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基于鱼类的生物聚合物复合合物涂层,用于改善纸张氧气和水障碍
Sarah G Fisher1, Zachary Buck1, Margaret J Karim1
1Texas A&M University, 400 Bizzell Street, College Station, Texas 77840, United States.
Biomacromolecules
|November 26, 2025
概括
研究人员使用废弃生物聚合物,凝和DNA开发了一种可持续的纸张涂层. 这种基于生物的涂层显著提高了屏障特性,减少了浪费,并为环保食品包装提供了有希望的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 生物技术是生物技术.
- 可持续的包装 包装是可持续的
背景情况:
- 目前的食品包装严重依赖于不可持续的材料,导致环境浪费.
- 纸质包装是可再生的,但缺乏足够的阻碍氧气,油脂和水蒸气的特性.
- 开发具有增强屏障功能的可持续替代品对于减少食物浪费和环境影响至关重要.
研究的目的:
- 创建一个可持续的,基于生物的纸包装涂层.
- 为了提高 kraft 纸对常见透物质的屏障性能.
- 探索废弃生物聚合物 (凝和DNA) 的使用,用于先进的食品包装应用.
主要方法:
- 使用废弃的生物聚合物:凝和DNA,制定了一个复杂的协同合物涂层.
- 涂层被涂在 kraft 纸上.
- 涂层纸经过热固化,以提高屏障性能.
主要成果:
- 生物基涂层显著改善了 kraft 纸的屏障性能.
- 在涂层和固化后,水蒸气传递率 (WVTR) 降低了83%.
- 在涂层和固化后,氧气传递率 (OTR) 降低了99%.
结论:
- 凝-DNA复杂的协酸涂层为纸包装提供了出色的屏障性能.
- 这种完全基于生物的涂层是一种非常有前途的,可持续的替代传统包装材料.
- 开发的涂层有效地解决了食品包装中的纸张的局限性,减少了食品浪费和环境影响.
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