纤维素
淀粉
材料科学
结晶度
食品包装
极限抗拉强度
生物复合材料
热稳定性
磷酸
复合数
化学工程
复合材料
核化学
食品科学
化学
冶金
工程类
作者
Farah Nadia Omar,Halimatun Saadiah Hafid,Jiangyu Zhu,Ezyana Kamal Bahrin,Farah Zeehan Mohd Nadzri,Minato Wakisaka
标识
DOI:10.1016/j.mtcomm.2022.104392
摘要
Biocomposite starch film based on modified bamboo cellulose treated with phosphoric acid were evaluated for their application as food packaging materials in food industry. In this study, the neat starch, starch with a phosphorylated cellulose–chlorine extract (St–BamChl-PO4), and starch with a phosphorylated cellulose–nitric acid extract (St–BamHNO3-PO4) were mixed with glycerol using a casting process. Results showed that tensile strengths for both St–BamChl-PO4 and St–BamHNO3-PO4 were increased at 1.18 and 7.74-folds as compared to the neat starch. Meanwhile, the crystallinity index of St–BamChl-PO4 and St–BamHNO3-PO4 films were improved at 4.9 and 5.16-folds, respectively, without lowering the thermal stability. These indicated that the modification of hydroxyl groups from the bamboo cellulose with the phosphoryl group increased cellulose–starch compatibility. Also, St–BamChl-PO4 and St–BamHNO3-PO4 films showed enhanced UV absorption, demonstrating their potential use for UV protection. This study provides new insights into the functional improvement of starch films reinforced with treated cellulose for sustainable packaging applications.
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