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Antifungal activity of some medicinal plants used in Jeddah, Saudi Arabia

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Development of more effective and less toxic antifungal agents is required for the treatment of dermatophytosis. Plants and their extraction preparations have been used as medicines against infectious diseases. In this research, the lemon grass [Cymbopogon citrates DC.) Stapf.], lantana (Lantana camara L.), nerium (Nerium oleander L.), basil (Ocimum basilicum L.) and olive leaves (Olea europaea L.) were extracted with either water or different organic solvent to investigate their antifungal activities in vitro. The methanol extract of lemon grass, lanta and nerium followed by their ethyl acetate extracts showed the highest activities against Trichophyton rubrum. These inhibited the growth of T. rubrum by 85-90 and 80-85%, respectively at a concentration of 100 µg ml -1 , while aqueous extracts inhibited the growth of this fungus at the same concentration by 32-77%. The activity of the methanolic extracts of the 5 selected plants was determined against different pathogenic fungi including Microsporum canis, M. gypseum, and T. mentagrophytes. Extracts of lemon grass were the most effective followed by lantana. . Nerium and basil showed moderate activities. The lowest activity was recorded for olive extract. The five dermatophytes differed with regard to their susceptibility to plant extracts. Trichophyton rubrum was the most susceptible dermatophyte, followed by Microsporum canis, M. gypseum, and T. mentagrophytes, respectively. The MICs of these most active plants ranged from 25 to 125 µg ml −1 . In conclusion, ethanolic extracts of some medicinal plants can be used to treat infections with pathogenic fungi.
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Mycopath (2009) 7(1): 51-57
Antifungal activity of some medicinal plants
used in Jeddah, Saudi Arabia
Fardos M. Bokhari
Faculty of Sciences, Biology Department, King Abdel Aziz University,
P. O. Box 12161, Jeddah 21473, Saudi Arabia
* Corresponding author’s e-mail: fmbokh@kau.edu.sa
Abstract
Development of more effective and less toxic antifungal agents is required for the treatment of
dermatophytosis. Plants and their extraction preparations have been used as medicines against infectious
diseases. In this research, the lemon grass [Cymbopogon citrates DC.) Stapf.], lantana (Lantana camara
L.), nerium (Nerium oleander L.), basil (Ocimum basilicum L.) and olive leaves (Olea europaea L.) were
extracted with either water or different organic solvent to investigate their antifungal activities in vitro. The
methanol extract of lemon grass, lanta and nerium followed by their ethyl acetate extracts showed the
highest activities against Trichophyton rubrum. These inhibited the growth of T. rubrum by 85-90 and 80-
85%, respectively at a concentration of 100 µg ml-1, while aqueous extracts inhibited the growth of this
fungus at the same concentration by 32-77%. The activity of the methanolic extracts of the 5 selected
plants was determined against different pathogenic fungi including Microsporum canis, M. gypseum, and T.
mentagrophytes. Extracts of lemon grass were the most effective followed by lantana. . Nerium and basil
showed moderate activities. The lowest activity was recorded for olive extract. The five dermatophytes
differed with regard to their susceptibility to plant extracts. Trichophyton rubrum was the most susceptible
dermatophyte, followed by Microsporum canis, M. gypseum, and T. mentagrophytes, respectively. The
MICs of these most active plants ranged from 25 to 125 µg ml1. In conclusion, ethanolic extracts of some
medicinal plants can be used to treat infections with pathogenic fungi.
Key words: Antifungal activities, dermatophytes, MIC, Microsporum, Trichophyton.
Introduction
Skin, hair, nail, and subcutaneous tissues in
human and animal are subjected to infection by
several organisms, mainly fungi named
dermatophytes and cause dermatophytoses
(Valeria et al., 1996; Amer et al., 2006).
Dermatophytoses are one of the most frequent skin
diseases of human, pets and livestock (Tsang et
al., 1996). The disease is widely distributed all
over the world with various degrees and more
common in men than in women. There are three
genera of mould that cause dermatophytosis.
These are Epidermophyton, Trichophyton and
Microsporum. Contagiousness among animal
communities, high cost of treatment, difficulty of
control and the public health consequences explain
their great importance (Chermette et al., 2008). A
wide variety of dermatophytes have been isolated
from animals, but a few zoophilic species are
responsible for the majority of the cases, viz.
Microsporum canis, Trichophyton
mentagrophytes, Trichophyton equinum and
Trichophyton verrucosum, as also the geophilic
species Microsporum gypseum (Hasegawa, 2000;
Mahmoudabadi and Zarrin, 2008). According to
the host and the fungal species involved, the
typical aspect of dermatophytic lesions may be
modified. A few antifungal agents are available
and licensed for use in veterinary practice or
human being treatment. The use of systemic drugs
is limited to treat man or animal due to their high
toxicity and problems of residues in products
intended for human consumption (Araujo et al.,
2009). Different treatments have been
recommended to control dermatophtes. In general,
pharmacological treatment option include
antifungal agents [Aly, 1997; Agwa et al., 2000],
but recently the use of some natural plant products
has been emerged to inhibit the causative
organisms. The antimicrobial and antitoxin
properties of some plants, herbs, and their
components have been documented since the late
19th century (Saadabi, 2006). These natural plants
involve garlic, lemon grass, datura, acacia, a
triplex, ginger, black seed, neem, basil, eucalyptus,
alfalfa and basil (Omarand Abd-El-Halim, 1992;
Aly et al., 2000; Aly and Bafiel, 2008). They are
safe to human and the ecosystem than the chemical
antifungal compounds, and can easily be used by
the public who used them for thousands of years to
enhance flavor and aroma of foods as well as its
economic value (Shelef et al., 1980; Shelef, 1983).
