Extracts from a broad spectrum of plant species contain substances that possess antitumor activity 1. The mortality data were subjected to probit analysis to determine the lethal concentrations lc 50 and lc 90 to kill 50 and 90 per cent of the treated larvae of the respective. You may choose to submit your manuscript as a single word or pdf file to be used in the. Antioxidant activity of some algerian medicinal plants. Natural products from medicinal plants, either as pure compounds or as standardized extracts, provide unlimited opportunities for new drug leads because of the unmatched availability of chemical diversity. From the data in table 1 shows that the tested plant extracts definitely affect the viability of pollen beetle m. Forty eight extracts from 38 medicinal plants distributed into 19 different plant families were evaluated for cytotoxic activity on mammalian cells llcmk2 cells as presented in table 1. Pdf nematicidal activity of plant extracts against the. This study provides the first report on the larvicidal activity of crude solvent extracts of different mosquitoes. Antioxidant activity in plant oil plant oils contain unsaturated fatty acids, which are most sensitive to oxidative degradation.
Antifeedant activity of plant extracts to an insect helopeltis theivora a. Nematicidal activity of plant extracts against the rootknot nematode, meloidogyne incognita article pdf available in the open natural products journal 21 october 2009 with 2,728 reads. The number of eggs hatched in control and treated were recorded and percentage of ovicidal activity calculated. Bioactive compound, plant extraction, isolation, herbal preparations, natural products abstract natural products from medicinal plants, either as pure compounds or as standardized extracts, provide unlimited opportunities for new drug leads because of the unmatched availability of chemical diversity. Extraction, isolation and characterization of bioactive. Ovicidal activity of plant extracts against litura. Quality of plant extract depends on plant material, choice of solvents and the extraction methods. Evaluation of larvicidal activity of medicinal plant. The plan of this work was to study the larvicidal activity of cassia occidentalis linn.
The results of antimicrobial activity showed that water and ethanol crude extracts were active on all the strains of pathogens tested at different concentrations, with ethanol extracts exerting more activity. Debnath department of pharmaceutical sciences, dibrugarh university, dibrugarh 786 004, india. Pdf larvicidal synergistic activity of plant extracts. Bioactive aqueous extracts of twelve yucatecan plants. Several reports have established the efficacy of plant extracts and essential. Materials and methods plant species and sample preparation. The focus of this research is the evaluation of the nematicidal activity of water extracts from pokeweed. While all the fractions showed considerable mortality in aphids, the most active was the butanol fraction from i.
Based on the preliminary screening, the effective plant extracts were further tested at a concentration of 0. Assessment of antioxidant activity of plant extracts by. Largescale screening of 239 traditional chinese medicinal plant. Antioxidant activity and cytotoxicity of the leaf and bark extracts of. The focus of this research is the evaluation of the nematicidal activity of water extracts from pokeweed phytolacca americana. Therefore, plant oils are widely used as a substrate for testing antioxidant. They transmit the parasites and pathogens which cause a deadly disease like filariasis, dengue, yellow fever, malaria, japanese encephalitis, chikungunya, and so. Santos 2, 1department of biology, college of arts and sciences cebu normal university, osmena boulevard, cebu city, philippines. The use of plant compounds to treat infection is an age. These results show that the aqueous extracts of five native plants of the. Chemical composition and antibacterial activity of essential. Plant extracts since many of the essential oils inhibited the growth of e. From the stock solution, concentrations activity are methanolic stem extracts of satureja hortensis.
Five plant species were investigated to evaluate their antibacterial activity against food poisoning bacteria including two strains of gram positive bacteria b. Euphorbia species 30% exhibited antiherpetic action. Antimicrobial activity, toxicity and phytochemical. Pdf larvicidal activity of medicinal plant extracts. Increasingly, natural products have potential for the treatment of cancer. The three bacteria used in the current study were all gramnegative. Biological activity of some plant extracts against pieris brassicae linn. Review cytotoxic studies of plant extracts cytotoxicity of plant extracts on both plant and animal test material is capturing scientific interest, as it can indicate their antitumor and anticarcinogenic potentials, which have always been a gateway for the development of novel anticancer drugs. The therapeutic indexes of these two plant species were 7.
