International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Weiber Plant Growth Chambers are designed to study the effect of described different environmental factors such
as humidity, temperature and light in various application tests on the growth of plants.
Weiber Plant Growth Chambers are designed to study the effect of described different environmental factors such
as humidity, temperature and light in various application tests on the growth of plants.
The Six Highest Performing B2B Blog Post FormatsBarry Feldman
If your B2B blogging goals include earning social media shares and backlinks to boost your search rankings, this infographic lists the size best approaches.
Each technological age has been marked by a shift in how the industrial platform enables companies to rethink their business processes and create wealth. In the talk I argue that we are limiting our view of what this next industrial/digital age can offer because of how we read, measure and through that perceive the world (how we cherry pick data). Companies are locked in metrics and quantitative measures, data that can fit into a spreadsheet. And by that they see the digital transformation merely as an efficiency tool to the fossil fuel age. But we need to stretch further…
Evaluation of Protective Efficacy of Hydro Alcoholic Extract and Methanol Fra...paperpublications3
Abstract: The objective of the study was to investigate and compare the radioprotective effect of hydroalcoholic extract (HAE) and methanol fraction (MF) of Tamarindus indica pod in mice against electron beam radiation. Animals were treated with 100 mg/Kg body weight of HAE and MF of T. indica for 15 consecutive days before exposing to 6Gy (sublethal dose) whole body EBR. The irradiation of animals resulted in an elevation in lipid peroxidation and reduction in glutathione, total antioxidants and antioxidant enzymes such as superoxide dismutase, glutathione peroxidase and catalase activities. Irradiated group had shown micronucleus in the bone marrow cells. Treatment of mice with HAE and MF before irradiation, reduced the symptoms of radiation sickness when compared with the irradiated group. Pretreated mice showed a significant reduction in lipid peroxidation followed by elevation in reduced glutathione, total antioxidants and antioxidant enzymes such as superoxide dismutase, glutathione peroxidase and catalase. It also showed a reduction in the micronucleus formation in bone marrow cells. The findings of our study indicate the protective efficacy of HAE and MF on radiation induced biochemical and chromosomal changes in mice may be due to its free radical scavenging and increased antioxidant levels. It also reveals MF, a better protective agent than that of HAE of T. indica.
The Aloe Vera plant has been known and utilized for centuries for its wellbeing, magnificence, therapeutic and skin care properties. There are over300 species of aloe, which develops basically within the dry districts of Africa, Asia, Europe and America. Aloe Vera could be a characteristic item thats presently a day regularly utilized within the field of cosmetology. In spite of the fact that there are different signs for its utilize, controlled trials are required to decide its genuine viability. The aloe Vera plant, its properties, component of activity and clinical employments are briefly looked into in this article. The Aloe plant is utilized as a dietary supplement in an assortment of nourishments and as an fixing in restorative items. The far reaching human introduction and its potential harmful and carcinogenic exercises raise security concerns. Chemical examination uncovers that the Aloe plant contains different polysaccharides and phenolic chemicals, outstandingly anthraquinones. Ingestion of Aloe arrangements is related with the runs, hypokalemia, pseudomelanosis coli, kidney disappointment. Aloe Vera can be utilized in different conditions like Gentle to direct burns, Erythema, Genital herpes, Seborrheic dermatitis, Psoriasis vulgaris, Skin moisturizer, Sort 2 diabetes, Verbal lichen planus diseases, Angina pectoris, Ulcerative colitis, UV induced erythema, Kidney stones and Alveolar osteitis. In common, topical application of aloe Vera arrangements has been respected as secure as evaluated by the Corrective Fixing Audit Master Board. Be that as it may, a few case reports of the advancement of touchiness responses and contact dermatitis in reaction to topically connected aloe gel arrangements have been distributed. Arup Jyoti Pegu | Mrs. Ankita Sharma ""Review on Aloe Vera"" 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/ijtsrd23541.pdf
Paper URL: https://www.ijtsrd.com/pharmacy/pharmacognosy-/23541/review-on-aloe-vera/arup-jyoti-pegu
DOI: 10.21276/ijlssr.2016.2.3.18
ABSTRACT- Present investigations evaluated the effect of Argemone mexicana leaves extract on gut of Heliothis
armigera (Hub.) at different solvents. The effect of leaf extract of Argemone mexicana in ethanol and acetone solvent after
24 and 96 hours of treatment on Heliothis armigera shows severity of the damage of epithelial lining, epithelial cells
showed vacuoles at certain places. The gut lining was also found to be damaged and the lumen became wider after the
effect of ethanol extract of A. mexicana. In acetone extract of A. mexicana, the thickness of the fore gut wall has been
increased due to clumping of the tissue and hence the diameter of the foregut was reduced. The lumen therefore became
narrower and columnar epithelial cells showed the vacuoles.