52 Fardos M. Bokhari
Early cultures also recognized the value of these
plant materials in medicine . Plant extract has
been used traditionally to treat a number of
infectious diseases including those caused by
bacteria, fungi, protozoa and viruses (Soylu et al.,
2005; Yoshida et al., 2005; Nejad and Deokule,
2009). A number of reports are available in vitro
and in vivo efficacy of plant extract against plant
and human pathogens causing fungal infections
(Natarajan et al., 2003). The activity of plant
extract against dermatophytosis i.e. the superficial
infections of skin or keratinised tissue of man and
animals can be very well visualized from the
reports of Venugopal and Venugopal (1995).
They reported the activity of plant extracts against
88 clinical isolates of dermatophytes which
includes Microsporum cannis, M, audouinii
Trichophyton rubrum T mentagraphytes, T
violaccum, Tsimii, T verrucosum T erinacci and
Epidermophytn floccosum by agar dilution
technique. While Vlietinck et al. (1995) reported
clinical findings of Rwandese medicinal plants
(267 plant extracts) used by traditional healers to
treat microbial infections and found 60% of these
extracts were active against dermatophytes. All
the above reports and many others have utilized
plant extract, juice or oil for the in vitro or in vivo
evaluation of the infections caused by various
species of dermatophytes viz. Trichophyton,
Microsporum, Epidermophyton and yeast like
fungi of genera Canddia, Cryptococcus,
Rhodotorula and Torulopsis trichosporon. Up to
now more than 200 different biologically active
substances have been isolated from plant extract,
among them organosulphur compounds such as
allicin, azoenes and diallyltrisulfide. Eugenol,
phenolic compound, the most important
biologically active compound found in many plant
extract (Kähkönen et al., 1999; Aly and Bafiel,
2008).
The present study was designed to evaluate
the in vitro antidermatophyte activity of some
plant extracts. The antifungal activities of water
and organic plant extract are compared. The
percentage of inhibition and MIC are also
recorded.
Materials and Methods
Pathogenic fungi
The fungi used were obtained from the
culture collection of Dr. R. Bonally, Laboratoire
de Biochemie Microbienne, Fac. De Pharmacie,
Nancy, France. Microsporium ferruginum,
Trichophyton mentagrophytes and
Epidermatophyton sp. were isolated and identified
from contaminated dust samples collected from
different hospitals in Garbia, Egypt (Amer et al.,
2006). All fungi were stored on sabouraud
dextrose agar (Oxoid) slants in the refrigerator at 4
°C prior to use.
Medicinal pant materials
Samples of five medicinal plants, i.e. basil
leaves (Ocinum bacilicum), lantana leaves and
flowers (Lantana camara), lemon grass stalk and
leaves (Cymbopogon citratus), nerium leaves
(Nerium oleander) and olive leaves (Olea
europaea) were collected during October 2007
from different districts of Jeddah city, Saudi
Arabia and identified by Botany department,
Faculty of Sciences, Tanta Uni., Egypt. The plants
were brought to the laboratory and thoroughly
washed in running tap water to remove debris and
dust particles and then rinsed in distilled water.
Preparation of aqueous and organic medicinal
plant extracts
For aqueous and organic extraction, 10
grams of each sun-dried medicinal plant material,
were cut into small pieces and then macerated by
blender 1–2 mm separately and the powder
produced was blended with 100 ml of either
distilled water (cold or hot) or organic solvent
(ethyl alcohol, methanol, n-butanol, ethyl acetate
or chloroform), (1:10 w/v). Then, they were
extracted under cold conditions for 24 h. The
resultant extract was filtered through a glass wool
filter and then rinsed with a small quantity (about
30 ml) of 96% ethyl alcohol. The extracts
solutions were evaporated under reduced pressure
at 40 °C. Subsequently, the extracts were diluted
by distilled water and stored in the deep freezer at
-10 °C and later lyophilized in a freeze dryer.
Antimicrobial activity
Antimicrobial activity of the above
mentioned extracts was determined, using the agar
well diffusion assay method as described by
Holder and Boyce (1994). Dimethyl sulfoxide
DMSO was used as a negative control and
Griseofulvin was used as a positive control. The
plates were done in triplicates and were incubated
at 37 °C. The antimicrobial activity was taken on
the basis of diameter of zone of inhibition, which
was measured after 7 days of incubation and the
mean of three readings is presented. The presence
of inhibition of the treated fungus was calculated
using Griseofulvin as standard (100% inhibition).
The plant extract and the standard antifungal
Mycopath (2009) 7(1): 51-57
Antifungal activity of some medicinal plants 53
agents were dissolved in DMSO, 100%
biologically inert substances.
Determination of minimal inhibitory concentra-
tion of plant extract on fungal growth
The MIC was determined by the methods
described by Chand et al. (1994) and modified by
Aly (1997). Each well of a 96 well ELISA tray
was filled with 175µl of an exponentially growing
culture (106~107CFU ml-1). To each well, 20 µl
solution of each concentration of the test
substance, or the appropriate solvent as control,
was added. The ELISA trays were incubated for
40 minutes before 5 µl of a 0.2% w/v solution of
Fluorescein diacetate (FDA) in acetone was added.
