摘要
利用气凝胶模板法可间接制备油凝胶,该方法具有制备简单、性能优异等优点而被广泛关注。本研究通过静电相互作用制备了羧甲基纤维素钠(carboxy methyl cellulose-Na,CMC-Na)/大豆分离蛋白(soybean protein isolate,SPI)复合气凝胶,探究不同蛋白含量对气凝胶平均粒径、微观结构、红外光谱、吸油动力学、吸油和持油能力的影响。并基于气凝胶模板制备油凝胶,对其质构性能、抑菌性能以及贮藏稳定性进行表征。结果表明,SPI和CMC-Na依靠静电吸附形成了稳定的复合物,平均粒径随着蛋白含量的增加而增大。复合气凝胶显示出更加致密的多孔网络结构,持油能力得到增强,但不利于吸油性能的改善。同时,蛋白的加入提高了油凝胶的强度,增加了杨氏模量,并改善了油凝胶的抑菌效果和贮藏稳定性。因此,气凝胶模板法可视为制备油凝胶的良好方法,并且基于多糖蛋白静电吸附可以制备稳定的油凝胶体系。
The indirect preparation of oleogels by the aerogel template method has received widespread attention due to its advantages such as simple operation and excellent performance.In this study,composite aerogels of carboxy methyl cellulose-Na(CMC-Na)and soybean protein isolate(SPI)were prepared by the electrostatic interaction between them.The effects of different protein contents on the average particle size,microstructure,Fourier transform infrared(FTIR)spectrum,oil absorption kinetics,oil absorption capacity and oil holding capacity of aerogels were investigated.The oleogels prepared based on aerogel templates were characterized for their textural properties,antibacterial properties,and storage stability.The results showed that SPI and CMC-Na formed stable complexes through electrostatic interactions,and the average particle size of the complexes increased with protein content.The composite aerogel displayed a denser porous network structure along with improved oil-holding capacity,but had unfavorable effects on oil absorption performance.Moreover,the addition of protein improved the strength and Young’s modulus,and enhanced the antibacterial effect and storage stability of the oleogel.Therefore,the aerogel template method is good for preparing oleogels and a stable oleogel system can be prepared by electrostatic adsorption between polysaccharides and proteins.
作者
崔梦琦
单冠程
孙若涵
田波
隋晓楠
CUI Mengqi;SHAN Guancheng;SUN Ruohan;TIAN Bo;SUI Xiaonan(College of Food Science,Northeast Agricultural University,Harbin 150030,China)
出处
《食品科学》
EI
CAS
CSCD
北大核心
2024年第4期60-67,共8页
Food Science
基金
“十四五”国家重点研发计划重点专项(2021YFC2101405)
黑龙江省重点研发计划项目(GA22B001)。
关键词
羧甲基纤维素钠
大豆分离蛋白
静电吸附
气凝胶模板
油凝胶
sodium carboxymethylcellulose
soybean protein isolate
electrostatic adsorption
aerogel template
oleogels
作者简介
第一作者:崔梦琦(1999-)(ORCID:0009-0005-2299-6683),女,硕士研究生,研究方向为生物与医药。E-mail:2351661752@qq.com;通信作者:田波(1969-)(ORCID:0000-0001-5480-888X),女,教授,博士,研究方向为食品科学。E-mail:tianbot@163.com;通信作者:隋晓楠(1987-)(ORCID:0000-0002-7398-8617),男,教授,博士,研究方向为粮食、油脂及植物蛋白工程。E-mail:xiaonan.sui@neau.edu.cn。
