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透明的,塑化纤维素-甘油生物塑料用于食品包装应用
José J Benitez1, Pedro Florido-Moreno2, José M Porras-Vázquez3
1Instituto de Ciencia de Materiales de Sevilla, Centro Mixto CSIC-Universidad de Sevilla, Calle Americo Vespucio 49, Isla de la Cartuja, Sevilla 41092, Spain.
International journal of biological macromolecules
|June 7, 2024
概括
纤维素糖薄膜提供了有前途的可持续包装解决方案. 这些生物塑料具有出色的防脂和生物降解性能,非常适合面包制品,并减少对环境的影响.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 生物技术是生物技术.
背景情况:
- 纤维素是一种可再生的生物聚合物,具有可持续材料开发的潜力.
- 糖是一种广泛可用的,生物可降解的塑化剂.
- 开发基于纤维素的新材料对于减少对基于石油的塑料的依赖至关重要.
研究的目的:
- 为了合成和表征独立的纤维素-甘油薄膜.
- 评估光学,结构,机械,热,水力动力,屏障,迁移,防脂和生物降解性能.
- 评估这些薄膜作为可持续包装材料的潜力.
主要方法:
- 在三酸和三酸无水化物 (TFA:TFAA) 中溶解的纤维素-甘油混合物的滴滴造.
- 使用X射线衍射 (XRD) 和红外 (IR) 光谱学进行表征.
- 评估机械,热,水力动力,屏障,迁移,防脂和生物降解性能.
主要成果:
- 纤维素-甘油混合物显示无形结构和加强的H键网络.
- 糖作为塑化剂,保持了薄膜的透明度.
- 薄膜表现出良好的水力动力和屏障性能,与其他纤维素材料相美.
- 迁移水平低于干食品模拟剂的监管限制.
- 高糖含量提高了防脂性能,表明适合用于面包包装.
- 在海水中观察到高生物降解率.
结论:
- 纤维素-甘油薄膜是一种可行的环保替代传统塑料.
- 糖醇的塑化作用增强了机械性能和可加工性.
- 这些生物塑料在食品包装应用中表现出色,特别是面包产品.
- 观察到的高生物降解性有助于它们的可持续性.
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