Incubation was continued for 90 minutes more and
the resulting green color from the hydrolysis of
FDA was measured at 490 nm (referenced to 630
nm) and blanked against control wells containing
microbial cultures only, using an MR7000
automatic ELISA tray reader. The agar plates
were incubated overnight (37 °C) and CFU was
counted using a colony counter. The MIC
corresponded to the minimum concentration of the
compound that caused 99% cell inhibition with
respect to the CFU's in a control which contained
microbial cultures and sterile distilled water or
solvent replacing the test compound.
Statistical analysis
Each experiment has three replicates and
three determinations were conducted. Means of
variable and standard deviation were recorded.
Results and Discussion
Many investigations were carried out to
discover plant products that inhibit the fungi like
Trichophyton rubrum and Microsporum canis.
These two species cause common infections in
humans which are difficult to control effectively,
and the pharmaceutical arsenal currently available
against them is rather limited (Evans and White,
1967; Levine, 1982; Gupta et al., 1991; Jansen et
al., 1991). Hence, plant products that inhibit their
growth without harming the host represent
potential therapeutic agent. As stated earlier, five
different plants belonging to different families
(Table 1) used rationally by Saudi Arabia people
were collected from Jeddah, and extracted with
water or organic solvents and their antifungal
activities were detected against T. rubrum which is
considered one of the fungi usually causes disease
in keratinized epithelial structures such as hairs
and nails and can invade the dermis, particularly in
immunocompromised patients (Maoz and
Neeman, 1998). The antifungal activities of the
plant extracts obtained using different organic
solvents were compared with that of Griseofulvin
and the % of inhibition was calculated (Table 2).
Extracts were obtained through the extracting
action of the appropriate solvent on a dry plant and
the active compounds are thus contained in the
solvent used. Each type of extract is defined by
the way it is prepared and the nature of the solvent.
The extraction process is always studied to respect
the integrity of the active molecules. In this
experiment, Methanol extract of lemon grass was
the best to suppress the growth of T. rubrum (90%
inhibition), followed by lantana and nerium
methanolic extract (85-88% inhibition). The
methanol extract of basil as well as olive inhibited
T. rubrum growth by 73-75%. Extraction of basil
and olive with chloroform was found to be the best
(77-80% inhibition) compared to the other extracts
due to the presence of some essential oil which
could be extracted with chloroform. Extraction of
lemmon grass, lantana or nerium with either ethyl
acetate extract, n-butanol or diethyl ether was less
active against T. Rubrum compared to their ethanol
extract. Aqueous extract of cold or hot water of all
examined plants showed the lowest activity against
T. Rubrum compared to different organic solvents
used.
The activity of methanol extract of the five
selected plants against different dermatophytes
were summarized in Table 3. It was found that
lemon grass extract showed maximum antifungal
activity against T. mentagrophytes, followed by T.
verrucosum, M. canis and E. floccosum (Table 3).
Moderate activity was recorded against different
dermatophyted by using lantana. Less activities
were recorded for nerium, basil and olive. Plant
derived compounds are of interest in this context
because they comprise safer or more effective
substitutes for synthetically produced
antimicrobial agents (Dupuis et al., 1972). The
plant extracts used in folkloric medicine in
Palestine, Saudi Arabia (Abdulmoniem, M. A. and
Saadab, 2006; Aly and Bafiel, 2008), Egypt (El-
Fadaly et al., 1999), Mexico (Navarro et al., 1996)
and India (Jain et al., 2004) were investigated for
their antifungal activity and their use to treat
pathogenic fungi. Lemon and lantana extracts
showed excellent antidermatophytic properties
compared to other plant extract which may be due
to free and bound flavonoid fractions, showed the
greatest fungicidal properties. The maximum zone
of inhibition was recorded in the presence of free
flavonoid fraction of the plant extract against T.
rubrum and T. terrestre, which were the most
susceptible fungus for all the extracts tested (Jain
Mycopath (2009) 7(1): 51-57
54 Fardos M. Bokhari
et al., 2004). Lemmon grass extract has shown
itself to be among the most significant of these
newly uncovered natural, nontoxic therapies, and
has proven itself to be one of the most important
antimicrobial agent successfully used for
treatments of all kinds of infections arising from
fungi, virus, bacteria, parasites, and other
microscopic invaders (Mohamed et al., 2006).
The methanol extracts of lantana (leaves and
flowers) showed antifungal activity (20 mm)
against M. gypseum, T. mentagrophytes, M. canis,
and T. gypseum. On the contrary, olive extract
showed the lowest activity against all tested
dematophytes (8-10 mm). More activities by olive
leaves were recorded against plant pathogenic
fungi including, Alternaria solani, Botrytis cinerea
and Fusarium culmorum (Winkelhousen et al.,
2005). They added that the activity was attributed
to the presence of phenolic compounds which can
be hold a good promise as a natural fungicide
against common pathogens of crops. Nwachukwu
and Umechuruba (2006) found that Leaf extracts
of neem, basil, bitter leaf and paw-paw, which are
cheap and environmentally safe, are promising for
protecting African yam bean seeds against major
seed-borne fungi. Many of the herbs properties
can be traced back to the flavonoids that plant
contains. Similarly, Olive leaves contain
oleuropein, eleonic Acid and other qualities that
can be of benefit to treat humans dermatophytes.
In this research, the percentage of inhibition (Table
4) was calculated after comparing with
Griseovolvin (100% inhibition). The maximum
activity was obtained from lemon grass which was
ranged from 75-95%, followed by lantana extract
which inhibited the fungal growth by 50-80% and
nerium and basil extract decreased growth by 30-
50%. The lowest activity was recorded for olive
leaves which inhibited the growth by 20-33.3 %.