Key-words- Heliothis armigera, Argemone mexicana, Ethanol, acetone, Epithelial lining, Epithelial cells, vacuoles, Gut
lining, Gut wall
DOI: 10.21276/ijlssr.2016.2.4.18
ABSTRACT- The Jambulor jambolan has been used for many years in traditional Indian medicine as treatment for
various diseases for example, diabetes mellitus, as well as bactericide. This study aimed to determine the conductivity in
different samples of a freeze-dried aqueous extract of Syzygium jambolanum. The readings of the electrical voltages of the
samples subjected to different treatment conditions were carried out in a pH meter. Depending on the performed statistical
analysis could be consttar a significant difference (p <0.001) among all samples analyzed groups. In view of the results
obtained, it can be suggested que the behavior related to changes in the electrical voltage values of the samples of an
aqueous extract of Syzygium jambolum, is related to the presence of molecules derived from flavonoids with antioxidant
properties, which can be molecules anthocyanin, which may be present in the samples of said plant extract Studied. Key-words- Syzygium jambolanum, Anthocyanin, Flavonoids, Atioxidant, Natural extract
Rice stress related gene expression analysis 2019RonHazarika
The study revealed that the proteins seem similar in structure but functionally they are much more diverse. This analysis can help to identify the molecular basis of phenotypic differences and select gene expression targets for in-depth study. The regulation of gene expression in plants, as in other higher eukaryotes, is a subject of daunting complexity.
A phytochemical and pharmacological review on canarium solomonenseAI Publications
The genus Canarium L. consists of 75 species of aromatic trees which are found in the rainforests of tropical Asia, Africa and the Pacific. The medicinal uses, botany, chemical constituents and pharmacological activities are now reviewed. Various compounds are tabulated according to their classes their structures are given. Traditionally canarium solomonense have been used to treat a broad array of illnesses. Pharmacological actions for canarium solomonense as discussed in this review include antibacterial, antimicrobial, antioxidant, anti-inflammatory, hepatoprotective and antitumor activity.
Effect of environmental pollution on the quality of an edible plant Alternant...Premier Publishers
The present study is the comparative analysis of phytochemical constituents and microbial load of an edible plant Alternanthera philoxeroides (Mart.) Griseb collected from unpolluted and polluted site. Preliminary phytochemical analysis was performed with acetone, aqueous, chloroform, ethanol and petroleum ether extracts (unpolluted and polluted site) of A philoxeroides that showed the presence of alkaloids, carbohydrates, saponins, phenols, flavonoids, aminoacids, diterpenes, tannin, terpenoids, protein, steroid, oxalate, coumarin and quinones. The ethanol extract showed higher number of phytochemical constituents when compared to the other extract of unpolluted site. The microbial load is also enumerated in the unpolluted and polluted site. In conclusion, phytochemical analysis revealed the presence of many phytoconstituents in ethanol extract and the microbial load is less in the unpolluted site when compared to the polluted site.
A Review on the Antimicrobial Activity of Sesuvium Portulacastrumijtsrd
Mangroves are unique group of vascular plants that occur in saline coastal habitats and are known to tolerate extreme environmental conditions. Some mangrove plants are used for a wide range of conditions, including bacterial, fungal, and viral diseases. The rise of antibiotic-resistant microorganisms is one of the severe problems in healthcare systems of the world, and infectious diseases are the second most serious cause of death worldwide. Therefore, new drugs have to be found in order to combat such diseases and it is essential to find new compounds that have antimicrobial properties. Medicinal-plant extracts, known to produce certain bioactive molecules which react with other organisms in the environment, are known to be less toxic to humans and are environmentally friendly due to the less pollutant released during production. Antimicrobial properties of medicinal plants are being increasingly reported worldwide. Mangroves are biochemically unique and produce a wide array of novel natural products and are considered a rich source of steroids, triterpenes, saponins, flavonoids, alkaloids, and tannins. Extracts from the leaves, stems, barks, and roots of mangrove species have shown positive results for antioxidant activity tests. G. Beulah | D. Divya"A Review on the Antimicrobial Activity of Sesuvium Portulacastrum" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018, URL: http://www.ijtsrd.com/papers/ijtsrd14540.pdf http://www.ijtsrd.com/biological-science/zoology/14540/a-review-on-the-antimicrobial-activity-of-sesuvium-portulacastrum/g-beulah
The Six Highest Performing B2B Blog Post FormatsBarry Feldman
If your B2B blogging goals include earning social media shares and backlinks to boost your search rankings, this infographic lists the size best approaches.