Plants are collected either randomly or by following leads supplied by local healers in geographical areas where the plants are found. Notably, medicinal plant extracts may be a potential source for treatments of breast cancer. One hundred milligrams of each plant extract in 100 ll of hplc grade acetone was incorporated per g of freshly prepared meridic diet, to give 10% ww. Larvicidal activity of selected plant extracts against the dengue vector aedes aegypti mosquito pedro m. This is a pdf file of an unedited manuscript that has been accepted for. Pdf nematicidal activity of plant extracts against the root.
However, current research about the mechanisms of the anticancer potential of va. Evaluation of the larvicidal efficacy of five indigenous weeds against an. Baskaran abstract nematicidal activities of extracts from plants were assayed against meloidogyne incognita. Ten dif ferent plants were collected from in and around sivakasi area. Fresh or dried plant materials can be used as a source for the extraction of secondary. Biological screening of various medicinal plant extracts. Among the extracts, the maximum larvicidal activity was shown by the pe extract of l. Antibacterial activity of plant extracts used externally in traditional medicine. Vernonia amygdalina va is a woody shrub reported to have not only diverse therapeutic effects but also anticancer properties. In addition, plant extracts are also prepared by maceration or percolation of fresh green plants or dried powdered plant material in water andor organic solvent systems.
A brief summary of the experimental conditions for the various methods of extraction is shown in table 1. Challenges to obtain pure compounds low concentrations plant extracts showed moderate effects after 24 h of exposure. Antibacterial activity of medicinal plant extracts article pdf available in brazilian journal of microbiology 384. Pdf antibacterial activity of medicinal plant extracts. Biological activity of some plant extracts against pieris.
Guide for authors fitoterapia issn 0367326x elsevier. Larvicidal activity of some plant extracts against mosquitoes. Biological screening of various medicinal plant extracts for. Cytotoxic and antiviral activities of colombian medicinal. The results of antimicrobial activity showed that water and ethanol crude extracts. Efficacy of plant extracts in plant disease management. Larvicidal activity of some plant extracts against mosquitoes dr. Pdf plant extracts as potential mosquito larvicides. Effect of monstera adansonii on 4th instar larvae of culex quinquefasciatus.
Antimicrobial activity of some plant extracts against. The present study aimed at evaluating the in vitro antimicrobial activity of plant allium sativum, zingiber officinale, caryophyllus aromaticus, cymbopogon citratus, mikania glomerata and psidium guajava extracts against grampositive and gramnegative bacterial strains isolated from human infections. In vitro antidermatophytic activity and cytotoxicity of extracts derived. Ingestion toxicity of plant extracts to gbm larvae the ingestion toxicity of plant extracts to p. The cytotoxic activity of the extracts of cocculus hirsutus on mcf7 cells was investigated in vitro through mtt assay.
The effect of various plant extracts was measured on several important oxidation indicators. The medicinal plant extracts exhibited stronger antidermatophytic activity compared to the algae extracts. Phytochemical investigation and biological activity of leaves. Therefore, plant oils are widely used as a substrate for testing antioxidant activity. Larvicidal activity of selected plant extracts against the. New drugs from plant secondary metabolites are being developed and studied for their antibacterial and anticancer activities 5. All these extracts present a linear variation of the inhibition power with the added concentration of extract fig. Larvicidal activity of medicinal plant extracts against.
While all the fractions showed considerable mortality in. Breast cancer is currently the leading cause of cancerrelated deaths among women globally. Madhura mukadam department of zoology, gogate jogalekar college, ratnagiri, maharastra, india abstractmosquitoes are the major vector for the transmission of malaria, dengue fever, yellow fever, filariasis, schistosomiasis and japanese encephalitis. Insecticidal and repellent activity of some plant extracts. Oct 02, 2010 in addition, plant extracts are also prepared by maceration or percolation of fresh green plants or dried powdered plant material in water andor organic solvent systems. In general, the repellent activity was inversely related to concentration of plant extract. Biochemistry graduates to have results from their final. Identification of targets and mechanism of activity of plant extracts 5. Six extracts % representing 4 plant species 40% showed cytotoxic activity. Biochemistry graduates to have results from their final year.
