Method for preparing a fermented soybean meal using bacillus strains

Abstract

The present invention relates to a method for producing a fermented soybean meal, comprising the steps of: (a) adding water to a soybean meal to perform heat-treatment; (b) cooling the heat-treated soybean meal, and then inoculating a Bacillus strain thereinto; and (c) acquiring a fermented soybean meal by solid fermentation of the Bacillus-inoculated soybean meal, and to a fermented soybean meal produced by the method. The method of the present invention uses a Bacillus strain having excellent properties required for the production of fermented soybean meal, in particular, Bacillus subtilis TP6 strain as a fermentation strain. Therefore, the fermented soybean meal produced by the present invention is a high-quality plant protein source in that various anti-nutritional factors including trypsin inhibitors, soybean oligosaccharides and polysaccharides are almost all removed, its protein content is high, and digestion and absorption rates are also improved by low-molecularization of the proteins. In particular, the TP6 strain capable of removing anti-nutritional factors is used to improve the product quality equivalent to or better than those produced by the known fermented soybean meals while reducing the fermentation time, thereby remarkably increasing the annual production.

Description

technical field

[0001] The present invention relates to an inexpensive and effective method of producing fermented soybean meal for the purpose of improving or improving the quality of defatted soybean meal as a vegetable protein source, and fermented soybean meal produced by the same method. Background technique

[0002] Since wind cow disease, which is fatal to humans, has been shown to be caused by animal protein components in cattle feed, there has been an increasing worldwide trend to replace animal protein in feed with vegetable protein.

[0003] Defatted soybean meal (hereinafter, referred to as "soybean meal") is the most common source of vegetable protein used in the feed market as a substitute for animal proteins such as fish meal, meat and bone meal or blood plasma. In Korea, soybean meal used as a plant protein source accounts for 60% of the total meal supply, amounting to 2 million tons per year (Korea Feed Ingredients Association, 2004).

[0004] Soy flour is ...

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