Each technological age has been marked by a shift in how the industrial platform enables companies to rethink their business processes and create wealth. In the talk I argue that we are limiting our view of what this next industrial/digital age can offer because of how we read, measure and through that perceive the world (how we cherry pick data). Companies are locked in metrics and quantitative measures, data that can fit into a spreadsheet. And by that they see the digital transformation merely as an efficiency tool to the fossil fuel age. But we need to stretch further…
Evaluation of Protective Efficacy of Hydro Alcoholic Extract and Methanol Fra...paperpublications3
Abstract: The objective of the study was to investigate and compare the radioprotective effect of hydroalcoholic extract (HAE) and methanol fraction (MF) of Tamarindus indica pod in mice against electron beam radiation. Animals were treated with 100 mg/Kg body weight of HAE and MF of T. indica for 15 consecutive days before exposing to 6Gy (sublethal dose) whole body EBR. The irradiation of animals resulted in an elevation in lipid peroxidation and reduction in glutathione, total antioxidants and antioxidant enzymes such as superoxide dismutase, glutathione peroxidase and catalase activities. Irradiated group had shown micronucleus in the bone marrow cells. Treatment of mice with HAE and MF before irradiation, reduced the symptoms of radiation sickness when compared with the irradiated group. Pretreated mice showed a significant reduction in lipid peroxidation followed by elevation in reduced glutathione, total antioxidants and antioxidant enzymes such as superoxide dismutase, glutathione peroxidase and catalase. It also showed a reduction in the micronucleus formation in bone marrow cells. The findings of our study indicate the protective efficacy of HAE and MF on radiation induced biochemical and chromosomal changes in mice may be due to its free radical scavenging and increased antioxidant levels. It also reveals MF, a better protective agent than that of HAE of T. indica.
The Aloe Vera plant has been known and utilized for centuries for its wellbeing, magnificence, therapeutic and skin care properties. There are over300 species of aloe, which develops basically within the dry districts of Africa, Asia, Europe and America. Aloe Vera could be a characteristic item thats presently a day regularly utilized within the field of cosmetology. In spite of the fact that there are different signs for its utilize, controlled trials are required to decide its genuine viability. The aloe Vera plant, its properties, component of activity and clinical employments are briefly looked into in this article. The Aloe plant is utilized as a dietary supplement in an assortment of nourishments and as an fixing in restorative items. The far reaching human introduction and its potential harmful and carcinogenic exercises raise security concerns. Chemical examination uncovers that the Aloe plant contains different polysaccharides and phenolic chemicals, outstandingly anthraquinones. Ingestion of Aloe arrangements is related with the runs, hypokalemia, pseudomelanosis coli, kidney disappointment. Aloe Vera can be utilized in different conditions like Gentle to direct burns, Erythema, Genital herpes, Seborrheic dermatitis, Psoriasis vulgaris, Skin moisturizer, Sort 2 diabetes, Verbal lichen planus diseases, Angina pectoris, Ulcerative colitis, UV induced erythema, Kidney stones and Alveolar osteitis. In common, topical application of aloe Vera arrangements has been respected as secure as evaluated by the Corrective Fixing Audit Master Board. Be that as it may, a few case reports of the advancement of touchiness responses and contact dermatitis in reaction to topically connected aloe gel arrangements have been distributed. Arup Jyoti Pegu | Mrs. Ankita Sharma ""Review on Aloe Vera"" 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/ijtsrd23541.pdf
Paper URL: https://www.ijtsrd.com/pharmacy/pharmacognosy-/23541/review-on-aloe-vera/arup-jyoti-pegu
DOI: 10.21276/ijlssr.2016.2.3.18
ABSTRACT- Present investigations evaluated the effect of Argemone mexicana leaves extract on gut of Heliothis
armigera (Hub.) at different solvents. The effect of leaf extract of Argemone mexicana in ethanol and acetone solvent after
24 and 96 hours of treatment on Heliothis armigera shows severity of the damage of epithelial lining, epithelial cells
showed vacuoles at certain places. The gut lining was also found to be damaged and the lumen became wider after the
effect of ethanol extract of A. mexicana. In acetone extract of A. mexicana, the thickness of the fore gut wall has been
increased due to clumping of the tissue and hence the diameter of the foregut was reduced. The lumen therefore became
narrower and columnar epithelial cells showed the vacuoles.
