双重修改的A型和B型小麦粉-PCL复合膜:来自哈萨克斯坦资源的抗菌和HACCP导向的生物降解包装
Gulnazym Ospankulova1, Saule Saduakhasova1, Svetlana Kamanova1
1Department of Food Technology and Processing Products, Technical Faculty, Saken Seifullin Kazakh Agrotechnical Research University, Zhenis Avenue, 62, Astana 010011, Kazakhstan.
Foods (Basel, Switzerland)
|November 13, 2025
概括
小麦粉的晶体类型影响了可生物降解的包装特性. A型粉提高了机械强度和湿度控制,而B型粉提供了透气性和更快的堆肥,以获得可持续的材料.
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
- 可持续的包装 包装是可持续的
背景情况:
- 来自石油的塑料带来了环境挑战.
- 可生物降解的包装提供了一个可持续的替代品.
- 粉-聚烯酸乙烯 (PCL) 复合材料对环保包装具有前景.
研究的目的:
- 调查小麦粉晶体类型 (A型与B型) 对PCL复合材料性能的影响.
- 评估改性粉在可生物降解包装应用中的性能.
- 了解针对性材料设计的结构-属性-降解关系.
主要方法:
- 小麦粉的双重修饰 (电子束辐射和乙化).
- 通过融挤出和压缩成型将改性粉 (30-50%重量) 纳入PCL.
- 薄膜的形态特征,机械性能,水蒸气透性 (WVP),热行为,抗菌活性和生物降解.
主要成果:
- 乙化A型粉导致均分散,更光滑的表面,更高的抗拉强度和适度的WVP.
- B型粉导致多孔微结构,增加WVP,并在堆肥过程中加速质量损失 (在10天内约45%).
- 添加粉略有降低了热稳定性;A型复合材料对大肠杆菌和黄金色杆菌有更好的抗菌活性.
结论:
- A型粉PCL薄膜适用于需要机械完整性和受控湿度的应用.
- B型粉PCL系统有利于透气包装和快速堆肥性.
- 粉晶体类型对PCL复合材料的性能和降解具有关键性,使得定制的可持续包装设计成为可能.
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