Functionality of milk protein concentrate 80 with emulsifying salts and its applications in analogue cheeses
文献类型: 外文期刊
第一作者: Sun, Yanjun
作者: Sun, Yanjun;Liu, Zhenmin;Mo, Beihong;Sun, Yanjun;Lv, Jiaping;Li, Hongjuan;Li, Siming
作者机构:
关键词: Analogue cheese;Emulsifying salts;Functionality;Milk protein concentrate 80;Solubility
期刊名称:INTERNATIONAL JOURNAL OF FOOD PROPERTIES ( 影响因子:2.727; 五年影响因子:2.938 )
ISSN: 1094-2912
年卷期: 2017 年 20 卷 11 期
页码:
收录情况: SCI
摘要: Milk protein concentrate 80 (MPC80) was prepared with different emulsifying salts (ES). The effects on particle size (D50), solubility, and surface hydrophobicity (H-0) of MPC80 were then observed after production. The molecular weight and secondary structure of MPC80 protein were also investigated through sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) and Fourier Transform Infrared (FTIR) spectrometry. Particle size (D50) was reduced from 31.37 to 20.67 m following the addition of sodium phosphate (SPS). The solubility of MPC80 fortified with sodium citrate salt (SCS), SPS, and sodium pyrophosphate (SPP) was improved by 80.32, 78.23, and 55.80%, respectively. The SDS-PAGE pattern showed no significant difference between the control and single-ES-fortified samples, but major protein bands ((s)-CN, -CN, -CN, BSA, and -LG) had a stronger intensity than binary-ES-fortified MPC80. The FTIR results showed that the -sheet content of ES-fortified MPC80 was relatively higher than that in the control. Compared with analogue cheeses made by MPC80 with and without ES, SCS-SPP (92:8)-modified MPC80 presented a better fluid mass and homogeneous colour.
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