Key-words- Heliothis armigera, Argemone mexicana, Ethanol, acetone, Epithelial lining, Epithelial cells, vacuoles, Gut
lining, Gut wall
DOI: 10.21276/ijlssr.2016.2.4.18
ABSTRACT- The Jambulor jambolan has been used for many years in traditional Indian medicine as treatment for
various diseases for example, diabetes mellitus, as well as bactericide. This study aimed to determine the conductivity in
different samples of a freeze-dried aqueous extract of Syzygium jambolanum. The readings of the electrical voltages of the
samples subjected to different treatment conditions were carried out in a pH meter. Depending on the performed statistical
analysis could be consttar a significant difference (p <0.001) among all samples analyzed groups. In view of the results
obtained, it can be suggested que the behavior related to changes in the electrical voltage values of the samples of an
aqueous extract of Syzygium jambolum, is related to the presence of molecules derived from flavonoids with antioxidant
properties, which can be molecules anthocyanin, which may be present in the samples of said plant extract Studied. Key-words- Syzygium jambolanum, Anthocyanin, Flavonoids, Atioxidant, Natural extract
Rice stress related gene expression analysis 2019RonHazarika
The study revealed that the proteins seem similar in structure but functionally they are much more diverse. This analysis can help to identify the molecular basis of phenotypic differences and select gene expression targets for in-depth study. The regulation of gene expression in plants, as in other higher eukaryotes, is a subject of daunting complexity.
A phytochemical and pharmacological review on canarium solomonenseAI Publications
The genus Canarium L. consists of 75 species of aromatic trees which are found in the rainforests of tropical Asia, Africa and the Pacific. The medicinal uses, botany, chemical constituents and pharmacological activities are now reviewed. Various compounds are tabulated according to their classes their structures are given. Traditionally canarium solomonense have been used to treat a broad array of illnesses. Pharmacological actions for canarium solomonense as discussed in this review include antibacterial, antimicrobial, antioxidant, anti-inflammatory, hepatoprotective and antitumor activity.
Effect of environmental pollution on the quality of an edible plant Alternant...Premier Publishers
The present study is the comparative analysis of phytochemical constituents and microbial load of an edible plant Alternanthera philoxeroides (Mart.) Griseb collected from unpolluted and polluted site. Preliminary phytochemical analysis was performed with acetone, aqueous, chloroform, ethanol and petroleum ether extracts (unpolluted and polluted site) of A philoxeroides that showed the presence of alkaloids, carbohydrates, saponins, phenols, flavonoids, aminoacids, diterpenes, tannin, terpenoids, protein, steroid, oxalate, coumarin and quinones. The ethanol extract showed higher number of phytochemical constituents when compared to the other extract of unpolluted site. The microbial load is also enumerated in the unpolluted and polluted site. In conclusion, phytochemical analysis revealed the presence of many phytoconstituents in ethanol extract and the microbial load is less in the unpolluted site when compared to the polluted site.
A Review on the Antimicrobial Activity of Sesuvium Portulacastrumijtsrd
Mangroves are unique group of vascular plants that occur in saline coastal habitats and are known to tolerate extreme environmental conditions. Some mangrove plants are used for a wide range of conditions, including bacterial, fungal, and viral diseases. The rise of antibiotic-resistant microorganisms is one of the severe problems in healthcare systems of the world, and infectious diseases are the second most serious cause of death worldwide. Therefore, new drugs have to be found in order to combat such diseases and it is essential to find new compounds that have antimicrobial properties. Medicinal-plant extracts, known to produce certain bioactive molecules which react with other organisms in the environment, are known to be less toxic to humans and are environmentally friendly due to the less pollutant released during production. Antimicrobial properties of medicinal plants are being increasingly reported worldwide. Mangroves are biochemically unique and produce a wide array of novel natural products and are considered a rich source of steroids, triterpenes, saponins, flavonoids, alkaloids, and tannins. Extracts from the leaves, stems, barks, and roots of mangrove species have shown positive results for antioxidant activity tests. G. Beulah | D. Divya"A Review on the Antimicrobial Activity of Sesuvium Portulacastrum" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018, URL: http://www.ijtsrd.com/papers/ijtsrd14540.pdf http://www.ijtsrd.com/biological-science/zoology/14540/a-review-on-the-antimicrobial-activity-of-sesuvium-portulacastrum/g-beulah
The coastal medicinal plant Vitex rotundifolia: a mini-review on its bioactiv...LucyPi1
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Unsubscribed: Combat Subscription Fatigue With a Membership Mentality by Head...
