4.7 Review

Changes of Soybean Protein during Tofu Processing

Journal

FOODS
Volume 10, Issue 7, Pages -

Publisher

MDPI
DOI: 10.3390/foods10071594

Keywords

tofu; protein; structure; mechanism

Funding

  1. National Key R&D Program of China [2016YFD0400203]

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This review explores the changes in soy protein composition and structure during tofu processing, and how factors like soybean varieties, storage conditions, and coagulant types impact tofu quality. It highlights current research advantages and limitations, providing suggestions for future tofu production research.
Tofu has a long history of use and is rich in high-quality plant protein; however, its production process is relatively complicated. The tofu production process includes soybean pretreatment, soaking, grinding, boiling, pulping, pressing, and packing. Every step in this process has an impact on the soy protein and, ultimately, affects the quality of the tofu. Furthermore, soy protein gel is the basis for the formation of soy curd. This review summarizes the series of changes in the composition and structure of soy protein that occur during the processing of tofu (specifically, during the pressing, preservation, and packaging steps) and the effects of soybean varieties, storage conditions, soybean milk pretreatment, and coagulant types on the structure of soybean protein and the quality of tofu. Finally, we highlight the advantages and limitations of current research and provide directions for future research in tofu production. This review is aimed at providing a reference for research into and improvement of the production of tofu.

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