Journal
TRENDS IN FOOD SCIENCE & TECHNOLOGY
Volume 54, Issue -, Pages 138-147Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tifs.2016.06.005
Keywords
Soymilk; Soy protein; Tofu; Gel; Texture
Categories
Funding
- National Natural Science Foundation of China [31471582]
- National Key Technologies Research and Development Program of China [2013AAD102208]
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Backgrounds: Soymilk is a complex colloidal system that mainly comprises protein and lipid particles and other minor components. Soymilk is consumed worldwide as a nutritious protein beverage and used as raw material to produce soy gel foods, such as tofu and soy yogurt. Recently, soymilk has been applied in dairy industry as a functional ingredient to improve the texture, flavor, and nutritional value of various products. To fulfill these traditional and innovative applications, researchers must elucidate the structure function relationship of the major components of soymilk. Scope and approach: This review aims to provide a fundamental picture of the microstructural nature of soymilk and its gel. The behavior of particles during soymilk gelation is also discussed. This study emphasizes the influence of heat on formation of particles and gelation of soymilk. Key findings and conclusions: When heating raw soymilk, the subunits of soy protein are denatured, dissociated, and subsequently aggregated to form particles with heterogeneous sizes, composition, and molecular structure. The ion- or acid-induced coagulation between denatured soy protein and lipid particles results in soymilk gelation. Models based on published data are proposed to illustrate protein-lipid interaction during soymilk production and gelation. (C) 2016 Elsevier Ltd. All rights reserved.
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