期刊
FOOD HYDROCOLLOIDS
卷 63, 期 -, 页码 201-208出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodhyd.2016.08.041
关键词
Alginate; Mulberry pulp; Cellulose nanowhiskers; Nanocomposite films; Mechanical properties
资金
- Agriculture Research Center (ARC) program of the Ministry of Agriculture, Food and Rural Affairs, Korea [710003]
Cellulose fibers (CF) and cellulose nanowhiskers (CNW) were isolated from the mulberry pulp and blended with alginate to prepare alginate-based composite films. Different concentrations (2, 4, and 6 wt % based on alginate) of CF and CNW were used to test the effect of filler concentrations on the mechanical, water vapor barrier, and thermal properties of the alginate-based composite films. The CNW was in needle shape with the length of 200-400 nm and the diameter of 15-30 nm. The mechanical properties of alginate films were improved by blending with the CNW. The elastic modulus and tensile strength of alginate films were increased by 35% and 25%, respectively, however, water vapor permeability remained at the same level as the neat alginate films by blending 4 wt% of CNW. The CNW obtained from the mulberry pulp can be used as a reinforcing filler for the preparation of bionanocomposites for the development of completely biodegradable food packaging materials. (C) 2016 Elsevier Ltd. All rights reserved.
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