Effects of organic amendment on antioxidant activity in Brassica chinensis
2008
Faridah, M. | Illani, Z.I | Aini, Z. | Zulkefli, M.(eds.), MARDI, GPO Box 12301, 50774 Kuala Lumpur (Malaysia). Strategic Resources Research Centre
A study was conducted to verify and compare the effect of organic amendment on the antioxidant activity in organically and conventionally grown Brassica chinensi. Eight different treatments (chicken dung, goat dung, bokashi, EM, bokashi mixed with EM, IMO, normal compost and chemical fertilizer) had been used in the study. The free radical DPPHscavenging activity method was used in the determination of the antioxidant activity. The highest antioxidant activity was observed in Brassica chinensis treated with bokashi mixed with EM (66.56%) while treatment using goat dung gave the lowest antioxidant activity (55.96%). No major differences in the antioxidant activity were found between organically and conventionally grown Brassica chinensis.
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