China Animal Husbandry and Veterinary Medicine ›› 2024, Vol. 51 ›› Issue (5): 1931-1938.doi: 10.16431/j.cnki.1671-7236.2024.05.014

• Nutritionand Feed • Previous Articles     Next Articles

Research Progress on Anti-nutritional Factors in Soybean Meal and Preparation of Peptides from Enzymatically Hydrolyzed Soybean Meal

ZHAO Manqi, CHEN Xing, CHEN Zhimin, LIU Guohua, ZHENG Aijuan   

  1. Institute of Feed Research, Chinese Academy of Agricultural Sciences, Laboratory for Risk Assessment of Feed-derived Factors on Quality Safety of Animal Products, Ministry of Agriculture and Rural Affairs, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Beijing 100081, China
  • Received:2023-10-12 Online:2024-05-05 Published:2024-04-28

Abstract: Soybean meal,as a byproduct of soybean oil extraction,has become one of the main plant protein feed materials in China due to its high protein content,balanced amino acids,and comprehensive nutritional elements.However,soybean meal contains anti-nutritional factors (such as trypsin inhibitors,urease,soybean lectins and non-starch polysaccharides) that severely hinder the digestion and absorption of nutrients in animals.Soybean peptide,as an incompletely hydrolyzed product of soybean meal protein,has the characteristics of fast transport speed,low carrier saturation,low energy consumption,avoidance of amino acid competition,and multiple biological activities.Therefore,increasing the content of peptides in soybean meal can significantly improve its nutritional value.Currently,the main methods for preparing peptides from soybean meal include chemical methods,microbial fermentation methods,and enzymatic hydrolysis methods.Compared to the first two preparation methods,enzymatic hydrolysis has stronger specificity for the removal of anti-nutritional factors in soybean meal and the increase of peptide content.The author summarizes the nutritional characteristics of soybean meal and the main factors affecting its nutritional value,and analyzes the mechanisms of anti-nutritional factors in soybean meal.In addition,the advantages and disadvantages of chemical methods and microbial fermentation methods for peptide preparation are discussed,and the advantages and practical application effects of enzymatic hydrolysis of soybean meal for peptide preparation are summarized.The existing problems are also analyzed.This provides a reference for the enzymatic hydrolysis method to eliminate anti-nutritional factors in soybean meal and prepare peptides.

Key words: soybean meal; anti-nutritional factors; enzymatic hydrolysis; peptides

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