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蛋废物作为多功能填充剂,克服了基于粉的薄膜的限制
Hao Xu1, Jiaxu Li2, David Julian McClements3
1School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China.
International journal of biological macromolecules
|October 1, 2023
概括
蛋粉 (ES) 和表甲基酸盐 (EGCG) 改善了用于食品包装的粉薄膜. 这些可持续的添加剂提高了机械强度,耐水性,紫外线保护和抗菌性质,为塑料提供了可行的替代品.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 食品科学 食品科学 食品科学
背景情况:
- 基于粉的薄膜是一种可持续的替代品,可以替代以石油为基础的塑料用于食品包装.
- 然而,原生粉薄膜由于机械性能差,湿度敏感性和细菌污染而受到损害.
- 提高粉膜的功能对于它们的广泛采用至关重要.
研究的目的:
- 研究将蛋粉末 (ES) 和表甲基酸盐 (EGCG) 纳入粉膜的潜力,以改善基于粉的薄膜特性.
- 评估ES粒子特性和EGCG吸附对薄膜性能的影响.
- 评估这些增强膜对于食品包装应用的适用性.
主要方法:
- 制备各种尺寸,度和表面修改的蛋粉末 (ES) 的粉基薄膜.
- 在多孔ES.的表面上吸附表甲基甲酸盐 (EGCG).
- 薄膜机械性能 (抗拉强度,扬模量),耐水性,紫外线选和屏障性能 (水蒸气,氧气) 的表征.
- 对开发的薄膜的抗菌活性进行评估.
主要成果:
- 加入ES显著改善了片的气结合,抗拉强度,模和抗水性.
- EGCG对ES的吸附提高了填充剂的分散性,从而改善了紫外线选 (60%),水蒸气屏障 (7.2%) 和氧气屏障 (27.9%) 的性能.
- 装有EGCG的ES也给粉膜带来了优异的抗菌活性.
结论:
- 蛋粉 (ES) 是一种有效和可持续的填充剂,可以增强粉基薄膜的机械和屏障性能.
- 在ES上吸附epigallocatechin gallate (EGCG) 进一步增强紫外线保护,屏障性能和抗菌活性.
- 这些功能性粉薄膜作为食品工业的环保包装材料具有显著的前景.
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