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用臭氧激活的红纤维素薄膜与奇托混合,用于食用薄膜生产
Seyedeh Sedigheh Ebrahimi1, Yahya Hamzeh1, Alireza Ashori2
1Department of Wood and Paper Science and Technology, Faculty of Natural Resources, University of Tehran, Karaj, Iran.
International journal of biological macromolecules
|May 12, 2024
概括
甘包的臭氧预处理可增强再生纤维素膜的特性. 短时间的臭氧化改善了机械强度,而更长时间的处理提高了抗菌耐药性,改善了水果包装.
科学领域:
- 生物质价值化 生物质价值化
- 材料科学是一种材料科学.
- 食品包装 食品的包装
背景情况:
- 甘包和苏打包纸质是丰富的纤维素质材料.
- 从生物质中开发可持续和功能性包装对于减少环境影响至关重要.
- 再生纤维素薄膜有潜力成为传统包装的可生物降解替代品.
研究的目的:
- 研究臭氧预处理对甘包和苏打包纸纤维溶解的影响.
- 评估由臭氧化纤维生产的再生纤维素薄膜的性能.
- 评估基托桑添加对这些薄膜在食品包装应用中的性能的影响.
主要方法:
- 红纤维素材料经过各种时间 (20-120分钟) 的臭氧预处理.
- 纤维被溶解在氧化/尿素溶液中以获得纤维素溶液.
- 造再生纤维素薄膜,含有或不含有2%酸盐.
- 电影的特点是机械,物理,结构,热和抗菌性质.
主要成果:
- 臭氧预处理对纤维素溶解产量和薄膜特性产生了积极的影响.
- 短时间的臭氧化 (20分钟) 增强了机械强度,凝聚力和疏水性.
- 长时间的臭氧化 (120分钟) 优化了膜的连续性,胀和抗菌耐药性.
- 酸盐的添加改善了拉伸强度,刚性和水蒸气屏障特性,但增加了吸收水分.
结论:
- 臭氧预处理是一种有效的激活纤维素生物质的方法,用于再生纤维素膜的生产.
- 通过调整臭氧化时间和酸盐含量,可以根据特定的包装需求量身定制薄膜特性.
- 这些可再生薄膜显示出水果保护涂层的前景,延长收获后的质量.
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