Ao34242247
1. Faizan Ahmed Sheikh, Raminder Preet Pal Singh, Jang Bahadur Singh, Parveen Lehana/
International Journal of Engineering Research and Applications
(IJERA) ISSN: 2248-9622 www.ijera.com
Vol. 3, Issue 4, Jul-Aug 2013, pp.242-247
242 | P a g e
Effect Of Microwaves On The Resistance Of Aloe Vera Leaves
Faizan Ahmed Sheikh1
, Raminder Preet Pal Singh1
, Jang Bahadur Singh2
,
Parveen Lehana2
1
Deptt. of Electrical and Electronics, ARNI University, Kathgarh, Himachal Pradesh, India
2
D.S.P Lab, Deptt. of Physics and Electronics, University of Jammu, Jammu, J&K, India
ABSTRACT
For centuries plants has been exposed to
natural electromagnetic sources such as radiation
from sun, space, and earth. Today, in addition to
this natural radiation and owing to immediate
technological progresses these plants are further
exposed to man-made electromagnetic radiation
(EM). A variety of products and applications in
our day to day life makes use of a number of
forms of electromagnetic energy. One such form
of energy is Microwave. Microwaves are non-
ionizing electromagnetic radiations. These are
electromagnetic waves with wavelengths ranging
from as long as one meter to as short as one
millimetre, or equivalently, with frequencies
between 300 MHz (0.3 GHz) and 300 GHz. These
frequencies may affect the quality of micro waved
treated Aloe Vera leaves. The effect of microwave
on Aloe Vera leaves was studied. Aloe Vera plant
has been chosen in view of the fact that it has
numerous applications in dermatology. It is also
famous as “Lily of Desert”. The leaves of Aloe
Vera contain a soothing thick sap that is valuable
for healing and curing of wounds and diseases.
The objective of this study is to investigate the
changes in electrical properties of Aloe Vera
plants after exposure to different amount of
microwaves. It was found that the on exposure to
microwaves the Aloe Vera Leaves first showed a
marked increase in the current across it with a
slight increase in the voltage but afterwards it
adjusted itself to the normal value.
Keywords - Aloe Vera, D. C. resistance, Effect of
microwaves, Klystron, Microwave test bench,
Surface electrodes.
I. INTRODUCTION
Since atmosphere microwave window
allows diffusion of cosmic rays with frequencies
ranging within GHz domain, there is always a
microwave element within the environment emission
background [1]. Microwave spectrum falls in
between the Infra-Red (IR) and the Radio frequency
(RF) segment of the electromagnetic radiation.
Microwaves are electromagnetic waves with
wavelengths ranging from as long as one meter to as
short as one millimeter, or equivalently, with
frequencies between 300 MHz (0.3GHz) and
300GHz. This broad definition includes both UHF
and EHF (millimeter waves), and various sources
use different boundaries. In all cases, microwave
includes the entire SHF band (3 to 30 GHz, or 10 to
1cm) at minimum, with RF engineering often putting
the lower boundary at 1 GHz (30 cm), and the upper
around 100 GHz (3 mm). Microwaves are used in
plywood, paint, inks, synthetic rubber, and medical
related manufacturing industries [2]. Microwaves are
non ionizing radiations. These radiations are the part
of the electromagnetic spectrum. Wireless
telecommunication devices enhance the exposure of
radio and microwave frequencies in the
environment. The energy content of the
electromagnetic (EM) waves is related to the
frequency as:
E hv where E = Electric field, h = Plank’s
constant, and ν = frequency.
The plants have cellular receptors which are use
to observe changes in their surroundings. These
changes are of different types and differ from plant
to plant. All living organisms generate and conduct
electrochemical impulses all the way through their
different tissues and organs. It has been
demonstrated experimentally the properties of
temperature sensing in plants [3]. The plants also
show reaction to the exciting electrical signals.
These signals may set off different physiological
reactions [4]. The main physical signal in any
organism is electrical signal. The electrical signals
are capable of transmitting signals at a long distance.
Recently, biologists have revealed that the
significance of physiological activities depends upon
the electrical signals [5]. Plants play a significant
role in the living world as main producers of food
and oxygen, therefore it would be advantageous to
investigate their relations with today’s increased
exposure to radio and microwave frequency fields.