The activity index was calculated. It was ranged
from 65-69% for both lemon grass and lantana,
38-39% for basil and nerium and 27% for olive
leaves.
MICs of the six plant extracts were
calculated by using flurocin diacetate method
(Table 5). It was ranged from 1.0-1.5 µg/ml for
Griseofulvin. The MIC for the different plant
extracts were ranged from 25-75 for both lemon
grass, lantana and basil and from 100-175 µg/ml
for nerium and olive extract. The antifungal
activities of griseofulvin were determined by
Araújo et al. (2009) using broth microdilution
technique, against dermatophytes and the minimal
inhibitory concentrations (MICs) for Trichophyton
mentagrophytes, T. rubrum and Microsporum
canis were ranged from 0.03-1 µg/ml. It can be
concluded that, MICs calculated were greater than
that obtained for Griseofulvin. Further studies are
needed to determine the antifungal compound(s) in
such plant extract (isolation, separation and
identification) as well as its formulation to be
applicable as alternative methods to be used in
treatment of skin and skin structures diseases in
human and animal. Therefore, such results are of a
significant value that confirms the therapeutic
potency of some plants used in traditional
medicine. It should form a good basis for further
phytochemical and pharmacological investigation
(Prasad et al., 2009). Useful antimicrobial
phytochemicals are: phenolics and polyphenols
(such as simple phenols and phenolic acids,
quinones, flavones, flavonoids, and flavonols.
tannins, coumarins); terpenoids and essential oils;
alkaloids; lectins and polypeptides; plus other
compounds. The mechanisms thought to be
responsible for these phytochemicals against
microorganisims vary and depend on these
compounds (Aly and Bafiel, 2008). Their
mechanism of actions may include enzyme
inhibition by the oxidized compounds, and act as a
source of stable free radical and often leading to
inactivation of the protein and loss of function.
They have the ability to complex with extracellular
and soluble proteins and to complex with bacterial
cell walls and disrupt microbial membranes (Ali,
1999), some have ability to intercalate with DNA,
formation of ion channels in the microbial
membrane, competitive inhibition of adhesion of
microbial proteins to host polysaccharide receptors
(Cowan, 1999).
Conclusion
The ultimate conclusion of this study
supports the traditional medicine use of different
plant extracts in treating different infections
caused by pathogenic fungi in Saudi Arabia either
by using a single or combined extracts. It also
suggests that a great attention should be paid to
medicinal plants which are found to have plenty of
pharmacological properties that could be
sufficiently better when considering a natural food
and feed additives to improve human and animal
health.
Mycopath (2009) 7(1): 51-57
Antifungal activity of some medicinal plants 55
Table 1: Common and scientific names of some plants used to detect their antifungal activities in vitro.
Used part Family Scientific name Common name
Stalk and leaves Gramineae Oymbopogon citrates Lemon grass
Leaves and flower Verbenaceae Lantana camara Lantana
leaves Apocynaceae Nerium oleander Nerium
Stem and leaves Labiate
Ocimum basilicumBasil
leaves Oleaceae Olea europaea Olive
Table 2: The % of fungal inhibition of aqueous and organic extract of different plants at concentration
100 µg/ml compared to Griseofulvin (100% inhibition) against Trichophyton rubrum.
Type of the extract chloroform n-butanol Ethyl
acetate
Diethyl
ether
Aqueous
extract
(hot)
Water
extract
(cold)
Methanol
Extract
(control)
Used plant
80 84 85 80 77 66 90 Lemon grass
60 80 85 80 32 44 88 Lantana
30 67 80 80 42 32 85 Nerium
80 57 73 44 30 24 73 Basil
77 55 75 67 30 26 75 Olive
The results were compared with that obtained for Griseofulvin which considered 100% inhibition.
Table 3: The antifungal activity of methanolic extract (diameter of the inhibition zone, mm) of different
plant extracts against different pathogenic fungi.
Diameter of the inhibition zone (mm) olive Basil Nerium Lantana Lemon
grass
GSF
control
Pathogenic fungi
10 ±0.6 12 ±0.7 15 ±0.7 20 ±0.9 30 ±1.5 40 ± 2.5 Microsporum canis
10±0.5 15 ±0.6 14 ±0.8 20 ±0.7 22 ±0.5 40 ± 1.5 Microsporum gypseum,
10 ±0.4 16 ±0.5 16 ±0,6 20 ±0.6 38 ±1.4 40 ± 0.9 Trichophyton
mentagrophytes
8 ±0.5 20 ±0.3 20 ±0.9 20 ±1.5 30 ±1.6 40 ±0.9 Trichophyton verrucosum
10± 0.4 12 ±0.5 14 ±0.4 18 ±0.9 30 ±1.5 38 ±0.5 Epidermophyton floccosum
9.5 15 16 19.5 30 39.5 Activity Index*
GSF: Griseofulvin, *Activity index was calculated as the mean value of net zones of inhibition (mm)
against the five fungal test strains
Table 4: The % inhibition of the of different plant extracts compared to Griseofulvin (100% inhibition)
against different dermatophytes. Inhibition compared to Griseofulvin% olive Basil Nerium Lantana Lemon
grass
Griseo-
fulvin
Pathogenic fungi
25.0 30.0 37.5 50.0 75.0 100 Microsporum canis
25.0 37.5 35.0 80.0 55.0 100 Microsporum gypseum,
33.3 42.4 33.3 66.6 95.0 100 Trichophyton rubrum
20.0 50.0 50.0 75.0 75.0 100 T. verrucosum
26.3 31.5 36.0 78.9 79.0 100 Epidermophyton floccosum
27.0 39 38.0 69.0 65.0 100 Activity Index
*Activity index was calculated as the mean value of net zones of inhibition (mm) against the five fungal
test strains.
