Method of preparing composite micro-ecological powder for feed through flash evaporation and drying

Abstract

The invention relates to a method of preparing composite micro-ecological powder for a feed through flash evaporation and drying. The method comprises the following steps: (1) respectively preparing concentrated bacillus licheniformis liquor and concentrated enterococcus faecium liquor through liquid state fermentation; (2) uniformly mixing the concentrated bacillus licheniformis liquor and the concentrated enterococcus faecium liquor obtained in the step (1) in the mass ratio of the concentrated bacillus licheniformis liquor to the concentrated enterococcus faecium liquor being 1: 1 so as to obtain mixed bacterium liquor; (3) adding sorbitol of which the mass accounts for 4-6% of that of the mixed bacterium liquor, trehalose of which the mass accounts for 4-6% of that of the mixed bacterium liquor, soybean isolated protein of which the mass accounts for 15-20% of that of the mixed bacterium liquor, and carboxymethyl cellulose sodium of which the mass accounts for 0.5-1.5% of that of the mixed bacterium liquor, to the mixed bacterium liquod obtained in the step (2), and then adding soft materials of which the solid content is 60-70%, wherein the soft materials are made of corn starch; and (4) performing flash evaporation and drying on the soft materials obtained in the step (3) so as to obtain the composite micro-ecological powder. According to the method disclosed by the invention, through a method that concentrated probiotic liquor is mixed and then the mixed concentrated probiotic liquor is dried, the compounding effect of probiotics is improved; through a method of adding carriers such as corn starch and sorbitol for flash evaporation and drying, the mortality rate of the probiotics in the drying process is reduced, so that the production cost is reduced, and the economic benefits are improves.

Description

Technical field [0001] The invention is the field of feed micro -ecological preparations, and it specially involves a method of composite micro -ecological powder for flickering and drying preparation of feed. technical background [0002] Micro -ecological preparations have been widely used in the field of feed. It has safety, high activity, no residues, and can be used for antibiotics for animal husbandry.Two or more probiotics are added to the feed, which are generally single -added and then mixed. Due to the small amount of addition, the two probiotics have uneven mixed phenomena, which affects the complexity effect. [0003] At present, most of the methods of preparing micro -ecological powder are spray drying methods. The equipment investment is large, the energy consumption is high, it is not easy to clean, and the spray liquid has fewer carriers, and probiotics have a high mortality rate during spray drying.For this reason, a method of composite micro -ecological powder f...

AI Technical Summary

Problems solved by technology

When adding more than two kinds of probiotics to the feed, it is generally added in a single way and then mixed. Due to the small amount added, the two kinds of probiotics are mixed unevenly, which affects the compounding effect.

[0003] At present, most of the methods for preparing micro-ecological powder are spray drying methods, which require large investment in equipment, high energy consumption, and are not easy to clean. There are few carriers added to the spray liquid, and the mortality rate of probiotics is high during the spray drying process.

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