Radical-scavenging activity of cabbages and Chinese cabbages cultivated with organic and inorganic fertilizers

The radical-scavenging activity of cabbage and Chinese cabbage cultivated b y using organic and inorganic fertilizers were compared. Mixture of rapesee d oil cake, poultry feces and humus was used as organic fertilizer. The eff ect of composting with cowdung or rice straw on the radical-scavenging acti vity of cabbage was also investigated. The radical-scavenging activity was evaluated by measuring the decrease of 1,1-diphenyl-2-picrylhydrazyl detect ed at 517 nm by HPLC. Ascorbic acid content of cabbage and Chinese cabbage was also determined by HPLC. The radical-scavenging activity and ascorbic a cid content of cabbage and Chinese cabbage were not significantly different between the products grown by using organic and inorganic fertilizers. App lication of compost did not affect on the radical-scavenging activity and a scorbic acid content.