Mycopath (2009) 7(1): 51-57
56 Fardos M. Bokhari
Table 5: Minimal inhibitory concentration (MIC) µg/ml of different plant extract using Fluorescein
diacetate method and compared with Griseofulvin.
Minimal inhibitory concentration (MIC)
(µg/ml)
Dermatophytes
GSF Lemon
grass lantana Nerium Basil Olive
Microsporum canis 1.5 ± 0.3 25 ± 3.6 50 ± 6.1 100 ±11.5 50 ±7.0 175 ± 3.0
Microsporum gypseum 1.0 ±0.1 25 ± 4.4 50 ± 4.1 100 ±14.0 50 ±6.0 175 ±7.8
Trichophyton rubrum 1.5 ± 0.5 25 ± 2.9 75 ± 7.0 100 ±8.0 125 ±11.0 150 ±12.0
T. mentagrophytes 1.5 ± 0.7 25 ± 5.2 50 ±5.0 125 ±6.3 50±3.0 100 ±5.9
T. verrucosum 1.0 ± 0.4 50 ± 3,9 50 ±4.4 125±11.1 75±4.2 125 ±13.0
GSF: Griseofulvin , All the values given, are the mean value of three reading.
Acknowledgement
The author appreciates the technical assistance of Dr. Magda Mohamed Aly, Biology Department, Faculty
of Science, King Abdel Aziz University, in this research
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... Numerous scientists have worked on the antifungal activity of B. coriacea on several fungi strains using the plant extract (Bokhari, 2009). Bokhari (2009) found that of B. coriacea hexane and methanol fractions inhibited the proliferation of A. niger and Trichoderm viride. ...
... Numerous scientists have worked on the antifungal activity of B. coriacea on several fungi strains using the plant extract (Bokhari, 2009). Bokhari (2009) found that of B. coriacea hexane and methanol fractions inhibited the proliferation of A. niger and Trichoderm viride. ...
... Previous studies showed that the Cymbopogon citrates, Lantana camara, Nerium oleander, Ocimum basilicum and Olea europaea leave extracts, with either water or different organic solvent, were prepared to investigate the antifungal activity. The methanol extract of lemon grass, lanta and nerium followed by their ethyl acetate extracts showed the highest activities against Trichophyton rubrum [3] . Fungal species such as Alternaria alternata, A. clamydophor, Aspergillus niger, A. flavus, Rhizopus oryzae, Rhizopus spp., Mucor spp., Fusarium spp., Drechslera australiensis, Penicillium spp., Curvularia lunata and Cladosporium, that were isolated from stored grains of wheat, were effectively controlled by the use of Mancozeb [11] . ...
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Background of study: Sclerotium rolfsii is a destructive plant pathogen causes diseases in plants and many economical important crops. This is a soil born plant pathogen therefore its control using commercial fungicides is not a significant method as these fungicides are non biodegradable and comparatively expensive. Use of plants and their products to manage microbial growth especially fungus has been found effective and safe due to naturally occurring potent plant metabolites. Syzygium cumini and Melia azedarach are two important therapeutic plants that possess a wide range of biological properties. Methodology: The present study was carried out to manage this fungal pathogen using the two medicinal plant extracts. Methanolic leaf extracts of Syzigium cumini and Melia azedarach were used to control the fungal growth of S. rolfsii. In vitro antifungal bioassay against S. rolfsii was conducted using different concentrations (0%, 1%, 2%, 3%, 4% and 5%) of plant extracts using malt extract broth as culture media. Results: Results of the present study were found to be significant in reducing the fungal growth. Different concentrations of leaf extracts of S. cumini and M. azedarach reduced fungal biomass up to 97% and 86% respectively over the control. The high concentrations (4, 5%) of the S. cumini leaf extract showed great decrease in fungal biomass production. Similarly, high concentrations of M. azedarach found to be effective against the fungal growth than the control. Conclusion: This study concludes that Sclerotium rolfsii can be efficiently managed using methanolic leaf extracts of medicinal plants hence it is significant biological method to control S. rolfsii
... The mechanisms that are the reason behind the efficiency of medicinal plant extracts in inhibiting microorganisms differ and depend on the presence of these compounds [19] . Some effective compounds work to inhibit the action of enzymes through oxidizing compounds or by acting on as a source of stable free radicals, which ultimately lead to the production of proteins in an inactive state, losing their basic function [20] . ...
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Medicinal plants have shown an important role in treating many different diseases, and the world still depends on many of these plants in primary and advanced health care. These plants have been used as important sources for treating many types of pathogenic fungi. In the current study, the leaves of the S. monoica plant were extracted using absolute ethanol (99%). The components of the ethanolic extract of the leaves of the S. monoica plant were analyzed using the GC-Mass technique. The effectiveness of this extract was evaluated and the value of the minimum inhibitory concentration (MIC) was estimated as an antifungal agent. Candida albicans species. The results showed that the ethanolic content of S. monoica leaves contains many active compounds, including: Stigmasterol, 9,12,15-Octadecatrienoic acid, 2,3-dihydroxypropyl ester, (Z, Z, Z), Phenol, 2,2'-methylenebis[6-(1,1-dimethylethyl)-4-methyl, 6-Hydroxy-4,4,7a-trimethyl-5,6,7,7a-tetrahydrobenzofuran-2(4H)-one, Pterin-6-carboxylic acid, Glycine, N,N-dimethyl-methyl ester, Acetyl turicine, 6-Hydroxy-4,4,7a-trimethyl-5,6,7,7a-tetrahydrobenzofuran-2(4H)-one, Phenol, 2,2'-methylenebis[6-(1,1-dimethylethyl)-4-methyl. The results also showed that the ethanolic extract has the ability to inhibit the growth of Candida albicans fungi. It was observed that the diameters of inhibition of the fungal colonies decreased with the increase in the concentration of the ethanolic extract used, as the value of the minimum inhibitory concentration of the ethanolic extract reached 0.8 mg/ml towards these fungi. Therefore, it is possible to use the S. monoica plant as a natural source of treatment for many disease-causing fungi.
