保鲜袋对白菜贮藏保鲜研究

以青帮白菜为材料，采用无包装和保鲜袋2种方式对其进行包装处理，将经过处理的白菜单层有序摆放于自制的贮藏架上，通过对通风库内不同贮藏期白菜的生理品质指标进行测定，研究通风库中保鲜袋对贮藏白菜的保鲜效果。结果表明：经过保鲜袋包装处理能显著延缓白菜失重速率，降低 Vc含量损失，有效抑制粗纤维含量的生成；但蛋白质含量一直处于较低水平；贮藏中后期，白菜腐烂严重。

Effect of Freshness Protection Package on Storage and Preservation of Chinese Cabbage

The effect of freshness protection package on Chinese cabbage placed in the self-made shelf in ventilated storage was investigated, and the physiological-qual-ity indexes change were determined during the storage period. The results showed that the losses of weight and vitamin C were significantly reduced. The accumula-tion of crude fiber was effectively inhibited. But protein content was maintained at a low level and the rotting more serious of Chinese cabbage at the end of the stor-age packaged with the fresh keeping bags.