Process for producing livestock feed additive from reside and dreg materials

Abstract

Based on the problem of preparing residues and dregs into feed in the prior art, the invention provides a process for producing a livestock feed additive from reside and dreg materials. The process comprises the following steps: (1) sufficiently mixing one or more residue and dreg materials with water according to a certain liquid and solid ratio; (2) pretreating the mixed material through a hydrothermal extraction method; (3) adding amylase, hemicellulase and proteineous enzyme for material enzymolysis into the treated material; (4) filtering and screening so as to separate solid phase from liquid phase; (5) drying the liquid phase, thereby obtaining the feed additive with high additional values. The feed additive with high additional values, which is prepared through the method, can not only provide high protein, energy and microelements for animals, but also can reduce the use amount of antibiotics due to the probiotic functions of cello-oligosaccharide and xylo-oligosaccharide, the residual cellulose, lignin and mineral substances generated after the residues and the dregs are treated can be directly used as environment-friendly bio-fertilizers which are returned to the land, so that the economic utilization values of the residues and the dregs are greatly increased, the grains for feed are saved, and the environment pollution problem caused by the residues and the dregs is solved.

Description

technical field [0001] The invention relates to a production process of feed additives, in particular to a process for producing feed additives for livestock and poultry by using dross materials as raw materials. Background technique [0002] With the development of agriculture, the dregs of agricultural by-product processing are also increasing, such as brewing dregs (including liquor distiller's grains, brewer's grains, vinegar grains), starch dregs (including potato starch dregs, sweet potato starch dregs, tapioca starch dregs and corn starch dregs) Starch bagasse, etc.), sugar bagasse (including beet bagasse and bagasse, etc.) and pomace (including apple pomace and grape pomace, etc.). Slag is the residual watery residue after the carbohydrates in the raw material are extracted, and its water content is as high as 70% to 90%. In addition, it also contains nutrients such as crude fiber, crude protein and crude fat. Although the energy value of the solid residue in the dr...

AI Technical Summary

Problems solved by technology

(2) Easy to stick: the starch component in the dross makes it easy to agglomerate during drying, making drying more difficult

(3) Different physical shapes: the shapes of dregs include flakes, granules, and pastes, and the current processing methods are difficult to match different physical properties

(4) There are large differences in acidity and alkalinity: some are acidic and some are alkaline. For example, the pH value of koji distiller's grains is 3.3, which is acidic, and has a greater impact on the pH value of the intestinal tract of livestock and poultry.

However, this method only solves the degradation problem of lignocellulosic materials, and does not solve the problem of processing high protein and high starch content materials