... Nowadays 41 species of dermatophytes were identified (Gharachorlou et al., 2011). These fungi are distributed worldwide with various degrees (Coelho et al., 2011;Woodfolk, 2005;Bokhari, 2009). These fungi are both keratinophillic and keratinolytic (Blanco and Garcia, 2008;Shrivastav et al., 2013). ...
... Tinea corporis caused by M. gypseumhas also been reported in aids patients (Giudice et al., 2012). The plant is also found to be potent against numerous fungi responsible for dermatophytosis (Bokhari, 2009). ...
Article
Medicinal plants have been a part of human history for thousands of years and are still used as healthcare throughout the world. The current research aims to explore the chemical constituents of the methanol soluble extract (LC-Me) and petroleum ether soluble fraction (LCM-PES) from the leaves of Lantana camara Linn by GC/ GC-MS. This chemical analysis revealed the existence of 16 and 23 phytoconstituents in LC-Me and LCM-PES respectively. The major constituents in LC-Me were found to beethyl 9,12,15-octadecatrienoate (31.9%), hexadecanoic acid, ethyl ester (12.6%), n-hexadecanoic acid (11.1%), linoleic acid ethyl ester (9.1%), squalene (8.7%), di-n-octyl phthalate (6.2%), 9,12-octadecadienoic acid (Z,Z)- (4.2%), (E)-9-octadecenoic acid ethyl ester (2.7%) andcyclopropanebutanoicacid,2-[[2-[[2-[(2-pentylcyclopropyl)methyl]cyclopropyl]methyl]cyclopropyl]methyl]-, methyl ester (2.3%). The chief bioactive compounds in petroleum ether soluble fraction were found to beandrost-8-en-3-ol, 4,4,14α-trimethyl-17-(2-bromo-1-methylethyl (57.9%), 14,17-nor-3,21-dioxo-β-amyrin, 17,18-didehydro-3-dehydroxy- (13.0%), barringtogenol B (2.5%), olean-12-ene-3,16,21,22,28-pentol, 21-(2-methyl-2-butenoate), [3β,16α,21β(Z),22α]-(1.7%),perhydrocyclopropa[e]azulene-4,5,6-triol, 1,1,4,6-tetramethyl (1.7%), ethyl iso-allocholate (1.6%) and 1,2-benzenedicarboxylic acid, diisooctyl ester (1.6%). Both the extract and its fraction have exhibited very significant antibacterial, antifungal,mosquito repellent and larvicidal propertiesoriginated by numerous bioactive metabolites. Twenty eight (20 Gram-positive and 8 Gram-negative) bacteria were tested against LC.Me and LCM-PESwith noteworthy zone of inhibition.The significant in vitro antifungal activity was observed against fifteen fungi in LC-Me and LCM-PES. Very robust initial repellency was observed for LC-Me and LCM-PES (94% and 80% respectively) against the dengue-carrying mosquito (Aedes aegypti) at 2% concentration. The extract and its fraction were also found to be an efficient larvicidal agent against fourth-stage larvae of Aedes aegypti. The effective larvicidal property was noted in methanol soluble extract as compared topetroleum ether soluble fraction and standard with LC50value of 20 and 400 ppm respectively.
... The choice of solvent significantly affects the antimicrobial activity (AA) of an extract. This variability is likely due to differences in the solubility of various phytochemicals in distinct solvents, influenced by their relative polarities and solubilities, as reported in several studies (Al-Zubaydi et al., 2009;Boklari, 2009;Bakht et al., 2011). While water was traditionally employed for extraction by traditional healers, investigation indicates that the extracting solvent plays a crucial role when analyzing the pharmaceutical properties of a medicinal plant (Parekh et al., 2005). ...
... respectively. Bokhari,[19]eported that methanol extract and ethyl extract of lemon grass (Cymbopogon citrates DC.), lantana (Lantana camara L.), nerium (Nerium oleander L) basil (Ocimumbasilicum L.) and olive leaves (Oleaeuropaea L.) showed highest activities against Trichophyton rubrum followed by Microsporumcanis, Micosporum gypseum, and Trichophyton Mentagrophytes. Diliget al.[20] conducted a study of antifungal activity with twenty different medicinal plants and result showed that garlic juice and methanol extract of calamansi were inhibitory to Microsporumcanis and Trichophytonrubrum. ...
