Bean pulp rich in organic selenium and method of preparing the same

Abstract

The invention provides an animal feed bean meal enriched in organic selenium and a preparation process thereof. In the invention, saccharomyces cerivisiae, candida utilis, lactobacillus acidophilus and bacillus licheniformis are taken as bacterial strains; the bean meal is added with a certain proportion of molasses, ammonium sulfate and sodium selenite as a culture media for fermentation; then drying is carried out to transform inorganic selenium into the organic selenium, which causes the finished product to contain abundant protein and the organic selenium; the components of the bean meal comprises 50-60% of crude protein, 7-10% of moisture, 0-0.002% of urease and 1-10ppm of the organic selenium. The feed manufactured by using the protein raw material does not need to be added with selenide additives and avoids the disadvantages caused by using the bean meal, and the bean meal has low cost and simple preparation method.

Description

technical field [0001] The invention relates to an animal feed, in particular to a soybean meal rich in organic selenium, and also relates to a preparation process of the soybean meal. Background technique [0002] Trace elements have special functions for animals and are indispensable for normal physiological and biochemical processes in animals. The lack of these elements in animals will cause abnormal physiological functions and tissue structures, and then lead to the occurrence of various diseases. Selenium is an essential trace element in animals. In recent years, a large amount of data have proved that many diseases are related to selenium deficiency. Areas where the selenium content in forage grass is less than 0.05 μg / g are selenium-deficient areas, and about 2 / 3 of my country's areas are selenium-deficient areas, so selenium supplementation is generally required in animal production in my country. For a long time, people have used inorganic selenium-sodium selenit...

AI Technical Summary

Problems solved by technology

Its price is cheap, but there are many disadvantages in the use of sodium selenite: ①It has potential hazards to the health of workers in feed mills; ②Improper use, especially uneven mixing, animals are prone to poisoning; Similarly, it is not easy to be absorbed by the intestine, and the unabsorbed selenium is excreted through the feces, which will pollute the environment

However, the current fermented soybean meal only stops at improving the protein quality of soybean meal, and does not contain organic selenium