Moringa oliefera Lam (Moringa) has antimalarial, antioxidant, antimicrobial as well as nutritional properties. Different parts of Moringa was used as a folk medicine to cure certain diseases ranging from venomous bites, rheumatism, ascites, circulatory stimulant among. Previous studies showed that different parts of Moringa oleifera have shown various pharmacological properties. However, there is a gap where substantial information is to be updated in the area of antimalarial, antioxidant, antimicrobial effect of the plants. Nevertheless, some part of the plant such as leaves and fruits have been used as vegetables, which serve as an excellent source of vitamins, beta-carotene, calcium, iron, riboflavin and phenolic acid. Therefore, there is an affirmative action that the plant has a vast antimalarial, antioxidant, antimicrobial activity to cure different diseases.
Secondary metabolites in the Solanaceae group of plants influence human health. Hence fruits and beverages from Solanum torvum are becoming essential not only for their nutritional value but also for medicinal benefits. This study evaluates the antioxidant activity of the extract of fruit, leaf, and stem of S. torvum. Total phenolic and flavonoid contents were evaluated using the Folin-Ciocalteu method and AlCl 3 test, respectively. Antioxidant activities were assessed by DPPH radical scavenging and the ferric-reducing antioxidant power assays. The results showed that stem extracts accumulated significantly higher phenolic content and higher reducing ability than the extracts of fruit and leaf. Extracts of leaves contained significantly higher flavonoid content and higher antioxidant capacity towards DPPH than that of in extract of fruit and stem. This result suggests that extracts of stems exhibited a good reducing ability, whereas the extract of leaves displayed an excellent DPPH free radical scavenging ability.
This study investigated the phytochemical constituents and antifungal potential of Citrus limon peels using aqueous and methanol extracts against Fusarium oxysporum and Rhizopus stolonifer causing rots in water melon. The result of phytocemical screening revealed the presence of Saponin, Tannin, Phenols, Alkaloid and Flavanoid. Pathogenicity test conducted showed that F. oxysporum and R. stolonifer causes rots of Citrullus lanatus. The extracts inhibited the growth of F. oxysporum (76.67% and 60.00 %) methanol and aqueous respectively. R. stolonifer growth was inhibited (85.93% and 71.11%) methanol and aqueous extracts. The fungitoxicity of synthetic fungicide Benomyl was 95.56%. The methanol extracts has highest inhibitory activity than aqueous extract. The result of the findings indicates the Biofungicide potentials of Citrus limon peels as alternative to synthetic fungicide in management of phyto-pathogens of water lemon.
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