室温下不同电商包装对荔枝保鲜效果的比较

Comparison of the Effects of Different E-commerce Packagings on the Preservation of Litchi at Room Temperature

摘要:

生鲜果蔬的电商包装方式对其保鲜效果至关重要。因此该研究以荔枝“仙进奉”为试验材料，探究在室温（28~29 ℃）条件下，新型保鲜纸箱与普通泡沫箱包装荔枝的品质变化规律。结果表明，两种包装形式均可延缓可溶性固形物（TSS）、可滴定酸（TA）、可溶性蛋白质及维生素C含量的变化，果实风味、营养成分维持较好，抑制了果皮褐变多酚氧化酶（PPO）、过氧化物酶（POD）酶活性的增加，减少了丙二醛（MDA）在物流运输过程中的积累。综合表明，在0~2 d内新型纸箱包装的荔枝在TSS、TA、维生素C等指标与普通泡沫箱包装差异不大，其2 d时新型纸箱的TSS、TA、维生素C含量分别为18.15 °Brix、0.6%及7.61 mg/100 g。与普通泡沫箱相比（MDA含量为0.07 μmol/g），新型保鲜纸箱MDA的含量极显著降低（0.04 μmol/g），荔枝果皮脂膜损伤减少。因此，在荔枝的短期贮藏中新型保鲜纸箱可替代普通泡沫箱作为电商物流包装材料，即具保鲜功能又环保可利用。

Abstract:

The e-commerce packaging of fresh fruits and vegetables is very important for their preservation. In this study, litchi "Xianjinfeng" was used as the test material, the quality changes of the litchi packed in a new type of fresh-keeping paper cardboard box and the ordinary foam box at room temperature (28~29 ℃) were examined. The results showed that both packaging forms could delay the changes in total soluble solids (TSS) content, titratable acid (TA), soluble protein content and vitamin C content, and maintain better fruit flavor and nutrients, inhibit the increases of polyphenol oxidase (PPO) and peroxidase (POD) activities, and decreased the accumulation of malondialdehyde (MDA) in the process of logistics transportation. The comprehensive results showed that there were no significant differences in the contents of TSS, TA and vitamin C between the new type of carton packaging and the ordinary foam packaging during 0~2 days of storage, with the contents of TSS, TA and vitamin C for the new type of carton being 18.15 °Brix, 0.6% and 7.45 mg/100 g. Compared with the ordinary foam box (MDA content 0.07 μmol/g), the litchi in the new carton had a significantly lower MDA content (0.04 μmol/g), and the lipid membrane of litchi pericarp was damaged to a lesser extent. Therefore, the new type of carton can be used as the e-commerce logistics packaging material for short-term storage of litchi to replace the ordinary foam carton .The new packaging material has the preservative function and is environmentally friendly and available.