乙烯利复合包装材料对香蕉后熟品质的影响  

Effect of Ethephon-Containing Packaging Material on Quality of Banana during Postharvest Ripening

作　　者：陈亚婷 韩祥稳 周游[1] 曹崇江[1] CHEN Yating;HAN Xiangwen;ZHOU You;CAO Chongjiang(College of Food Science and Engineering,Nanjing University of Finance and Economics,Nanjing 210003,China)

机构地区：[1]南京财经大学食品科学与工程学院,江苏南京210003

出　　处：《食品科学》2020年第15期262-268,共7页Food Science

基　　金：“十三五”国家重点研发计划重点专项(2016YFD0400901)。

摘　　要：为解决乙烯利催熟香蕉的残留问题及实现果蔬的有效催熟,本实验制备了乙烯利复合包装材料,将青香蕉分别包装在乙烯利复合包装材料和普通包装材料(聚乙烯,对照)中,然后置于25℃、相对湿度70%条件下贮藏,每2 d取样测定香蕉的品质。结果表明:乙烯利复合包装组果肉呼吸强度、还原糖含量、丙二醛含量和果皮a*值、可溶性蛋白含量均高于对照组,而果实硬度显著低于对照组(P<0.05),说明乙烯利复合包装与对照组相比能够促进香蕉的后熟过程;另外,乙烯利复合包装中香蕉总酚含量高于对照组,而多酚氧化酶、过氧化物酶活力在贮藏末期低于对照组,说明乙烯利复合包装可能对香蕉的褐变有一定的抑制作用。因此,与普通包装相比,乙烯利复合包装材料能够通过释放乙烯促进香蕉的后熟进程。This study aimed to resolve the problem of ethephon residues and effectively promote the ripening of fruits and vegetables. A packaging material supplemented with ethephon was prepared to promote the ripening of banana. Samples were subjected to normal packaging or ethephon packaging(EP) and then storage for up to 8 days at 25 ℃ and 70% relative humidity. Every two days, respiratory intensity and hardness were determined to study the effects of the ethephonsupplemented packaging material on the ripening process and shelf life quality of banana. The results showed that respiratory intensity and the contents of reducing sugar and malondialdehyde(MDA) in the flesh, as well as the color parameter a* value and the content of soluble protein in the peel of EP treated samples were higher than those in control samples, while the hardness was significantly lower than that of the control group(P < 0.05), indicating that EP could promote the postharvest ripening process of banana when compared with ordinary packaging. In addition, the total phenol content of the experimental group was higher than that of the control group, while the activity of polyphenoloxidase(PPO) and peroxidase(POD) was lower than that of the control group, indicating that EP could have an inhibitory effect on the browning of banana peels. Therefore, the ethephon-supplemented packaging material can effectively promote the postharvest ripening of banana by promoting the release of ethylene.

关 键 词：香蕉 乙烯利 呼吸强度 丙二醛 总酚 

分 类 号：TS255.36[轻工技术与工程—农产品加工及贮藏工程]