首页|The direct current magnetic field improved the water retention of low-salt myofibrillar protein gel under low temperature condition

The direct current magnetic field improved the water retention of low-salt myofibrillar protein gel under low temperature condition

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This study explored the effect of direct current magnetic field (DCMF) of 3.8 mT combined with temperatures (4 +/- 1 degrees C, low temperature, LT; 22 +/- 1 degrees C, room temperature, RT) on the properties of low-salt myofibrillar protein (MP) gel. DCMF with LT treatment could improve the water holding capacity (WHC) of MP gel from 22.76% to 24.24%, but had no effect on the gel treated with RT. This could be explained that DCMF incubation promoted the cross-linking between protein molecules by disulfide bonds in heating process, which contributed to the network structure of gel, thus improving the WHC. Furthermore, the microstructure of MP gel showed that DCMF incubation at LT could alter the network structure of gel, verified by Raman spectroscopic analysis that a conversion of 8-turn to random coil in the secondary structure of MP gel, which supported this explanation.

Myofibrillar proteinDirect current magnetic fieldChemical forceRaman spectroscopy

Wu, Di、Guo, Juanjuan、Wang, Xian、Yang, Kun、Wang, Limei、Ma, Jing、Zhou, Yuanhua、Sun, Weiqing

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Yangtze Univ, Coll Life Sci, Jingzhou 434023, Hubei, Peoples R China

Yangtze Univ, Sch Mech Engn, Jingzhou 434023, Hubei, Peoples R China

2021

LWT-Food Science & Technology

LWT-Food Science & Technology

ISSN:0023-6438
年,卷(期):2021.151
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