Preliminary phytochemical screening and antifungal activity of bilimbi and papaya leaf extract on fungal pathogens
Keywords:
Aqueous leaf extract, Phytochemicals, Antifungal activity, Disc diffusion, Bilimbi, PapayaAbstract
The present study has witnessed the phytochemical and antifungal property of bilimbi and papaya aqueous leaf extracts. Through the preliminary phytochemical screening, bilimbi leaf extract indicated the presence of flavonoids, saponins, coumarins, steroids and papaya leaf extract indicated the presence of terpenoids, saponins, coumarins and steroids. We isolated and identified fungal pathogens from root and seed of paddy plant inoculated on PDA medium. Disc diffusion method was used to measure the antifungal property of leaf extracts on 3 selected fungal genera such as Cylindrocarpon, Penicillium and Curvularia which were used as test organism. The extracts having antimicrobial activity has varied diameter of zone of inhibition among the tested organisms. Bilimbi leaf extract has antifungal activity against Cylindrocarpon, Penicillium with zone of inhibition of 10mm, and 5mm respectively and no markable activity against Curvularia. Papaya leaf extract has antifungal activity against Cylindrocarpon, Penicillium and Curvularia with zone of inhibition of 12mm, 5mm and 15mm respectively. The highest level of antifungal activity was recorded in papaya leaf extract which was active against all tested organisms that may be due to the presence of different types of phytochemicals. Plant metabolites are strong candidate contribute to develop new leads, combat the emerging issues of drug resistance.
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