High-efficiency and low-cost fermentation feed processing method based on bean dregs and application

Abstract

The invention belongs to the field of biological feed, and relates to a high-efficiency and low-cost fermentation feed processing method based on bean dregs and application; the processing method comprises the steps of activating a strain to obtain fermentation seed liquid of bacillus, yeast and lactic acid bacteria; mixing the bean dregs with bran or rice bran, then adding sucrose, adding cellulase, cellobiase, glucoamylase, xylanase, mannanase and beta-glucanase, mixing to obtain a primary aerobic fermentation medium, inoculating the bacillus fermentation seed liquid and the yeast fermentation seed liquid for primary aerobic fermentation, obtaining a primary fermentation mixture after fermentation, and then inoculating the lactic acid bacteria fermentation seed liquid for anaerobic fermentation under sealed conditions to obtain a finished product; an bacteria-enzyme cooperative fermentation and aerobic and anaerobic step-by-step fermentation mode is adopted, the fermentation is completed, the conversion degree of soybean peptide is high, the removal rate of trypsin inhibitor is 85% or above, each mycotoxin is lower than the feed hygiene limit standard of China; the feed is good in palatability, and favored by animals, and the economic efficiency is high.

Description

technical field [0001] The invention belongs to the field of biological feed, in particular to a high-efficiency and low-cost fermented feed processing method based on bean dregs and its application. Background technique [0002] Okara is the main by-product in the process of producing soybean milk, tofu and other soybean products, and its output is huge. Okara is rich in nutrients and consists of protein, cellulose, fat, amino acids, vitamins and a small amount of other organic matter, and can be used as animal feed. However, in actual production, most of the bean dregs are abandoned due to their relatively large water content, rough taste, easy corruption, and difficult transportation. This not only wastes resources, but also causes environmental pollution. In addition, soybean dregs contain anti-nutrient substances such as trypsin inhibitors, antigenic proteins, and goiter. Some farmers directly feed them to animals after high-temperature cooking. This will not eliminat...

AI Technical Summary

Problems solved by technology

[0003] At present, there have been some studies on bean dregs feed, such as patent CN 106509350A, which uses bean dregs, corn flour and wheat husks as fermentation raw materials, and after they are mixed evenly, deoxidation and pressure compression treatment are required. This processing method is laborious and laborious, and the fermentation cycle is longer Long; such as patent CN 105961900A needs to add raw materials such as yellow bark, Phellodendron cortex, northern ginseng sand, bile wood, coconut fruit, squid whiskers, etc.; patent CN 105265281A needs to add Niu Dali, orange peel, honeysuckle, persimmon, fish jelly, etc.; Add purple cabbage, Cordyceps militaris, peony bark, Qin bark, chrysanthemum petals, kapok, reed flower, etc. The raw materials required by these three public invention patents are not easy to obtain from general farms or feed factories, and the cost of raw materials is relatively high. The cost of cooking, drying, and granulation is high, which is not conducive to large-scale promotion and production, and cannot obtain considerable economic benefits; in existing research reports, yeast, bacillus or lactic acid bacteria are also used for fermentation, but no enzymes are added The preparation is fermented with bacteria and enzymes, the anti-nutritional factors are not completely degraded, and the fermentation effect is not significant; in addition, there are also research reports on the use of bean dregs to produce silage feed, but the fermentation cycle is long, time-consuming and labor-intensive, and the quality of the fermented products cannot be guaranteed ; moreover, contain a large amount of anti-nutritional factors in the bean dregs, all do not take anti-nutritional factors as detection index in the document of existing research report, how anti-nutritional factor degradation effect also has no way of knowing, it is difficult to evaluate the quality of feed product, in addition, for Changes in the content of aglycon-type soybean isoflavones contained in okara before and after fermentation are also not mentioned

Images