Method for removing anti-nutritional factors from bean meal

Abstract

The invention belongs to a method for removing anti-nutritional factors from bean meal. The method for removing the anti-nutritional factors from the bean meal comprises the process of performing steam-explosion treatment on the bean meal, wherein process conditions of the steam-explosion treatment are as follows: the steam pressure is 0.5-0.7MPa, and the pressure-holding time is 20-120 seconds. The bean meal prepared by the steam-explosion treatment is characterized in that trypsin inhibitor content is reduced, and glycinin, beta-conglycinin and urease contents are obviously reduced; the bean meal prepared by the steam-explosion treatment is also characterized in that utilization efficiencies and digestion efficiencies of the proteins are obviously improved, and production efficiencies of the animals are improved. Anti-nutritional factors in the bean meal are reduced by steam explosion, so that the method has the advantages of short time, simple production steps and low production cost. Moreover, the bean meal treated by the steam explosion has a certain aromatic flavor, and is dry and crispy in taste; thus, palatability of the bean meal is improved.

Description

technical field [0001] The invention belongs to the field of feed processing, and in particular relates to a method for removing anti-nutritional factors in soybean meal. Background technique [0002] Soybean meal is a high-quality plant protein source, containing more than 43% crude protein, 2.5%~3% lysine, 0.6%~0.7% tryptophan, 0.5%~0.8% cystine, and 0.5%~0.7% methionine . At present, soybean meal for feed is generally high-temperature soybean meal, which has serious protein denaturation and poor solubility, which affects protein digestion. Moreover, soybean meal contains a variety of anti-nutritional factors, which seriously affect the digestion and absorption of protein, and bring harm to the health and production of farmed animals. [0003] The main nutritional function of soybean comes from high protein, but except for a small amount of non-protein anti-nutritional factors such as non-starch polysaccharides and phytic acid, most of the anti-nutritional factors are pr...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for removing anti-nutritional factors in soybean meal to effectively solve the problems of poor removal of anti-nutritional factors in existing feed processing methods, long processing cycle and high production cost