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在橄叶提取物/纤维素纳米晶/聚乙烯基酸盐-联合甲酸盐) 生物材料中,接口相互作用驱动了抗氧化特性

Giuseppa Anna De Cristofaro¹, Marina Paolucci¹, Daniela Pappalardo¹

¹University of Sannio - Department of Science and Technology, Via Francesco De Sanctis snc, 82100 Benevento, Italy.

International journal of biological macromolecules

|June 6, 2024

概括

新型生物材料结合了聚乙烯基合甲基 (PBAT) 和橄叶提取物 (OLE),为食品包装提供抗氧化特性. 纤维素纳米晶体 (CNC) 影响OLE释放和PBAT矩阵内的相互作用.

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:

功能性食品包装是一个新兴的研究领域.
将抗氧化剂特性纳入包装膜可以提高食品的保存性.
橄叶提取物 (OLE) 是抗氧化剂的天然来源.

研究的目的:

开发使用聚乙烯酸盐-共甲酸盐 (PBAT) 和OLE的新型抗氧化生物材料.
为了研究纤维素纳米晶体 (CNC) 对PBAT/OLE系统的影响.
描述开发的生物材料的物理和抗氧化特性.

主要方法:

化合成的PBAT和OLE.
将CNC集成到PBAT/OLE矩阵中.
形态分析 (例如,混合性,分散性).
对机械性能进行拉伸测试.
对OLE释放的模拟食品试验.
抗氧化剂活性测定. 抗氧化剂活性测定.
光谱法用于相间相互作用.

主要成果:

OLE和PBAT显示出完全的混合性,OLE有助于CNC分散.
在一个月的时间里,OLE对PBAT表现出稳定的增塑效应.
具有20%重量%OLE的材料显示OLE释放延迟.
抗氧化活性得到证实,在20%重量%的OLE下延长.
非共价的π-π堆积键介导PBAT/OLE相互作用.
在CNC和OLE之间的结合加速了OLE的释放.

结论:

PBAT/OLE/CNC复合材料为功能性食品包装提供有前途的抗氧化特性.
组件之间的相互作用影响OLE释放动力学.
需要仔细控制CNC含量,以控制抗氧化剂释放率.

关键词:

农业废弃物农业废弃物可生物降解的包装包装.纤维素纳米晶体纤维素纳米晶体光光谱学是一种光谱学.这是一种欧蛋白.

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