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A Review on Material and Antimicrobial Properties of Soy Protein Isolate Film

机译：大豆分离蛋白膜的材料和抗菌性能研究进展

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摘要

In twenty first century, there is an increasing demand for packed food which requires packaging films. At present, these packaging films are processed from synthetic polymers such as polyethylene, polypropylene and many other synthetic polymers. But we need to start using soy protein as sustainable antimicrobial film that can be used for packaging purposes. There is abundance and high availability of soy protein isolate (SPI) as by-product from industries, such as food processing or biodiesel production. Soy based films from renewable resources can offer a more suitable alternative to films fabricated from synthetic materials. Soy based films in presence of additives such as acidic compounds, nanoparticles and natural compounds have good mechanical properties and are transparent in nature. In addition, soy based film in presence of 2,2-diphenyl-2-hydroxyethanoic acid and copper phosphate can give lotus-like structure as evidenced from morphological studies. Also the manufacturing process (solution casting and compression molding) of SPI film in the presence or absence of additives is very easy and commercially feasible. It is worth noting that SPI films can be produced at laboratory scale by both casting and compression molding methods. In this review paper, we have focused on the material properties as well as antimicrobial properties of SPI based films in the presence of natural and synthetic additives as reported in the last 20years.
机译：在二十世纪，对包装薄膜的包装食品的需求不断增长。目前，这些包装膜是由合成聚合物例如聚乙烯，聚丙烯和许多其他合成聚合物加工而成的。但是我们需要开始使用大豆蛋白作为可用于包装目的的可持续抗菌膜。作为食品加工或生物柴油生产等行业副产品的大豆分离蛋白（SPI）含量高且可用性高。来自可再生资源的大豆基薄膜可以提供替代合成材料薄膜的更合适的替代品。在添加剂如酸性化合物，纳米颗粒和天然化合物的存在下的大豆基薄膜具有良好的机械性能并且本质上是透明的。此外，形态学研究表明，在2，2-二苯基-2-羟基乙酸和磷酸铜存在下的大豆基薄膜可以产生类似莲花的结构。此外，在存在或不存在添加剂的情况下，SPI薄膜的制造工艺（溶液浇铸和压塑）非常容易，并且在商业上可行。值得注意的是，SPI薄膜可以通过流延和压塑方法在实验室规模生产。在过去的20年中，在这篇综述文章中，我们重点介绍了在天然和合成添加剂存在下SPI基薄膜的材料性能和抗菌性能。

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