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用糖 - 糖醇混合物塑化的土豆粉薄膜的长期稳定性和性能
Tomasz Murawski1, Jerzy Szałapak1, Mariusz Tryznowski1
1Faculty of Mechanical and Industrial Engineering, Warsaw University of Technology, Narbutta 85, 02-524, Warsaw, Poland.
International journal of biological macromolecules
|October 22, 2025
概括
用糖多聚合物混合物塑化的土豆粉薄膜具有出色的储存稳定性. 这些可生物降解的薄膜显示出可持续的长期食品包装应用的潜力.
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:
- 基于粉的薄膜是传统包装的可生物降解替代品.
- 增塑剂对于提高粉膜的灵活性和可加工性至关重要.
- 研究新型塑化剂组合对于提高薄膜性能和稳定性至关重要.
研究的目的:
- 为了评估基于甘油的聚醇混合物 (酸盐,糖醇,果糖) 对土豆粉膜特性的影响.
- 评估这些开发的基于粉的薄膜的长期储存稳定性.
- 确定这些薄膜是否适用于可持续包装.
主要方法:
- 使用甘油/,甘油/和甘油/果糖混合物作为增塑剂制备土豆粉薄膜.
- 薄膜的特性包括颜色,水蒸气过渡速率,表面自由能量,形态,抗拉强度和破裂时的延长.
- 长期储存测试 (五年) 在没有光线的情况下评估财产保留.
主要成果:
- 增塑剂类型显著影响了薄膜的机械性能,其抗拉强度从2.239.26 MPa不等,破裂时的延长率从3280%.
- 表面自由能量从51.078.3 mJ·m-2不等,水接触角度从4.463.0°不等.
- 经过五年的储存,薄膜保留了大约88%的抗拉强度和65%的破裂延伸,表明结构完整性良好.
结论:
- 糖多聚醇可塑化粉膜显示出有前途的功能性质和显著的长期储存稳定性.
- 这些材料为开发可持续和有效的包装解决方案提供了可行的途径.
- 该研究强调了针对先进生物降解薄膜量身定制的塑化剂配方的潜力.
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