Effect of 1-MCP Treatment on Postharvest Quality of Chinese Kale
A trial was carried out to determine the effect of 1-MCP treatment on postharvest quality of Chinese Kale(Brassiea dboglohra bailey)stored in 10℃ with PE bag packaging.The results showed that the total chlorophyll,ascorbic acid,soluble protein content in leaf of Chinese Kale was 25,2 and 5 times that of the stem respectively,while the soluble sugar content of the stem was 4.5 times that of the leaf.After 20 d storage,the leaves turned yellow and the buds bloomed and dropped,with the nutrient quality declining.It was found that the contents of chlorophyll and ascorbic acid reduced more significantly than those of soluble sugar and soluble protein,and that all nutrient contents in the leaf declined more significantly than those in the stem.1-MCP(1.0 μL/L)treatment maintained the postharvest quality of Chinese Kale effectly,with the leaf remained green,buds opened partially and the weight loss retarded.1-MCP treatment significantly postponed the decrease of all nutrient contents in both the leaf and the stem.