficiency using enzyme treated biomass under optimized conditions was about 20-fold higher than before optimization. Fermentation of optimized cellulosic hydrolysate containing 12.6% glucose was performed using Saccharomyces cerevisiae yielded 4.75% ethanol production within 48h. These results showed a promising future of applying Peganum harmala leaves as potential lignocellulosic biomass for second generation bioethanol production.
Similar to BIO DECAFFEINATION-A STUDY ON THE EFFECTS OF BREVIBACTERIUM ON DIFFERENT SAMPLES OF COFFEE, TEA AND COLA CONTAINING CAFFEINE (20)
IJCRMS JOURNAL - CALL FOR PAPERS - DECEMBER 2020EDITOR IJCRCPS
International Journal of Current Research in Medical Sciences
ISSN:2454-716
www.ijcrims.com
E-mail:editorijcrms@gmail.com
Impact Factor: 4.105 (2020)
Index Copernicus Value: 80.68
DOI: 10.22192/ijcrms (USA)
CODEN: IJCRPP(USA)
IJAMR JOURNAL -CALL FOR PAPERS - DECEMBER -2020EDITOR IJCRCPS
International Journal of Advanced Multidisciplinary Research
www.ijarm.com
E-mail: editorijarm@gmail.com
ISSN: 2393-8870
Impact Factor: 4.012(2020)
Index Copernicus Value: 80.43
DOI :10.22192/ijamr(Crossref, USA)
Thomson Reuters Researcher ID
An open access scholarly, peer-reviewed, and fully refereed journal
International Journal of Advanced Research in Biological Sciences
ISSN: 2348-8069
www.ijarbs.com
E-mail: editorijarbs@gmail.com
Impact Factor: 6.433
NAAS Score: 3.33 (2020) JLr ID: I147
DOI: 10.22192/ijarbs (Crossref, USA)
Index Copernicus Value: 83.08
Coden: IJARQG (USA)
Thomson Reuters ResearcherID: A-4628-2017
International Accreditation and Research Council (USA) - Approved
Knowledge and awareness of tobacco related health problems: A study from East...EDITOR IJCRCPS
Three million people die every year because of tobacco-related diseases in the world. The present
study was carried out to find out the association between Knowledge and awareness towards tobacco
consumption and to find out association between awareness towards tobacco consumption and
diseases in the last one year among residents of Dhankuta Municipality. The cross-sectional study was
conducted among residents of Dhankuta Municipality where 205 households were taken as subjects.
Pretested semi-structured questionnaire was administered to the study subjects and face to face
interview was conducted. Chi-square test was applied to find out the association between Knowledge
and awareness towards tobacco consumption and association between awareness towards tobacco
consumption and diseases in the last one year among residents of Dhankuta Municipality. The
respondents those thinking that tobacco is injurious to health were significantly more aware (46.9%)
than those not thinking (26.7%) (P<0.05). The respondents those thinking that tobacco can cause oral
problems (51.7%) and respiratory problems (48%) were more aware but the difference were not
significant. The respondent suffered from diseases was high who was not aware of tobacco
consumption (18.2%). The respondent suffered from respiratory problems (12.5%) and oral problems
(10%) was high among those not aware of tobacco consumption but the difference was not significant.
We conclude that people those thinking that tobacco is injurious to health were significantly more
aware. The people who were not aware of tobacco consumption suffered more from diseases but the
difference was not significant.
COMPARISON OF SERUM LEVELS OF ZINC AND LEPTIN IN FEMALE ENDURANCE AND SPRINTI...EDITOR IJCRCPS
Abstract in consideration of leptin effects such as reducing food intake and increasing energy consumption, many researchers
have sought to examine the relation between leptin and exercise. The presence of reports arguing that zinc can be a mediator in
leptin production indicates a possible relation between zinc and leptin. The purpose of this study was to compare plasma leptin,
plasma zinc, and their relationship in Elite female endurance and sprinting runner(n=15) with non-athletes(n=15).Blood samples
were obtained 24 h after training to measure plasma zinc and leptin levels. In the present study, we did not observe any significant
difference for plasma zinc and leptin levels between groups(p >0.05). There was not significant correlation between plasma leptin
and plasma zinc in the study groups.
Keywords: Leptin, Zinc, Athletes.
STUDIES ON TREATMENT OF PHARMACEUTICAL WASTE EFFLUENTS BY POLYMER MATERIALS M...EDITOR IJCRCPS
In the present study, sorption technique was used to achieve the optimum recovery of the pharmaceutical waste from effluents.
The modified urea formaldehyde resin was prepared and mixed with inorganic adsorbent at various proportions. The removal
capabilities of pharmaceutical waste by the prepared composite materials were investigated. Different factors affecting the uptake
such as contact time, pH value and aqueous volume to resin weight ratio have been investigated. The reaction mechanisms and
the optimum conditions for the treatment were deduced in the light of the obtained results.
Keywords: Sorption technique, Pharmaceutical waste, Different factors.