The effect of microwave causes alteration in
electrical properties of Aloe Vera plants. The new
and energetic area of scientific research is the studies
associated to the microwave effects. Microwave
effects can be generally classified into thermal and
non thermal. It is well known that microwave fields
have poor biological effects at high power levels.
But, effects at low power levels have not been fully
implicit. Radiations are known to encourage
physiological and genetic modifications [6-9]. The
2. Faizan Ahmed Sheikh, Raminder Preet Pal Singh, Jang Bahadur Singh, Parveen Lehana/
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Vol. 3, Issue 4, Jul-Aug 2013, pp.242-247
243 | P a g e
objective of this paper is to investigate the changes
in electrical properties of the Aloe Vera leaves
exposed to microwave radiations. The details of
Aloe Vera plant is presented in Section II. The
methodology is given in Section III and results &
discussions in Section IV along with the conclusions
in Section V.
II. ALOE VERA
Aloe Vera is a stem less plant having a
height of 60–90 cm (24–36 inches) tall, spreading
by offsets. The stem has dormant root buds that
develop to form new roots. The leaves are thick and
fleshy, green to grey-green, with some varieties
showing white flecks on the upper and lower stem
surfaces [10]. Aloe Vera plant gel is a lively
ingredient in a number of different skin care
products that facilitates to treat a wide variety of
different problems of skin. Healing properties of
Aloe Vera plant make it so beneficial for skin care.
It helps in restoring skin's natural beauty this is one
of the most important benefits of Aloe Vera. The
plant can survive in hot temperatures ranging from
40 degrees Celsius down to freezing temperatures as
far as the root of the plant is not damaged [11]. Its
thick leaves include the water supply for the plant to
survive long periods of drought. These leaves have a
high capability of retaining the water. Transparent
gel from the pulp of the fleshy leaves of Aloe Vera
has been used topically for thousands of years to
treat wounds, skin infections, burns, and numerous
other dermatologic conditions. Dried latex from the
inner lining of the leaf has traditionally been used as
an oral laxative [12]. Aloe Vera gel is used as an
ingredient in commercially available lotions, yogurt,
beverages, and some desserts [13-14]. The use of
Aloe Vera gel in cosmetics has a function analogous
to anti-aging effects of vitamin A derivatives [15].
A. Water Storing Mechanism of Aloe Vera
The Aloe Vera store water in their enlarged
fleshy leaves stems or roots as shown below. This
allows them to survive in arid environments. The
Aloe Vera leaf has a clear, inner, fleshy, portion. It is
rich in nutrients and very healthy for both internal
and external consumption. Fig. 1. shows Split Aloe
Vera leaf with fleshy clear inner part.
B. Physiology of Aloe Vera
Aloe Vera is a perennial liliaceous plant
which has juicy green leaves attached at the stem in
a whorled pattern. It has thick fibrous root which
produces large basal leaves. The leaves are one to
two feet long, and three to four centimeters wide,
gradually tapering to a point. They are whitish green
on both sides and bear spiny teeth on the margins.
Fig. 2. shows the whorled pattern of Aloe Vera
leaves.
Fig. 1. Split Aloe Vera leaf with fleshy clear inner
part.
Fig. 2. Whorled pattern of Aloe Vera leaves.
C. Anatomy of Aloe Vera
It consists of three main parts:
1. Aloe Vera Rind: The protective, green,
outer covering of the leaf is called Aloe
Vera Rind.
2. Aloe Vera Latex: This is the middle part of
the Aloe Vera leaf which is bitter. It is in
between the inner fleshy part and outer part
like a sap. This sap is contained in special
tubules which form a portion of the nutrient
tubes of the vascular bundles located just
beneath the wax-covered, thick green rind
of the leaf.
3. Aloe Vera Gel: This is the inner portion of
the leaf and is very fleshy. It is rich in
nutrients and is recommended for
consumption. The gel, which consist the
bulk of the leaf substance, serves as the
water storage space organ for the plant.
This gel, which may be separated as a semi-
solid “fillet” before processing, contains
more than 200 different substances. Chief
among these are polysaccharides, glycol
proteins, vitamins, mineral and enzymes.
3. Faizan Ahmed Sheikh, Raminder Preet Pal Singh, Jang Bahadur Singh, Parveen Lehana/
International Journal of Engineering Research and Applications
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Vol. 3, Issue 4, Jul-Aug 2013, pp.242-247
244 | P a g e
Fig. 3. Anatomy of Aloe Vera leaf.
