基于具有不同替代度的奇托-甲基酸联合体的抗氧化剂包装膜的制备,表征和应用
Huimin Yong1, Zeyu Wang1, Jinbao Huang2
1College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China.
International journal of biological macromolecules
|January 21, 2024
概括
这项研究开发了抗氧化剂包装膜,通过将奇托与甲酸结合. 这些素-甲基酸联体的更高的替代度增强了膜的屏障,机械和抗氧化性能.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 食品科学 食品科学 食品科学
背景情况:
- 素 (CS) 是一种生物聚合物,具有积极包装应用的潜力.
- 甲酸 (ECG) 是一种强大的抗氧化化合物.
- 开发功能性包装材料需要增强像CS.CS.这样的生物聚合物的特性.
研究的目的:
- 为了合成具有不同替代度的奇托-甲基酸盐 (CS-ECG) 结合物.
- 通过将CS与CS-ECG合物混合,制造抗氧化剂包装膜.
- 为了研究CS-ECG联置换度对薄膜功能的影响.
主要方法:
- 将CS与ECG结合起来,以达到5.18%,6.36%和7.74%的替代度.
- 制造CS/CS-ECG复合薄膜. 在CS/CS-ECG复合膜的制造.
- 使用光谱技术 (UV,1H NMR,FTIR) 进行CS-ECG结合物和CS/CS-ECG膜的表征.
- 评价薄膜的特性,包括水溶性,水接触角度,水蒸气透性,氧透性,抗拉强度,破裂时延长,抗氧化活性和油氧化抑制.
主要成果:
- 与CS相比,CS-ECG结合物表现出降低的结晶性和增强的抗氧化活性.
- CS/CS-ECG膜表现出良好的屏障特性,机械强度以及强大的抗氧化和油氧化抑制能力.
- 含有CS-ECG结合物的膜具有最高的替代度 (7.74%),显示出优越的屏障,机械和抗氧化性能.
结论:
- CS-ECG结合物的替代程度是影响产生的包装膜性质的关键因素.
- 在活性包装应用中,CS-ECG结合物可以有效地增强基托基薄膜的功能.
- 优化CS-ECG结合物的合成可以导致先进的抗氧化剂包装材料.
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