期刊
PEERJ
卷 4, 期 -, 页码 -出版社
PEERJ INC
DOI: 10.7717/peerj.2754
关键词
Microbial transglutaminase (MTGase); Bio-tofu; In vitro gastrointestinal digestion; Lactic acid bacteria
资金
- Scientific and Technical Project of Huai'an city, Jiangsu Province [HAC2015020]
- Jiangsu Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control
We have developed a novel bio-tofu made from mixed soy and cow milk (MSCM), using Lactobacillus helveticus MB2-1 and Lactobacillus plantarum B1-6 incorporated with microbial transglutaminase (MTGase) as coagulant. MTGase was added Ito improve the textural properties and suit for cooking. However, the effect of MTGase on the digestion of mixed-protein fermented by lactic acid bacteria was unclear. This study aimed at evaluating the effect of MTGase on protein digestion of bio-tofu under simulated gastrointestinal digestion condition. The results showed that addition of MTGase could affect the particle size distribution, degree of hydrolysis, the content of soluble proteins and free amino acids. Based on the electrophoresis data, MTGase addition enhanced protein polymerization. During gastric land intestinal digestion process, proteins from bio-tofu were degraded into low molecular mass peptides. Our results suggested that incorporation of MTGase could lead to enzymatic modification of proteins of bio-tofu which may help in controlling energy intake and decrease the chance of food allergy.
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