Vermicompost and farmyard manure improves food quality, antioxidant and antibacterial potential of Cajanus cajan (L. Mill sp.) leaves
2017
Das, Subhasish | Hussain, Nazneen | Gagai, Bhāskarajyoti | Buragohain, Alak Kumar | Bhattacharya, Satya Sundar
BACKGROUND: Pigeon pea (Cajanus cajan) leaves are a good source of nutrition and health benefitting phenolic compounds. However, its importance has not yet been effectively addressed. Recently, a 2‐year field experiment was attempted in an alluvial soil to understand the role of various organic and inorganic fertilisers and their combinations not only on soil quality, but also on production of foremost phenolic compounds and imparting antioxidant and antibacterial properties in C. cajan under vermicompost treatments. RESULTS: Notable enhancements in crude protein, soluble carbohydrate, ash content and total flavonoid content were recorded in Cajanus leaves under vermicompost treatments. We detected a significant rise in carlinoside content in C. cajan leaves, which is known to reduce bilirubin concentration in hepatitis affected human blood. Farmyard manure treatments resulted in a high crude fibre content coupled with a substantially high concentration of total phenols, and chlorophyll. In addition, incorporation of vermicompost with or without inorganic fertiliser in the soil had a significant impact on antioxidant and antibacterial properties of C. cajan leaves. Above and beyond, farmyard manure and vermicompost positively influenced the physico‐chemical health of the soil. CONCLUSION: The present nutrient management scheme based on organic input not only induced a higher yield of C. cajan endowed with improved antioxidant and antibacterial properties, but also enhanced the production of various phenolic compounds. © 2016 Society of Chemical Industry
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