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Article History Background:Dermato phytosis is most common superficial skin infection and dermatophytes are fungi that invade within keratinized tissues; skin, hair and nails.In many studies reported that some medicinal plant are very useful to treat various skin disease included dermatophyte, because these medicinal plants are natural so have low cost, high availability, few side effects and valuable resources. Objective: To evaluate the antifungal activity of Melaleuca Alternifolia, Zingiber officinale, Allium sativum, Azadirachtaindica, Citrus limonum, Curcuma longa, and Cocosnucifera against the different dermatophytes causing skin infections. Methods: The Melaleuca Alternifolia (tea tree oil), Azadirachtaindica (neem oil), Cocosnucifera (coconut oil) and fresh juice of Citruslimonum (Lemon) and aqueous extracts of Zingiberofficinale, Alliumsativum and Curcumalonga were explored for antifungal susceptibility testing as per CLSI guidelines by agar well diffusion method. Results: Anti-fungal potentials of the oils and aqueous extracts of different medicinal plants were tested against Trichophyton Mentagrophytes, T. rubrum, T. tonsurans, T. verrucosum, Epidermophyton Floccosum, Microsporum gypseum, M. canis. All the seven dermatophytes were susceptible to Melaleuca Alternifolia, Zingiber officinale and Allium sativum, showed inhibitory zone ranges from 40±2.0mm to 45±2.0mm. Whereas, Azadirachta indica showed inhibitory zone ranges from 18±2.0mm to 35±2.0mm for all the seven dermatophytes followed by Citrus limonum. On the contrary Curcuma longa and Cocosnucifera not effective against any tested dermatophytes. Conclusion: The current research provides a scientific validation for the use of these medicinal plants in the treatment of dermatophytic infection and could be used in future for dermatophytic infection and other skin infection.
... 42 Reports have found the efficiency of phytochemicals in stimulating cell cycle arrest and death, inhibiting the growth of the tumor in mice and sensitizing cancer to chemotherapy and radiotherapy in humans. 43 7,[22][23][24][25][26] Oleandrin and its cardiac glycoside derivatives suppress the STAT-3 signaling pathway and thus inhibit invasion. 44 ...
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Cancer is a heterogeneous disease and ranks among the most pressing health concerns faced by humans and requires a proactive treatment approach. Plants are a rich source of compounds and offer a promising avenue for cancer research. Chemotherapy has so far been effective, but it comes with some very unpleasant side effects. Nerium oleander, an evergreen plant cultivated throughout the world, has many metabolites, including cardiac glycosides, phenols, saponins and terpenoids. The plant and its derivatives have been an essential component of traditional medicine for treating several ailments from the beginning of time, notably cancer, diabetes mellitus, asthma, and cardiac disease. However, the scientific community has not gone much further into the information. This review aims to understand the therapeutic applications of N. oleander, focusing on cancer. The leaf extract, anvirzel and PBI-05204 has entered clinical trials and other derivates like oleandrin and breast in are still under in-vitro and in-vivo studies. In order to combat cancer, the plant operates on several cancer-related signaling pathways, including the Akt mTOR downstream pathway.
... The choice of solvent significantly affects the antimicrobial activity (AA) of an extract. This variability is likely due to differences in the solubility of various phytochemicals in distinct solvents, influenced by their relative polarities and solubilities, as reported in several studies (Al-Zubaydi et al., 2009;Boklari, 2009;Bakht et al., 2011). While water was traditionally employed for extraction by traditional healers, investigation indicates that the extracting solvent plays a crucial role when analyzing the pharmaceutical properties of a medicinal plant (Parekh et al., 2005). ...
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The use of antibiotics in the aquaculture leads to antibiotic-resistant aquatic pathogens. Plant-derived medications are gaining traction due to their perceived safety and efficacy. Medicinal plants show promise in combatting infections and minimizing adverse effects. Aquatic weeds produce compounds effective against bacterial pathogens. India utilizes traditional medicinal plants, and seaweed exploration offers potential for therapeutic drug development. Extracting active compounds from aquatic plants can uncover their antimicrobial potential. The study aims to evaluate antimicrobial potential in Myriophyllum spicatum extracts against fish bacterial pathogens, using various solvents. Methanolic extract exhibits the highest antibacterial activity, emphasizing the effect of various solvents against different fish diseases. Natural hydrophytic plant extracts are gaining interest as antimicrobials to combat foodborne diseases and reduce reliance on synthetic drugs. Myriophyllum spicatum exhibits potential as a natural remedy for aquaculture infectious diseases, showing promise against a spectrum of bacteria and aquaculture-related pathogens.
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Solanum scabrum, also known as garden huckleberry or African nightshade, is a plant in the Solanaceae family with an uncertain geographical origin attributed to Africa by Linnaeus but also found in North America and naturalized in many countries. In Africa, it is cultivated as a leafy vegetable and for berry dye. The broad-leafed African nightshade, locally called mangeh/kumbi, is widely used in West, Central, and East Africa for its highly nutritious leaves rich in proteins, iron, ascorbic acid, and riboflavin, serving as an essential food source for impoverished communities. This study was carried out to examine the antibacterial and antifungal activities of Solanum scabrum (Mambila mange) on Staphylococcus aureus, Salmonella sp, Aspergillus fumigatus and Candida albicans. The plant leaves were dried under a shade, powdered and extracted using sterile distilled water. Antimicrobial susceptibility testing in vitro was carried out through the Agar well diffusion technique, Minimum Inhibitory Concentration (MIC) and Minimum Fungicidal Concentration (MFC). Phytochemical screening of the extract revealed the presence of secondary compounds such as alkaloids, flavonoids, steroids, tannins, phenols, saponins and proteins. The percentage yield of the extract was calculated from the (200g) of plant raw powder with 6.6 g giving a percentage yield of 3.3%. The antimicrobial activities of the extract exhibited significant antimicrobial effects against tested bacteria (Staphylococcus aureus and Salmonella species) and fungi (Aspergillus fumigatus and Candida albicans). The one-way ANOVA analysis showed a significant difference between the concentration of the extract as the concentration (25mg/mL, 50mg/mL, 100mg/mL for bacteria and 200mg/mL, 400mg/mL, 800mg/mL for fungi) increased the zones of inhibition of the bacterial and fungal growth increased at level of significance P<0.05. The finding from this research supports the use of the plant in traditional medicine to treat Aspergillosis and Salmonella infections.