D. Economical Importance of Aloe Vera
It is highly appreciated because of its use in
pharmaceutical industries, folk medicine, healthcare,
cosmetic and food industries. It also has high
economic value among all the plant species [16]. In
homeopathic medicine Aloe Vera is used for
haemorrhoids. In India Aloe Vera has been referred
to as "Kumari’ in Ayurveda treatments. A number of
selected Aloe Vera species are valued for their
beauty and ornamental value.
E. Electrical Properties of Aloe Vera
1.Electrical Resistance: Resistance is the
opposition offered by the Aloe Vera Plant
when the current is passed through the Aloe
Vera tissue .The phenomenon of polarization
occurs, when the current is passed through it,
i.e. at the level of each electrode a double
layer of ions get deposited which acts as an
insulator prevents the current from passing.
2.Electrical Capacitance: Capacitance is the
ability of a body to store an electrical charge.
When the current is passed through the Aloe
Vera tissue it gets electrically charged and the
charge is stored in the form of energy. It acts
like a parallel plate capacitor.
If the charges on the plates are +q and −q,
and V give the voltage between the plates, then the
capacitance C will be:
q
C
V
That gives the voltage/current relationship:
( )
( )
dV t
I t C
dt
Thus, for a fixed value of capacitance, the rate of
change of voltage is directly proportional to current.
III. METHODOLOGY
The investigations were carried out on the
leaves of the Aloe Vera plant to study the effect of
microwaves on the electrical resistance of the leaves.
The plant was grown in a pot containing fertile soil
under natural environmental conditions. In this
research, microwave setup was installed and these
microwaves were applied on the Aloe Vera leaf to
record any change in the resistance of the leaf. The
experimental setup can be understood below in
Fig. 4.
Fig. 4. Microwave setup for exposure of Aloe Vera
leaf to microwaves.
First of all the Aloe Vera leaf was taken
and the two surface electrodes were attached on the
leaf at a distance of 6.5 cm. With these two
electrodes the electrical connections were
established as shown below in the Fig. 5, where e1
and e2 are surface electrodes on the Aloe Vera leaf.
DC
+ -
10 k
Potentiometer
µ A
e1
e2
Fig. 5. Circuit diagram for calculating resistance of
the Aloe Vera leaf.
The voltage as well as current across the
leaf was measured without exposing it to
microwaves. Then the microwave setup was
established that consisted of Klystron along with the
Klystron power supply. The voltage across the
Klystron power supply when switched on was 300
V. Klystron is a specialized liner-beam vacuum tube
which is used as an amplifier for high frequencies.
Here the klystron is used as a waveguide for
coupling microwave energy into and out of the
device. Now, the two surface electrodes were
attached to the Aloe Vera Leaf at a distance of 6.5
cm and further this Aloe Vera leaf bearing electrodes
was kept at a distance of 41 cm away from the
Klystron in between the two horns having a gap of
4. Faizan Ahmed Sheikh, Raminder Preet Pal Singh, Jang Bahadur Singh, Parveen Lehana/
International Journal of Engineering Research and Applications
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Vol. 3, Issue 4, Jul-Aug 2013, pp.242-247
245 | P a g e
10 cm from each other. The distance between the
Aloe Vera leaf was 5 cm from either horn. The
length & width of the horn was 15 cm & 10 cm
respectively. After that the apparatus consisting of
Aloe Vera leaf bearing electrodes and the horns was
wrapped with the thin aluminum foil and was
exposed to microwaves for every 2400 seconds.
IV. RESULTS AND DISCUSSIONS
Investigations were carried out using
microwaves for the determination of the electrical
properties of the Aloe Vera plant. An Aloe Vera
tissue acts as an ionic conductor and when the direct
current is passed through an ionized solution the
well-known phenomenon of polarization occurs, i.e.
very rapidly at the level of each electrode a double
layer of ions gets deposited which acts as an
insulator and prevents the current from passing. Aloe
Vera leaf was given microwave exposure for same
durations of 2400 s, 4800 s, 7200 s, 14400 s and this
experiment was repeated 4 times on the same Aloe
Vera leaf. The results are explained in Table I.
Table I. Resistance calculated every 2400 s of
microwave exposure.