In the present study, the plant extracts exhibited the presence of larvicidal activity table 1 which was a dose dependent effect. Ovicidal, larvicidal and antiovipositional activities of. The results showed antioxidant activity using dpph were found to be increased in a concentration dependent. The results showed that extracts of mint, lemon balm and coriander among others inhibited the growth of e. Larvicidal efficacy of plant extracts against the malarial. Antibacterial activity of plant extracts 247 brazilian journal of microbiology 2000 31. Larvicidal activity of plant extracts on aedes aegypti l article pdf available in asian pacific journal of tropical biomedicine 23. Antioxidant activity of the plant extracts were characterized by using dpph free radical scavenging method. Evaluation of some plant extracts for their nematicidal.
The full text of this article is available in pdf format. One such alternative tactic is the use of plant extracts. Antimicrobial activity of crude extracts of three medicinal. Nematicidal activity of plant extracts the open natu ral products jou rnal, 2009, vol ume 2 79 tive nematodes passed through the filte r and sank to the bot tom of the funnel stem. Issn larvicidal activity of monstera adansonii plant. Antioxidant and in vitro cytotoxic activity of extracts of. Evaluation of the cytotoxic activity of extracts from. The main action of plant extracts or oils as feed additives is improving the ecosystem of gastrointestinal microbiota through controlling potential pathogens and digestive capacity in the small intestine. Evaluation of some plant extracts for their nematicidal properties against rootknot nematode, meloidogyne incognita m. Antifeedant activity of plant extracts to an insect. In searching for natural products as potential antiviral agents, several medicinal plants from the south american folk medicine showed in vitro antiviral activity 24. The anticancer activities of vernonia amygdalina extract. Pdf larvicidal activity of medicinal plant extracts against culex quinquefasciatus say. Antioxidant, antihypertensive, antihyperglycemic, and.
Studies on the antimicrobial activity of essential oils from t. The chemical examination follows after the isolation and biological screening of the active fraction1. Evaluation of the larvicidal efficacy of five indigenous weeds. Antibacterial activity of plant extracts used externally in traditional. These most active plant extracts were further fractionated into different solvent fractions on polarity basis and their insecticidal activity evaluated. Activity of antibiotics plus the plant extractfractionpurified compound. The main action of plant extracts or oils as feed additives is improving the ecosystem of gastrointestinal microbiota through controlling potential pathogens and digestive capacity in the small intestine hashemi and davoodi, 2011. While some plant extracts were comparatively more effective against all the three pathogens xanthomonas campestris, agrobacterium rhizogenes and aspergillus fumigatus. The cytotoxic activity of the extracts of cocculus hirsutus on mcf7 cells was investigated in. Pdf larvicidal activity of selected plant extracts and. Pdf larvicidal activity of plant extracts on aedes aegypti l. The larvicidal activity of the different selected plant extracts were found to be dose depended.
The decrease in absorbance for each extract in intervals of time is determined, and plotted. Larvicidal activities of three medicinal plant extracts were studied in the range of 4. Antibacterial activity of plant extracts and phytochemicals on. Phytochemical investigation and biological activity of. Studies on some plant extracts for their antimicrobial. The anticancer activities of vernonia amygdalina extract in. Bioassay for the larvicidal activity for their larvicidal activity against different species of was carried out using who procedure with slight mosquitoes 12, 1921. Insecticidal activity of plantderived extracts against. In searching for natural products as potential antiviral agents. Medicinal plant extracts with efflux inhibitory activity against gram. Anurag sharma and rakesh gupta abstract in the present study, aqueous extract of eight plants, namely azadirachta indica a.
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