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可持续的高屏障智能包装膜可延长食用油的保质期
Dakuri Ramakanth1, Konala Akhila2,3, Shiva Singh1
1Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur campus, Saharanpur, 247001, Uttar Pradesh India.
ACS applied bio materials
|September 3, 2025
概括
这项研究引入了创新的,可生物降解的多层薄膜,用于智能食品包装. 这些薄膜显著延长了棕油等产品的保质期,减少了食品浪费和环境影响.
科学领域:
- 材料科学
- 食品科学
- 可持续的包装
背景情况:
- 一次性塑料和不可回收包装在食品行业带来了重大环境挑战.
- 越来越需要可持续和可生物降解的包装解决方案来提高食品安全并减少浪费.
研究的目的:
- 开发创新的多层柔性包装薄膜,增强屏障和氧气清理性能.
- 评估这些薄膜在延长食品,特别是棕油的保质期方面的有效性.
- 评估开发的包装膜对环境的影响和可降解性.
主要方法:
- 使用聚乳酸 (PLA),聚乙烯醇 (PLA) /天然乳和PLA/酸粘土制造三层柔性薄膜.
- 加入一个有氧吸收能力的活跃中间层.
- 在30天内将棕油存储在开发的膜中,监测颜色变化,过氧值 (PV) 和p-anisidine值 (p-AV).
- 使用沙尔烤箱测试进行保质期评估.
- 机械性能,氧气传输和水蒸气透性的评估.
主要成果:
- 开发的膜显著延长了棕油的保质期,30天后没有明显的颜色变化,PV和p-AV有所改善.
- 沙尔烤箱测试显示棕油的保质期延长了3年.
- 多层结构改善了机械和屏障性能,与纯净的PLA相比,氧气传递率降低了99%,水蒸气透率降低了50倍以上.
- 这些薄膜具有可生物降解性和可堆肥性,对环境的影响较小.
结论:
- 创新的多层柔性包装薄膜为延长食品的保质期和确保食品安全提供了可持续和有效的解决方案.
- 这些可生物降解的薄膜减少了食品浪费,促进了环境可持续性和循环经济.
- 通过促进负责任的消费和生产,开发的包装符合联合国可持续发展目标.
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