THE EFFECT OF WATER TREATMENT ON CALCIUM AND BERYLLIUM LEVELS OF WATER IN KAR...EDITOR IJCRCPS
Introduction: Water quality is an important issue for human health management.The aim of this research was to compare calcium
and beryllium levels in the water of Karun river at the influent stream of the water treatment plant number two (WTP2) in Ahvaz city
and Byblus and Anahita companies and their outlet water after the water treatment process. Materials and Methods: Fourteen
samples of Karun river water at the inlet of AhvazWTP2and Byblus and Anahita companies and their outlet water after the water
treatment process were collected during five months (September2013, and January - April 2014). Samples were taken fourteen
times, each time; five, one liter samples were collected. The samples were then mix and one liter composite sample was isolated
and transported to laboratory. The collected samples were filtered through filter paper (0.45 μm). For their fixation and pro tection
by nitric acid the pH adjusted ≤2 and was analyzed by ICP-MS. Results: it was shown that average of Calcium in water at the inlet
of AhvazWTP2and Byblus and Anahita companies and their outlet water after the water treatment process were 164.714, 94.571,
111.714, 54.485, 124.571, and 17.528 μg/l ,respectively. Also, average of Beryllium in water at the inlet of AhvazWTP2and Byblus
and Anahita companies and their outlet water after the water treatment process were 15.142, 5.714, 8.714, 2.571, 9.428 and 2.285
μg/l, respectively. Conclusion: The results showed that the purification process causes reduction in content of metals in waters
Keywords: Karun River, beryllium, calcium, water treatment process, ICP-MS.
COMPARATIVE STUDY OF THE ANTIFUNGAL EFFECT OF OILS AND THEIR UNSAPONIFIABLE F...EDITOR IJCRCPS
The main objective of the study was to assess the in vitro antifungal potency of the unsaponifiable fraction extracted
from coat and bark seeds oils of Citrullus colocynthis L against pathogenic fungal strains namely Aspergillus flavus,
Aspergillus ochraceus, Penicillium expansum and Fusarium oxysporum. In terms of the physico-chemical
characterization, oils under study showed evidence of quality standards relating to vegetable oils. Unsaponifiable
matter yield recorded was approximately 0.93% and 1.03%, for the seed coat oil and bark seed oil respectively.
Antifungal activity carried out by radial growth on solid medium (Potatoes Dextrose Agar acidified) revealed that the
oils and the corresponding unsaponifiable fractions exhibited complete inhibition of fungal growth. Maximal antifungal
index inhibition (IAF=100%) were recorded at 5% and 2.5% dilutions of each fraction tested. The results provided
evidence that the unsaponifiable oils fractions might indeed be potential sources of natural antifungal agents and
deserve further studies to characterize the biological compounds included in these fractions.
Keywords: Citrullus colocynthis seeds, seed coat, bark, oils, unsaponifiable fraction, antifungal activity.
RESPONSE OF SALMONELLA TYPHI AND SALMONELLA PARATYPHI TO A NEW EFFERVESCENT C...EDITOR IJCRCPS
Typhoid is an epidemic disease in Sudan and causes morbidty for many people especially in tropical countries. Ciprofloxacin
hydrochloride tablets were the drugs of choice for the disease treatment used as alternative to chloramphincol. The present
research work aimed to study the response of Salmonella typhi and Salmonella paratyphi to a newly formulated effervescent
ciprofloxacin hydrochloride tablets as compared to five conventional ciprofloxacin marketed brands. Microbiological sensitivity tests
were carried out against Salmonella typhi and Salmonella paratyphi to detect the response of each drug. Comparison was held
between the drug formulations. The results showed that the response of Salmonella typhi to both drugs is less than that to
Salmonella paratyphi. This may be due to a genetic factor found in Salmonella typhi, in producing more polysaccharide as
compared to Salmonella paratyphi. Interestingly, the present research study revealed that the inhibition zones of the newly
formulated effervescent tablets are greater than those of conventional tablets. This may be an indication for more activity and
quicker response or action of the newly formulated drug.
Keywords: Salmonella typhi, Salmonella paratyphi, effervescent ciprofloxacin HCl tablets, conventional tablet brands,
microbiological sensitivity response, treatment activity response.
THE EFFECT OF WATER TREATMENT ON SELENIUM AND VANADIUM LEVELS OF WATER IN KAR...EDITOR IJCRCPS
Introduction: Due to the increase in world population and increased demand for safe drinking water, using of bottled water,
especially in areas with a shortage of safe drinking water is common. The aim of this research was to compare Selenium and
Vanadium levels in the water of Karun river at the influent stream of the water treatment plant number 2 (WTP2) and its outlet
water after the water treatment process and waters of inlet and outlet of Byblus factory and Anahita factory in Ahvaz city. Materials
and Methods: Fourteen samples of Karun river water at the inlet of Ahvaz WTP2 and its outlet water after the water treatment
process and waters of inlet and outlet of Byblus factory and Anahita factory were collected during five months (September 2013,
and January - April 2014). Samples were taken fourteen times, each time; five, one - liter samples were collected. The samples
were mixed and one liter composite sample was isolated and transported to laboratory. The collected samples were filtered
through filter paper (0.45 μm). For their fixation and protection, nitric acid was added and the pH was adjusted at≤2. All samples
were analyzed by ICP-MS. Results & Discussion: According to the results, the highest and lowest mean concentration of
Vanadium 14.22 and 6.17 ppb in Water inlet the water treatment plant NO (2) of Ahvaz and water at outlet from Anahita factory.
