摘要
目的:ε-聚赖氨酸-壳聚糖-PLA复合保鲜膜对葡萄穗果保鲜效果的影响。方法:以夏黑葡萄为原料,采用2种不同组成的ε-聚赖氨酸-壳聚糖-PLA复合保鲜膜制袋包装夏黑葡萄穗果,并以纯PLA薄膜制袋包装的葡萄穗果作为空白对照,于4℃环境下贮藏,每隔2d测定各项保鲜指标,比较不同处理组葡萄穗果品质的变化情况。结果:ε-聚赖氨酸-壳聚糖-PLA复合保鲜膜可以改善葡萄穗果的贮藏品质和硬度,降低葡萄穗果失重率、腐烂率,减缓Vc含量的流失。结论:ε-聚赖氨酸-壳聚糖-PLA复合保鲜膜能够有效改善夏黑葡萄穗果的贮藏品质。
To investigate the effect ofε-polylysine-chitosan-PLA film on the preservation of grape panicle fruits,summer black grapes were packaged with two differentε-polylysine-chitosan-PLA composite preservative films,and the grapes packaged with pure PLA film were used as a blank control.All groups were stored at 4℃,and measured every 2 days in order to compare the changes in main quality factors of grapes quality in different groups.The results showed thatε-Polylysine-chitosan-PLA composite film can improve the storage quality and hardness of grapes,reduce the weight loss rate and decay rate of grapes,and slow down the loss of Vc content.
作者
梁端宾
刘峻
Liang Duanbin;Liu Jun(Shanghai People's Plastic Printing Factory Co.,Ltd.;Shanghai Institute of Quality Inspection and Technical Research,Light Industry and Chemical Product Quality Institute)
出处
《塑料包装》
CAS
2023年第2期35-39,共5页
Plastics Packaging