淀粉
多酚
抗氧化剂
食品科学
活性包装
抗菌剂
化学
微生物
食品包装
基质(化学分析)
细菌
生物化学
有机化学
色谱法
生物
遗传学
作者
Mingyue Feng,Long Yu,Peitao Zhu,Xin Zhou,Huan Liu,Yunyi Yang,Jiaqiao Zhou,Chengcheng Gao,Xianyang Bao,Pei Chen
标识
DOI:10.1016/j.carbpol.2018.05.043
摘要
Starch films incorporated with tea polyphenol (TP) were developed to produce active food packaging. The effect of the incorporation of TP with different content on the structure, physicochemical properties, antioxidant activity and antimicrobial activity of the starch films was systematically evaluated. Results showed that TP was well dispersed in the starch matrix, which induced a slight influence on the surface and barrier properties of the films. TP addition led to an important improvement in antioxidant capability, as well as inhibition efficiency against the microorganisms of S. aureus and E. coli. However, a decrease in mechanical properties of films was observed. Moreover, a new automatic counting method which combined the computer vision and machine learning algorithm was developed to identify and count the colonies, and the method performed much faster without subjective uncertainty.
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