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用精油浸的生物衍生为活性包装应用的藻酸盐-丁生物聚合物薄膜
Karvembu Palanisamy1, Gowthami Palanisamy2, Ajmal P Muhammed2
1Department of Microbiology, Punjab Agricultural University, Ludhiana, Punjab, India.
Journal of food science
|November 26, 2025
概括
这项研究开发了一种新的生物聚合物薄膜,使用甲基酸盐,pectin和精油修饰的. 这种可持续的食品包装增强了机械强度,屏障性能和抗菌活性,延长了草的保质期.
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:
- 传统的塑料食品包装带来了环境和健康问题.
- 越来越需要可生物降解和具有成本效益的生物聚合物替代品.
- 可持续的食品包装需要生物基材料,水溶性薄膜和废物回收利用.
研究的目的:
- 开发一种具有增强性能的可持续食品包装膜.
- 研究将生物材料衍生 (b.SiO2) 与精油 (EO) 改性纳入藻酸盐/pectin (SA/P) 矩阵中的潜力.
- 在机械强度,屏障性能,热稳定性和抗菌活性方面评估薄膜的性能.
主要方法:
- 使用甲基酸盐/pectin (SA/P) 聚合物矩阵制备了一个混合膜.
- 生物材料衍生的二氧化 (b.SiO2) 用精油 (EO) 进行修改,并纳入SA/P矩阵.
- 评估了片的性能,包括机械强度,水蒸气透性,水接触角度,热稳定性和抗菌活性.
- 在7天的时间里,使用草来评估包装性能.
主要成果:
- 由于分子间相互作用,SA/P-b.SiO2-EO膜表现出优异的膜形成能力和灵活性.
- 混合薄膜显示了增加的机械强度 (46.82 MPa) 和高热稳定性相比SA/P-only薄膜.
- 观察到可控制的水蒸气透率 (9.2 × 10^-11 gm^-1s^-1Pa^-1) 和增加的水接触角度 (51.4°).
- 片展示了显著的包装性能,保持草新鲜7天.
- 这种SA/P-b.SiO2-EO薄膜对S. aureus和E. coli具有相当大的抗菌活性.
结论:
- 加入到SA/P膜中的EO改性b.SiO2显著增强了功能,屏障和抗菌特性.
- 开发的混合薄膜是食品包装应用的可行和可持续的替代方案.
- 这项研究通过利用生物基材料和废物利用原则,为开发环保食品包装解决方案做出了贡献.
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