The mean concentration of selenium because of the lower limit (0.1 ppb) was not measured with ICP-MS. Conclusion: The results
showed that the purification process causes reduction in content of metals in water.
Keywords: Karun River, Selenium, Vanadium, Water Treatment Plant, ICP-MS.
REMOVAL PARAQUAT FROM AQUEOUS SOLUTIONS WITH ZEOLITE NANOPARTICLES OPTIMIZED ...EDITOR IJCRCPS
Nowadays, much attention for using chemicals as adsorbent for removal herbicide from aqueous solution has been aroused.
Zeolite as low-cost adsorbent was used in this paper for removal paraquat from water. Iran has a variety resources of zeolite.
Zeolite was collected from Semnan region and after modification, zeolite nano-particles was used for adsorption. Box-Behnken
experimental design was used for simplifying and optimizing the experiment condition. Three factor was studied in this paper; pH
(6-8), temperature (25-45◦C) and the amount of adsorbent (0.5-2 g). The residue of paraquat after each experiment was
determined by injection of 250 μl of each sample to HPLC equipped with column (150mm×4.6mm, ODS (C18)-H-OL), UV-detector
at 258 nm. The mobile phase composition was a mixture of tetramethylammonium hydroxide pentahydrate and ammonium
sulphate in ultra-pure water and adjusted to pH 2 with sulphuric acid. According to BBD the optimum condition was pH 6,
temperature 45◦C and 2 g of adsorbent. At this condition the removal efficiency was about 80%. The results of this study showed
thatby increasing the pH, the percentage of removal was decreased. However, the higher temperatureslead to more removal
capacity of zeolite nano-particles but it was not statistically significant.
Keywords: Paraquat, Zeolite, Box-Behnken design, HPLC.
ACETYLATION OF BENZYLIC ALCOHOLS OVER BiFeO3 (BFO), Bi0.86Sm0.07Eu0.07FeO3 (B...EDITOR IJCRCPS
BiFeO3 (BFO), Bi0.86Sm0.07Eu0.07FeO3 (BSEFO), and Bi0.86Sm0.07Cd0.07FeO3 (BSCFO) nanopowders were prepared by the sol-gel
combustion method and the catalytic performances were evaluated in acetylation reaction of benzyl alcohol. The physical chemical
properties of catalysts were characterized by using XRD, FT-IR, scanning electron microscope (SEM), EDX and BET surface.
Efficient acetylation of benzyl alcohol was carried out over all the nano powders using acetyl chloride/ acetonitrile at room
temperature. Among the nanopowders, BSCFO showed the highest catalytic performance and the yield of benzyl acetate was 89,
45, and 69 percent over BSCFO, BFO, and BSEFO, respectively. Partial substitution of Sm-Eu and Sm-Cd in bismuth ferrite
improved the catalytic performance and increased the specific surface area of the catalysts. A direct relationship was resulted
between catalytic performance and surface of catalysts, where BSCFO with the highest surface area (111m2/g) exhibited the
superior catalytic performance. The quantitative yield for acetate product was also resulted for acetylation of p-methyl benzyl
alcohol, p-nitro benzyl alcohol and p-chloro benzyl alcohol on BSCFO. The catalysts showed good reusability in the process. The
study confirmed the catalysts could be promising catalyst for acetylation of alcohols.
Keywords: Europium, Samarium, Bismuth ferrites, nano perovskite, doping, Acetylation, benzylic alcohols.
COPPER (II) PHENANTHROLINE COMPLEXES: SYNTHESIS, SPECTROSCOPIC STUDY AND ELEC...EDITOR IJCRCPS
Reaction of copper chloride [CuCl2] with NaaiR´ in acetone medium following ligand(1-10 phenanthroline) addition leads to
[Cu(NaaiR/)(phen)] where NaaiR/ = naphthylazo imidazole /benzimidazole /pyridine = -C10H4-N=N- / -C3H2-NN-1-R/, (R =
imidazole) / -C7H4-NN-1-H (Benzimidazole), / -C3H4-N-(Pyridine), abbreviated as -N,N/-chelator, where -N(imidazole) and -N(azo)
represent N and N/, respectively; R/ = H(a), Me (b)]. The 1H NMR spectral measurements suggest the molecular structure of the
chelated complex with the protons at the aromatic region and naphthyl protons at higher ∂ value. 13C NMR spectrum suggest the
molecular skeleton. The voltammogramalso shows a small anodic peak at 0.2 V, possibly due to the Cu(I)/Cu(0) couple.
Keywords: Copper(II), Naphthylazoimidazole, NMR, IR, ESIMS.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.