Effects Of Different Storage Temperature And Package On The Quality Of Chinese Flowering Cabbage During Shelf-life

Chinese flowering cabbage is an important leafy vegetable and widely cultivated in southern China. It is perishable, following with leaf yellow, wilting, even decaying, resulting in short shelf-life and serious economic loss. Low temperature storage is the most effective way to maintain postharvest quality of Chinese flowering cabbage. At present, the most reported temperature for Chinese flowering cabbage storage is below 10?, while lower storage temperature needs expand more energy. Therefore, it is worthy to investigate the appropriate storage temperature and package to prolong the shelf-life of Chinese flowering cabbage.In this study, firstly using Chinese flowering cabbage variety 'Sijiu' as materials, the effect of four different storage temperature, including 10?, 15?, 20 ?and 25 ? on its appearance, physiological change and quality were determined. The results showed that Chinese flowering cabbage exhibited more serious leaf yellowing and quality deterioration accompanied with higher storage temperature. Comparing with the storage temperature of 20? and 25?, storage at 10? and 15? could delay the decline in the chlorophyll, vitamin C, soluble protein and total soluble sugar content, and maintained the quality of Chinese flowering cabbage effectively.Then the effect of four kinds of package, such as 0.04 mm PE(PE-0.04), 0.02 mm PE(PE-0.02), 0.01 mm PE(PE-0.01) and 0.04 mm PVC(PVC-0.04) on the quality of Chinese flowering cabbage stored at 15 ?were investigated. The results showed that among the four different package, PVC-0.04 was the most effective package to delay the increase in yellowing index and relative conductivity, and to reduce the desrease in chlorophyll fluorescence parameter Fv/Fm and contents of soluble solid(TSS), soluble sugar, protein and vitamin C(Vc), indicating that PVC-0.04 was more effective to maintain the postharvest quality of Chinese flowering cabbage and prolong its shelf-life.In summary, it is better for maintaining postharvest quality of Chinese flowering cabbage with storage at 15 combining with PVC?-0.04 package, which will provide data support and theoretical basis for improving postharvest technology of Chinese flowering cabbage preservation in the future.