Multi-dimensional analysis of rennet-induced micellar casein gels after ultrasound
文献类型: 外文期刊
第一作者: Zhang, Yumeng
作者: Zhang, Yumeng;Zhang, Shuwen;Song, Bo;Wang, Xiaodan;Zhang, Wenyuan;Li, Weixun;Pang, Xiaoyang;Zhu, Huiquan;Lu, Jing;Lv, Jiaping;Wang, Xiaodan;Wang, Xiaodan;Zhang, Wenyuan;Lu, Jing
作者机构:
期刊名称:INTERNATIONAL DAIRY JOURNAL ( 影响因子:3.572; 五年影响因子:3.89 )
ISSN: 0958-6946
年卷期: 2022 年 126 卷
页码:
收录情况: SCI
摘要: Multi-dimensional analyses (pH, particle size, zeta potential, surface hydrophobicity, protein structure, microstructure of gels, free sulphydryl content, and fluorescence intensity) were performed to determine the structural changes and gel properties of micellar casein concentrate (MCC) at different protein concentrations (8%, 12%, 16%) treated with ultrasound (40 kHz, 500 W, 0e60 min). The gel strength and water holding capacity were improved with the increase in ultrasound treatment time and protein concentration. A denser gel network with smaller pore size was formed. For gels made from MCC after ultrasound treatment for 60 min, the gel properties were especially improved. The particle size decreased, zeta potential and hydrophobicity increased after ultrasound treatment. Ultrasound treatment influenced the secondary structure of MCC while no change in the molecular weight of the protein was detected. (c) 2021 Elsevier Ltd. All rights reserved.
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