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The main objective of this work is to fingerprint some selected plant germplasm along the Western Red Sea coast of Sinai. Selection is based on the relative economic importance of these plants on the medicinal and pharmaceutical levels. Molecular markers such as RAPD, ISSR and AFLP technologies were used in this work to detect genetic diversity of the selected medicinal plants. The study showed that taxonomical locations can be distinguished for each subspecies (with as low as 0 to 1% polymorphism using AMOVA analysis) according to its molecular fingerprint but it cannot be recognized as a different subspecies.
Article
Antidermatophytic activity of water extract, methanol extract, free and bound flavonoids of different parts of Brassica campestris, Trigonella foenum-graecum, Pisum sativum and Camellia sinensis were evaluated against four dermatophytes, namely Trichophyton rubrum, T. simii, T. terrestre and Chrysosporium indicum in vitro conditions. The results were compared with standard antimycotic drug griseofulvin/ketoconazole. Brassica-flowers showed excellent antidermatophytic properties as compared to other plant parts. Among all the extracts tested, free and bound flavonoid fractions showed greater fungicidal peroperties. Maximum zone of inhibition was recorded in the presence of free flavonoid fraction of Brassica-flowers against T. rubrum. T. terrestre was found to be most susceptible fungus for all the extracts tested.
Article
usarium oxysporum Shelct., Macrophomina phaseolina (Tassi) Goid., Rhizoctonia solani Kühn and Sclerotium rolfsii Sacc. were isolated from infected roots and basal stem parts of guar plants collected from different localities in Egypt. R. solani and S. rolfsii were the most pathogenic fungi in pathogenicity trials, whereas M. phaseolina was the least. Topsin M and Vitavax/Thiram as well as clove essential oil (4000 ppm) have completely inhibited the mycelial growth of the four fungi. In contrast, bauhinia, damsis, lemon grass and marjoram wastes (3 g/l media) were the least effective treatments in this respect. Moreover, the two tested fungicides, as well as lemon grass and clove oils (4000 ppm) were the superior treatments against sclerotial formation of M. phaseolina, R. solani and S. rolfsii. In greenhouse trials, fungicides and essential oils, applied as seed dressers, completely reduced percentages of damping-off in soil infested with M. phaseolina . Whereas, Topsin M and clove oil (F. oxysporum ) as well as Topsin M and Vitavax/Thiram (R. solani ) were superior against pre- and post- emergence, respectively. Bauhinia and damsis wastes recorded (62.7% and 69.0%) and 100% reduction in pre- and post- emergence caused by F. oxysporum , respectively. All treatments increased percentages of healthy survival seedlings for all fungi compared with their check. R. solani was the most affected fungus using all treatments, whereas S. rolfsii was the least affected one when plant wastes and essential oils were used. Under field conditions, all fungicides, essential oils and plant wastes have significantly minimized the percentages of damping-off incidence as well as, improved plant height and increased number of branches/plant. However, the two former treatments were the best ones while plant wastes were the least in this respect. Moreover, the same effect was realized as for number of pods, pods weight and gum yield per plant with superiority to Topsin M and lemon grass oil. Key word: Damping-off, guar, management and natural products. Guar (Cyamopsis tetragonoloba L.) is a drought resistant annual legume plant which has been grown as an agricultural crop in India and Pakistan, where it is still commonly used as food and in animal feeding. Guar seeds are considered as an important source of gum (Ahmed, 1956) which represents 11-23 to 23-26% of seeds
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There is a renewed interest in the antimicrobial properties of spices. In vitro activities of several ground spices, their water and alcohol extracts, and their essential oils have been demonstrated in culture media. Studies in the last decade confirm growth inhibition of gram positive and gram negative food borne bacteria, yeast and mold by garlic, onion, cinnamon, cloves, thyme, sage and other spices. Effects in foods are limited to observations in pickles, bread, rice, and meat products. In general, higher spice levels are required to effect inhibition in foods than in culture media. Fat, protein, and water contents in foods affect microbial resistance as does salt content. Very few studies report on the effect of spices on spores, and on microbial inhibition in conjunction with preservatives and food processes. Of the recognized antimicrobial components in spices, the majority are phenol compounds with a molecular weight of 150 to 160 containing a hydroxyl group. Eugenol, carvacrol and thymol have been identified as the major antimicrobial compounds in cloves, cinnamon, sage and oregano.
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Sensitivity of strains of S. aureus, B. cereus, Pseudomonas sp. and S. typhimurium to sage was studied in nutrient broth and in foods. Inhibition was highest in broth (MIC of 0.0–1.0%), and diminished in rice (MIC of 0.4 to >2.5%), and chicken and noodles (MIC of 1.0 to >2.5%). Little or no inhibition was seen in meat at ≤2.5% of sage. In each growth medium B. cereus strains displayed the least resistance, followed by S. aureus, Pseudomonas sp., and S. typhimurium. Growth from spores of B. cereus was inhibited in a manner similar to that seen in vegetative cells. While antimicrobial activity of sage increased with increase in the volatile oil fraction, essential oils alone had limited inhibitory effect in broth, and no effect in foods. Salt and water levels in the food increased bacterial sensitivity, whereas fat and protein decreased it.