首页|可食性大豆分离蛋白复合膜的制备及保鲜应用

可食性大豆分离蛋白复合膜的制备及保鲜应用

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以大豆分离蛋白(SPI)和β-环糊精(β-CD)为基材,加4％的D-异抗坏血酸钠作为抗氧化剂制备可食膜,用扫描电子显微镜(SEM),傅里叶红外光谱(FT-IR)表征,并对鲜切马铃薯涂膜保鲜.结果表明,β-CD能够与SPI发生交联,提高基质的相容性,使可食膜更光滑、均匀.复合涂膜处理能有效减少水分损失,较好地保持了色泽和较高的总酚含量,减缓了多酚氧化酶(PPO)和过氧化物酶(POD)的活性升高,因而复合涂膜是用来延长鲜切马铃薯保质期的一种有效手段.
Preparation and Preservation Application of Edible Soy Protein Isolate Composite Membrane
Using soy protein isolate(SPI)and β-Cyclodextrin(β-CD)was used as the substrate,and 4％sodium D-isoascorbate was added as an antioxidant to prepare an edible membrane.The membrane was characterized by scanning electron microscopy(SEM)and Fourier transform infrared spectroscopy(FT-IR),and fresh-cut potatoes were coated for preservation.The results indicate that β-CD can cross-link with SPI,improve the compatibility of the matrix,and make the edible membrane smoother and more uniform.Composite coating treatment can effectively reduce water loss,maintain color and high total phenolic content,and slow down the activity increase of po-lyphenol oxidase(PPO)and peroxidase(POD).Therefore,composite coating is an effective method to extend the shelflife of fresh cut potatoes.

soybean protein isolateβ-cyclodextrinD-isoascorbate sodiumfresh-cut potatoesretain freshness

杨燕燕、朱帅杰、徐亿能、顾宇、翟立公、卫兰兰

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安徽科技学院食品工程学院,安徽滁州 239000

大豆分离蛋白 β-环糊精 D-异抗坏血酸钠 鲜切马铃薯 保鲜

安徽省重点研发项目安徽省教育厅重点项目安徽省重大科技专项安徽科技学院校级重点项目安徽科技学院人才基金大学生创新创业训练计划项目

202104f06020007KJ2021A08882021d060500012021zrzd12SPYJ2002001202110879050

2024

遵义师范学院学报
遵义师范学院

遵义师范学院学报

影响因子：0.165
ISSN：1009-3583
年,卷(期)：2024.26(1)
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