基于化粉和黑米的智能改变颜色的包装膜,含有酸和酸
1College of Engineering and Technology, Jilin Agricultural University, Changchun 130118, China.
Food chemistry: X
|November 11, 2024
概括
这项研究开发了智能包装膜,使用粉 (S) 和化粉 (ES) 复合物中的黑米素 (BRA). 增强BRA的薄膜随着pH值的变化而改变颜色,为监测食品和水质提供了潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 食品科学 食品科学 食品科学
- 聚合物科学 聚合物科学
背景情况:
- 智能包装膜提供了增强的信息,保存和方便.
- 黑米抗素 (BRA) 是一种具有智能应用潜力的天然色素.
- 来自粉 (S) 和粉 (ES) 的复合膜正在探索先进的包装.
研究的目的:
- 在粉 (S) 和粉 (ES) 复合物中加入黑米酸 (BRA) 来开发一种智能变色包装膜.
- 研究BRA含量对S/ES复合膜的物理,机械和光学性能的影响.
- 为了评估开发的智能膜的pH响应变色能力.
主要方法:
- 通过将不同度的黑米抗素 (BRA) 加入粉 (S) 和化粉 (ES) 基板中,制备复合薄膜.
- 薄膜属性的表征,包括厚度,总色差,不透明度,抗拉强度和破裂时的延长.
- 通过观察各种缓冲溶液中的颜色变化,测试膜对不同pH值的反应.
主要成果:
- 增加BRA含量导致更大的薄膜厚度和总色彩差异.
- 与S/ES薄膜相比,透明度下降,但随着BRA度的增加而增加.
- 破裂时的延伸度有所改善 (33.1%至45.4%),而拉伸强度则降低 (7.3至5.8MPa) 添加了BRA.
- 根据不同pH值,S/ES-BRA膜呈现出明显的颜色变化.
结论:
- 开发的S/ES-BRA复合膜作为一种智能,变色的材料,能够响应pH值变化.
- 这种对pH值敏感的薄膜对监测食品质量,水质和土壤性质的应用具有前景.
- 纳入天然BRA为创建先进的智能包装解决方案提供了一种可持续的方法.
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