The results showed that 16 extracts have antibacterial activity with more than 10 mm against a. Lymphocytes were exposed to each of three different herbal extracts at threeconcentrations 25, 50, and 100. Insecticidal and larvicidal activities of medicinal plant. The plant extracts were obtained by using ethanol and the concentration of the extract was 500600 mg l1 and the the inhibition zone was measured after 24 h at 30c.
Five plant species were investigated to evaluate their antibacterial activity against food poisoning bacteria including two strains of gram positive bacteria b. The focus of this research is the evaluation of the nematicidal activity of water extracts from pokeweed phytolacca americana. The cytotoxic activity of the extracts of cocculus hirsutus on mcf7 cells was investigated in vitro through mtt assay. 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. Mosquito is a vector of different diseases like malaria, filariasis and dengue fever. Mosquitoes in the larval stage are attractive targets for pesticides because mosquitoes breed in water, and thus, it is easy to deal with them in this habitat. Pdf larvicidal activity of selected plant extracts and. In particular,they have significant free radical scavenging activity. Among the plant extracts that showed antibacterial activity, the clo and met extracts of l. Comparative analysis of the antioxidant and freeradical. Antibacterial and antioxidant activity of traditional. Antimicrobial activity of selected medicinal plants against. Antibacterial activity of crude extracts of selected plants.
Antimicrobial activity, toxicity and phytochemical. Evaluation of the cytotoxic activity of extracts from. Biochemistry graduates to have results from their final year. Antioxidant activity of some plant extracts of the family.
Antibacterial and antioxidant activities of 8 aromatic plants from the balkan peninsula were studied. Phytochemical screening and larvicidal activity of peel. Bactericidal activities of disinfectants against vancomycinresistant enterococci. It has been increasing development of resistance to synthetic chemicals, so plant extracts may be the alternate source of mosquito control agent. Cytotoxic and genotoxic effects of inula viscosa leaf. Issn larvicidal activity of monstera adansonii plant. Antioxidant activity of the plant extracts were characterized by using dpph free radical scavenging method. The objective of this study was to determine the chemical composition and antibacterial activity of essential oils eos of tagetes minuta against three phytopathogenic bacteria pseudomonas savastanoi pv. Solvents diffuse into the solid plant tissues and solubilize compounds of similar polarity. Larvicidal activity of selected plant extracts against the dengue vector aedes aegypti mosquito pedro m. Larvicidal, insecticidal, brine shrimp cytotoxicity and. The chloroform, acetone, ethanol, methanol and aqueous peel extracts of arachis hypogaea were studied for its larvicidal activity against the mosquito vectors.
Antibacterial and antifungal activities from leaf extracts of. Chemical composition and larvicidal activity of plant. In the present study, we evaluated the potential of 5 selected plants to inhibit test bacteria by agar well diffusion assay and the result is shown in table 2. 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. The results showed that extracts of mint, lemon balm and coriander among others inhibited the growth of e. Phytochemical investigation and biological activity of. Minimal inhibitory concentration of metanoic extracts ranged from 6.
Comparative study of antioxidant properties and total. The free radical scavenging capacity of plant extracts was also studied using. Oregano extract was found to be the most effective in stabilizing lard, followed by thyme, dittany, marjoram and lavender extracts, in a decreasing. Pdf larvicidal activity of plant extracts on aedes aegypti l. Antioxidant activity of antiinflammatory plant extracts. Challenges to obtain pure compounds low concentrations extracts. The effect of various plant extracts was measured on several important oxidation indicators. Issn 23207078 larvicidal activity of lantana camara. Larvicidal efficacy of plant extracts against the malarial. Ten dif ferent plants were collected from in and around sivakasi area. Consequently, the search and study of plant extracts that have the highest antiradical and antioxidant activity aoa is a very urgent task. The plan of this work was to study the larvicidal activity of cassia occidentalis linn. Numerous works devoted to antioxidant activity of plant extracts are published.
They transmit the parasites and pathogens which cause a deadly disease like filariasis, dengue, yellow fever, malaria, japanese encephalitis, chikungunya, and so. Antioxidant activity in plant oil plant oils contain unsaturated fatty acids, which are most sensitive to oxidative degradation. Larvicidal activity of medicinal plant extracts against. Chemical composition and antibacterial activity of essential. Notably, medicinal plant extracts may be a potential source for treatments of breast cancer. Antibacterial activity of some plant extracts nihal dog ru oz 1, zuhal zeybek 1, ali karagoz 2 1 istanbul university, faculty of science, department of b iology, 344, vezneciler, istanbultu. However, current research about the mechanisms of the anti.
