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Position: Home > Articles > Effects of packaging materials and types on postharvest nutritional quality of mini Pakchoi Brassica chinensis International Journal of Agricultural and Biological Engineering 2016,9 (6)

Effects of packaging materials and types on postharvest nutritional quality of mini Pakchoi Brassica chinensis

作者：

Wu Shimin;Shu Feiya;Huang Danfeng

单位：

Minist Agr;Shanghai Jiao Tong Univ

关键词：

Brassica chinensis;packaging;vitamin C;chlorophyll;carotenoid;nitrate-nitrogen;SPINACH;STORAGE;CAROTENOIDS;ANTIOXIDANT;OLERACEAE;LEAVES

摘要：

The baby leaves of mini Pakchoi Brassica chinensis are gaining popularity due to its pleasant appearance, flavour, tender texture and nutrition. Effects of retail packaging on the nutritional quality of Brassica chinensis at 4 degrees C were studied. Samples were packaged using polyethylene bags (PE-B), polystyrene foam tray covered with polyethylene film (PE-C/PS-T), perforated oriented polypropylene bags (POPP-B) and biaxially oriented polystyrene box (BOPS-B). Weight losses, respiration rate, chlorophyll and carotenoid, vitamin C and nitrate were determined during storage period. After 10 d storage, the weight loss for samples packaged in PE-B was 0.89%, followed by PE-C/PS-T with weight losses of 6%. A significant reduction (> 10%) in moisture was observed for the samples packaged in POPP-B and BOPS-B. The variation in respiration rate during storage seemed to form a trend with a sharp decline up to the fourth day. The difference in the reduction of chlorophyll and carotenoid was not significant among the four packages. BOPS-B had a better protective effect on vitamin C loss. The nitrate concentration during storage was within the official limit.

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Effects of packaging materials and types on postharvest nutritional quality of mini Pakchoi Brassica chinensis

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国际农业与生物工程学报

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