Microwave
Exposed
Time (s)
Voltage
(V)
Current (µA) Resistance
(MΩ)
0 4.78 6 0.79
2400 4.78 9 0.53
4800 4.81 6 0.8
7200 4.78 5 0.95
14400 4.79 5.5 0.87
The Resistance (in mega ohms) curve of
this circuit is represented in Fig. 6 below with
respect to the Time, where VCR variations are
variation in voltage, current and resistance in volts,
microampere and mega ohms respectively. For the
first 2400 s of the exposure to microwaves the
current across the Aloe Vera leaf was increased to 9
µA from 6µA which was without exposure to
microwaves. The voltage across the leaf remained
constant i.e. 4.78 V and the resistance calculated was
0.53 mega-ohms. After that the leaf was again
exposed to microwaves for next 4800 s, 7200 s and
14400 s and it was found that the current first
adjusted itself to 6 µA, 5 µA and 5.5 µA respectively
and the voltages recorded were 4.81 V, 4.78 V, and
4.79 V respectively.
Fig. 6. Resistance curve of Aloe Vera leaf with
respect to the exposed time.
The calculated values are represented in
form of Histogram.
Fig. 7. Variation of voltage, current and resistance
of Aloe Vera leaf with respect to the exposed time.
V. CONCLUSION
The investigations were carried out to study
the variation of resistance in the Aloe Vera leaves.
The experiments have shown that the resistance of
the Aloe Vera leaves showed a specific non-linear
function of time of microwave exposure. Also it
shows that whenever the dc power supply is given to
the Aloe Vera leaf, before microwave exposure it
offers a high resistance to the applied voltage and
after the microwave exposure the resistance
decreases slightly and then readjusts itself to the
normal value. Moreover this idea of electrical
processes in plants may lead to elaboration of new
approaches and mean of objective diagnostics of
physiological state of the plants.
ACKNOWLEDGEMENTS
The authors would like to express a deep
sense of gratitude and thanks to Mr. Adil Bhat,
M.Phil. Chemistry, for extending his knowledge and
help. The authors would also like to thanks to their
parents who have been the ultimate source of
5. Faizan Ahmed Sheikh, Raminder Preet Pal Singh, Jang Bahadur Singh, Parveen Lehana/
International Journal of Engineering Research and Applications
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Vol. 3, Issue 4, Jul-Aug 2013, pp.242-247
246 | P a g e
support. Their constant guidelines and
encouragement made this possible.
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BIOGRAPHY
Er. Faizan Ahmed Sheikh received
his B.E. Degree in Electronics and
Communication Engineering from
Model Institute of Engineering and
Technology, Kot Bhalwal, Jammu
(J&K) affiliated to University of
Jammu, Jammu (J&K). He is presently doing
M.Tech. in Electrical and Electronics Engineering
from ARNI University, Kathgarh (H.P). His fields of
interests are Microcontrollers, Microwaves and
Image processing. He also did four weeks industrial
training from Bharat Sanchar Nigam Limited,
Exchange Road, Jammu.
Mr. Raminder Preet Pal Singh
received his M.Tech. Degree in
Electronics and Communication
Engineering from Beant College of
Engineering and Technology,
Gurdaspur (Punjab) affiliated to
Punjab Technical University, Jalandhar (Punjab). He
is presently working as Associate Dean and Head in
ECE/EEE Department, ARNI University, Kathgarh
(Himachal Pradesh) and pursuing Ph.D in Nano-
technology. His research interests include Low-
Power VLSI Design, Digital System Design, and
Microcontroller Based System Design. He has
published research papers in reputed International
Journals/Conferences.
Mr. Jang Bahadur Singh is pursuing
Ph.D in biomedical speech signal
processing in the Department of
Physics and Electronics, University of
Jammu under the guidance of Dr.
Parveen Lehana. His research interests include
6. Faizan Ahmed Sheikh, Raminder Preet Pal Singh, Jang Bahadur Singh, Parveen Lehana/
International Journal of Engineering Research and Applications
(IJERA) ISSN: 2248-9622 www.ijera.com
Vol. 3, Issue 4, Jul-Aug 2013, pp.242-247
247 | P a g e
speech, biomedical signal processing, robotics, and
microwaves. He has more than 10 publications.
Dr. Parveen Lehana received his
Master’s degree in Electronics from
Kurukshetra University in 1992 and
qualified UGC-CSIR-NET-JRF in
Physical Sciences and Electronics.
He joined University of Jammu in
1995 as Assistant Professor. Presently, he is working
as Associate Professor in Physics and Electronics
Department, University of Jammu. He did his
research from I.I.T Bombay in the area of signal
processing. He has good experience of guiding
M.Tech, M.Phil. and Ph.D students. He has more
than 120 research papers to his credit. His fields of
interests are speech signals processing, computer
vision, nanotechnology, and microwaves.