Efficacy of plant extracts in plant disease management. From the stock solution, concentrations activity are methanolic stem extracts of satureja hortensis. Antifeedant activity of plant extracts to an insect. The use of plant extracts with known antimicrobial properties, can be of great significance in therapeutic treatments. Baskaran abstract nematicidal activities of extracts from plants were assayed against meloidogyne incognita. Varoni 1,3,4, fr anco fraschini 2, lia rimondini 1. All these plant extracts were made free from solvent by steam distillation, concentrated by evaporation and were used for the larvicidal testing by standard procedure5. Pdf larvicidal activity of medicinal plant extracts.
Antioxidant, antihypertensive, antihyperglycemic, and. The analysis of bioactive compounds present in the plant extracts involving. Ali 2010 tested the cytotoxic activity of flower decoction of hibiscus rosa sinensis using a. In order to confirm this activity, we tested those extracts against clinical isolates of species that showed sensitivity to these extracts in the screening assay. Evaluation of some plant extracts for their nematicidal properties against rootknot nematode, meloidogyne incognita m.
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. Dec 19, 2016 total phenolic contents, free radical scavenging activities and antioxidant capacities of origanum onites extracts prepared using different methods were determined. Santos 2, 1department of biology, college of arts and sciences cebu normal university, osmena boulevard, cebu city, philippines. Ovicidal, larvicidal and antiovipositional activities of. Phytochemical and pharmacological evaluation of selected plants. 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. Studies on some plant extracts for their antimicrobial. Antibacterial activity of medicinal plant extracts article pdf available in brazilian journal of microbiology 384. Plot of absorbance fall with respect to the concentration of plant. The antioxidant activity measurements of ethanolic extracts, expressed as trolox equivalent antioxidant capacity teac are presented in table 3.
Effect of monstera adansonii on 4th instar larvae of culex quinquefasciatus. Antioxidant activity of some algerian medicinal plants. Free radical scavenging by the use of the abts radical. The bioactivity of plant extracts against representative. The results showed antioxidant activity using dpph were found to be increased in a concentration dependent. Antioxidant activity of herbaceous plant extracts protect. In order to extract different phenolic compounds from plants with a high degree of. Extracts from a broad spectrum of plant species contain substances that possess antitumor activity 1.
The use of conventional pesticides in the water sources, however, introduces many risks to people andor the environment. Pdf cytotoxic activity of a plant extract on cancer cells. Antibiotics free fulltext efficacy and mechanism of traditional. Pdf larvicidal synergistic activity of plant extracts. Larvicidal activity of selected plant extracts and their combination against the mosquito vectors culex quinquefasciatus and aedes aegypti. Evaluation of antibacterial activity of these plant extracts was recorded in table 2 and illustrated in fig.
The present study was carried out to evaluate the adulticidal, repellent, and larvicidal. The concentration of extracts in lard varied from 0. Effects of acidic methanolic and water extracts from herbaceous plants onh 2 o 2induced dna damage to lymphocytes. 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. Antibacterial activity of plant extracts and phytochemicals on antibioticresistant bacteria. Bioassay for the larvicidal activity for their larvicidal activity against different species of was carried out using who procedure with slight mosquitoes 12, 1921. Antimicrobial activity of selected medicinal plants. The chemical examination follows after the isolation and biological screening of the active fraction1. Extraction methods involve separation of medicinally active fractions of plant tissue from inactiveinert components by using selective solvents and extraction technology table 1. The present study was carried out to evaluate the adulticidal.
Radical scavenging activity was calculated using the following formula. Materials and methods plant species and sample preparation. They transmit the parasites and pathogens which cause a deadly disease like filariasis, dengue, yellow fever, malaria, japanese encephalitis, chikungunya, and so forth. These results show that the aqueous extracts of five native plants of the. Evaluation of some plant extracts for their nematicidal properties against root knot nematode, meloidogyne incognita m. Antibacterial activities of some borneo plant extracts. Insecticidal and repellent activity of some plant extracts. Therefore, plant oils are widely used as a substrate for testing antioxidant activity. Increasingly, natural products have potential for the treatment of cancer. Plant extracts since many of the essential oils inhibited the growth of e. Antibacterial activity of plants 719 effective extracts are considered, e.
