期刊
ENVIRONMENTAL TECHNOLOGY & INNOVATION
卷 23, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.eti.2021.101690
关键词
Laccase; Streptomyces coelicolor; Pectin; Chitosan; Blending film
资金
- Student Innovation Research and Entrepreneurship Training [201910307047Z]
- Fundamental Research Funds for the Central Universities, China [KYYZ202003]
This study prepared chitosan/high methoxyl citrus pectin film catalyzed by Streptomyces coelicolor and found that the film exhibited higher viscosity, better mechanical properties, and improved CO2 barrier performance under a certain catalyst concentration. The internal structure of the film was more uniform, showing promising application in food packaging.
This paper aims to prepare chitosan (CH)/high methoxyl citrus pectin (HMCP) film catalyzed by Streptomyces coelicolor (SLAC) and explore its properties. The properties of the film forming solution (FFS) and the as-prepared film were studied. The results showed that the FFS with 0.8 U 100 mL(-1) SLAC catalysis has higher viscosity and larger particle size; texture analysis showed that the film with 0.8 U 100 mL(-1) SLAC possessed the best mechanical properties; morphological and crystallinity analyses (SEM, XRD) demonstrated that the internal structure of the film with 0.8 U 100 mL(-1) SLAC was the most uniform. After adding SLAC, the film had better CO2 barrier performance. In conclusion, the properties of CH/HMCP blending film catalyzed by SLAC were improved and displayed promising application in food packaging. (C) 2021 Elsevier B.V. All rights reserved.
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