百里香酚
淀粉
抗氧化剂
DPPH
食品科学
化学
扫描电子显微镜
材料科学
复合数
核化学
化学工程
精油
有机化学
复合材料
工程类
作者
Fangyu Li,Shuo Mao,Xiaobin Zhou,Shuyi Li,Chengwen Lu,Tiehua Zhang
摘要
Summary This study aimed to develop a novel antioxidant film for food packaging based on Cyperus esculentus starch and thymol. The mechanical, physicochemical and antioxidant properties of composite films were investigated. The C. esculentus starch showed good film‐forming properties. Incorporating of thymol improved the elongation at break and ultraviolet barrier property of the films, meanwhile decreased the moisture content of the films. Scanning electron microscopy showed good compatibility between starch matrix and thymol. The formation of hydrogen bonds between starch and thymol was confirmed by Fourier transform infrared spectroscopy and X‐ray diffraction. The composite films (3% thymol) exhibited higher antioxidant with DPPH scavenging capacity values of 73.22 ± 2.05% compared with control films. This study provided a potential unconventional starch for the preparation of bioactive films.
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