One such alternative tactic is the use of plant extracts. Larvicidal activity of plant extracts used alone and in. These results suggest that all plant extracts are good inhibitors at low concentrations. Cuprac assay antioxidant activity was determined by the cuprac assay as reported elsewhere. Antimicrobial activity of some plant extracts against. In these works aoa are given in units % mg, mgml or mgg, that character. The aim of this study was to evaluate the antioxidant activity, screening the phytogenic chemical compounds, and to assess the alkaloids present in the e. Biological screening of various medicinal plant extracts for. 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. Antibacterial and antifungal activities of plant part extracts against four pathogenic bacteria two grampositive and negative and three pathogenic fungi were investigated by the agar disk diffusion method.
Evaluation of some plant extracts for their nematicidal. The repellent activity of methanol extracts from 23 aromatic medicinal plant species and a steam distilfate against starved ae. Phytochemical screening of the peel extracts showed the presence of bioactive compounds such as tannins, saponin. Association of antibiotics and plant extracts showed synergistic antibacterial activity against antibioticresistant bacteria. Various families of traditional medicinal plants have been scientifically tested for their antimicrobial activities and are presented in table 1. In the present study, the plant extracts exhibited the presence of larvicidal activity table 1 which was a dose dependent effect. Bioactive aqueous extracts of twelve yucatecan plants. Pdf antibacterial activity of medicinal plant extracts. Vernonia amygdalina va is a woody shrub reported to have not only diverse therapeutic effects but also anticancer properties. Pdf nematicidal activity of plant extracts against the root. Extraction, isolation and characterization of bioactive compounds. Objective to evaluate the larvicidal activity of plant extracts on aedes aegypti. Methods petroleum ether, chloroform and aqueous extracts obtained from acalypha indica.
Such results were different from data reported in literature. Breast cancer is currently the leading cause of cancerrelated deaths among women globally. The methanolic extract phyllanthus niruri stone breaker showed the maximum activity against staphylococcus sp. Nov 26, 20 the antioxidant activity of polyphenolic compounds in differentspecies showed higher polyphenolic content and antioxidant activity in allspecies, demonstrating that the tested species are a potent source of novelbioactive compounds with a wide range of medicinal properties. Antioxidant and in vitro cytotoxic activity of extracts of. Natural pesticides, especially those derived from plants, are more promising in this aspect. 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. Fresh leaves of eleven different plant species free from. Dna damage was induced by exposing lymphocytes to h 2 o 2 10.
Assessment of antioxidant activity of plant extracts by. Antioxidant activity was analyzed by using 2,2diphenyl1picrylhydrazylhydrate assay. Pdf plant extracts as potential mosquito larvicides. Ingestion toxicity of plant extracts to gbm larvae the ingestion toxicity of plant extracts to p. In recent years, use of environment friendly and biodegradable natural insecticides of plant origin have received renewed attention as agents for vector control because they are rich in bioactive chemicals, active against a limited number of species including specific target insects, and biodegradable. The extract exhibited moderate to outstanding larvicidal activity 100 to 28% at 100, 80, 70, 50, 40, 30, 20 and 10% concentrations respectively after 24 hours, showing 42% lc50. New drugs from plant secondary metabolites are being developed and studied for their antibacterial and anticancer activities 5. Cytoto xic activity of a plant extract on cancer cells enrico catalano 1, paolo maestri 2, andrea cochis 1, barbara az zimonti 1, ele na m. Antioxidant activity of some medicinal plant extracts on. All plant extracts showed moderate effects after 24 h of exposure. Evaluation of larvicidal activity of medicinal plant. Antimicrobial activity of crude extracts of three medicinal. Plant phenolic extracts as an effective strategy to control. Lipid oxidation in food systems can be caused by oxygen free.
Larvicidal activities of three medicinal plant extracts were studied in the range of 4. Antibacterial activity of plant extracts 247 brazilian journal of microbiology 2000 31. The leaves were washed thor oughly 2 to 3 times with running tap water, leaf material. Larvicidal activity of plant extracts against aedes aegypti 1217 caitied out using acetone 61 and petroleum ether 6080c, 61. Phytochemical investigation and biological activity of leaves. Antimicrobial activity of aqueous and organic extracts.
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