Preparation method of organic selenium enzyme preparation with high conversion rate

Abstract

The invention provides a preparation method of an organic selenium enzyme preparation with high conversion rate. The preparation method of the organic selenium enzyme preparation with high conversionrate comprises the following steps of mixing bran, soybean meal, rice husk powder, a sodium selenite solution and the like; carrying out high-temperature high-pressure sterilization; inoculating a koji-plate bacterial strain of torula yeast into the sterilized mixture, carrying out culturing, and taking out the culture product; inoculating a koji-plate bacterial strain of aspergillus usamii onto the culture product, and carrying out second culturing; inoculating a koji-plate bacterial strain of bacillus subtilis onto the culture product, and carrying out third culturing; and then, drying the culture product of the third culturing, and carrying out crushing so as to obtain the organic selenium enzyme preparation. According to the preparation method of the organic selenium enzyme preparationwith high conversion rate, three times of conversion are continuously carried out by adopting three bacterial strains so that the conversion rate of inorganic selenium into organic selenium is high,namely 98% or above; and thus, the inorganic selenium with extremely low potency is conversed into organic selenium which has relatively high potency. The prepared organic selenium enzyme preparationintegrates organic trace elements, enzyme preparations and probiotics; and thus, the preparation has a plurality of biological functions, as well as the functions of reducing anti-nutritional factors.

Description

technical field [0001] The invention provides a preparation method of an organic selenium enzyme preparation with high conversion rate. Background technique [0002] At present, most of the selenium products sold in the feed additive market are inorganic selenium, that is, sodium selenite, which has low potency when used, and long-term use will pollute water quality and the environment. Although there is a part of organic selenium, most of them are industrially synthesized products with high cost and expensive price. Now there is a preparation method of an organic selenium enzyme preparation, which uses probiotics such as fungi and bacteria as carriers to convert inorganic selenium into organic selenium through biotransformation, thereby improving the potency and avoiding the pollution caused by the use of inorganic selenium. However, this preparation method usually only uses one kind of bacteria for one conversion, and the conversion rate of inorganic selenium into organic...

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Problems solved by technology

But this preparation method usually only uses one kind of bacterium to carry out one conversion, and the