Fermented feed additive capable of reducing cost and improving effect and preparation method of fermented feed additive

Abstract

The preparation method comprises the following steps: uniformly mixing and stirring corn steep liquor, bran, bran shell powder and puffed soybean meal to obtain a mixture, and taking the mixture as a fermentation substrate; mixing the compound enzyme preparation and the compound probiotics to obtain a zymophyte enzyme agent; and inoculating the zymocyte enzyme agent into the fermentation substrate, uniformly mixing, sealing, standing and fermenting to obtain the fermented feed additive. The fermented feed additive is prepared from the corn steep liquor as a protein raw material by adopting a bacterium-enzyme synergistic fermentation technology, so that the problem that the feed protein raw material is high in price is relieved, the finished product of the fermented feed additive does not need to be dried, the production cost is low, and cost reduction and benefit improvement are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of biological fermentation feed, in particular to a fermentation feed additive for cost reduction and efficiency improvement and a preparation method thereof. Background Art

[0002] In recent years, due to the continuous increase in the prices of high-quality feed protein raw materials such as fish meal and soybean meal, it has posed a great cost pressure on feed enterprises. The feed industry urgently needs to develop protein raw materials with high protein content and low price in order to reduce costs and increase efficiency and boost the confidence of farming.

[0003] Corn steep liquor is a by-product in the production process of corn starch, which is formed by concentrating the corn steeping liquor obtained after soaking with sulfurous acid solution. Corn steep liquor contains rich soluble proteins, amino acids, reducing sugars, vitamins, lactic acid, etc. The crude protein content of solidified corn steep liquor is about 50%. Therefore, corn steep liquor is a potentially valuable protein raw material for livestock and poultry feed. Using it as a feed protein raw material can replace expensive soybean meal and greatly reduce the feed cost.

[0004] However, corn steep liquor contains various toxins and anti-nutritional factors, such as sulfite, phytate, aspergillus toxin, etc. If added to the feed without treatment, it will not only greatly reduce the feed utilization rate, but also cause livestock and poultry poisoning, which greatly limits its application in the feed industry. Summary of the Invention

[0005] The present invention provides a fermentation feed additive for cost reduction and efficiency improvement and a preparation method thereof. By using the technology of combined fermentation of bacteria and enzymes, corn steep liquor is used as a protein raw material to prepare a fermentation feed additive. The finished product does not require drying treatment, has low production cost, high content of organic acids and beneficial bacteria, can significantly improve the palatability of feed and the intestinal health of livestock and poultry, reduce the pollution to the environment caused by nitrogen and phosphorus emissions in the farm, relieve the problem of high price of feed protein raw materials, and is beneficial to cost reduction and efficiency improvement.

[0006] The technical solution of the present invention is realized as follows: A fermentation feed additive for cost reduction and efficiency improvement includes 10-30 parts of corn steep liquor, 20-30 parts of wheat bran, 20-30 parts of bran shell powder, 5-10 parts of expanded soybean meal, 6-12 parts of compound enzyme preparation, and 0.4-4 parts of compound probiotic.

[0007] Further, the compound enzyme preparation includes 2-4 parts of cellulase, 2-4 parts of protease, and 2-4 parts of lipase.

[0008] Further, the compound probiotic includes 0.1-1 part of Lactobacillus plantarum, 0.1-1 part of Saccharomyces cerevisiae, 0.1-1 part of Bacillus coagulans, and 0.1-1 part of Lactobacillus acidophilus.

[0009] Further, the solid content of the corn steep liquor is 40-42 wt.%.

[0010] A preparation method of a fermentation feed additive for cost reduction and efficiency improvement, comprising the following steps:

[0011] (1) Mix 10 - 30 parts of corn steep liquor, 20 - 30 parts of wheat bran, 20 - 30 parts of bran shell powder, and 5 - 10 parts of extruded soybean meal evenly, and use it as the fermentation substrate;

[0012] (2) Mix 6 - 12 parts of compound enzyme preparation and 0.4 - 4 parts of compound probiotics to obtain the fermentation bacterial enzyme agent;

[0013] (3) Inoculate the fermentation bacterial enzyme agent in step (2) into the fermentation substrate in step (1), mix evenly, and then seal and ferment statically to obtain the fermentation feed additive.

[0014] A fermentation feed additive for cost reduction and efficiency improvement, prepared by the described preparation method, wherein the lactic acid content in the fermentation feed additive is not less than 3%, the lactic acid bacteria content is not less than 1.0×10 7 CFU / g, the moisture content is not higher than 45%, and the protein content is not less than 9%.

[0015] Advantages of the present invention:

[0016] 1. The present invention makes full use of industrial and agricultural by-products such as corn steep liquor, wheat bran, and bran shell powder to reduce raw material costs; the prepared fermentation feed additive does not require drying treatment and can be used directly, reducing processing costs; multiple bacterial enzymes ferment synergistically to reduce time costs.

[0017] 2. The fermentation feed additive prepared by the present invention contains protease, lipase, cellulase, and a large amount of lactic acid, which can greatly reduce the crude fiber content, improve the feed flavor, improve the taste, and thus increase the feed intake of livestock and poultry. Specific embodiments

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Example 1

[0020] A preparation method of a fermentation feed additive for cost reduction and efficiency improvement, comprising the following steps:

[0021] (1) Mix 15 parts of corn steep liquor, 20 parts of wheat bran, 20 parts of bran shell powder, and 6 parts of extruded soybean meal evenly, and use it as the fermentation substrate;

[0022] (2) Mix 2 parts of cellulase, 2 parts of protease, 2 parts of lipase, 0.3 part of Lactobacillus plantarum, 0.5 part of Saccharomyces cerevisiae, 0.3 part of Bacillus coagulans and 0.3 part of Lactobacillus acidophilus to obtain a fermented bacterial enzyme preparation;

[0023] (3) Inoculate the fermented bacterial enzyme preparation in step (2) into the fermentation substrate in step (1). After mixing evenly, seal and let it ferment statically. The temperature for static fermentation is about 36 °C and the time is 72 h to obtain a fermented feed additive.

[0024] Example 2

[0025] A preparation method of a cost-reducing and efficiency-increasing fermented feed additive, comprising the following steps:

[0026] (1) Mix 20 parts of corn steep liquor, 25 parts of wheat bran, 25 parts of bran shell powder and 8 parts of expanded soybean meal evenly by stirring as the fermentation substrate;

[0027] (2) Mix 3 parts of cellulase, 2 parts of protease, 3 parts of lipase, 0.5 part of Lactobacillus plantarum, 0.7 part of Saccharomyces cerevisiae, 0.5 part of Bacillus coagulans and 0.6 part of Lactobacillus acidophilus to obtain a fermented bacterial enzyme preparation;

[0028] (3) Inoculate the fermented bacterial enzyme preparation in step (2) into the fermentation substrate in step (1). After mixing evenly, seal and let it ferment statically. The temperature for static fermentation is about 36 °C and the time is 72 h to obtain a fermented feed additive.

[0029] Example 3

[0030] A preparation method of a cost-reducing and efficiency-increasing fermented feed additive, comprising the following steps:

[0031] (1) Mix 30 parts of corn steep liquor, 30 parts of wheat bran, 30 parts of bran shell powder and 10 parts of expanded soybean meal evenly by stirring as the fermentation substrate;

[0032] (2) Mix 4 parts of cellulase, 3 parts of protease, 4 parts of lipase, 0.8 part of Lactobacillus plantarum, 1 part of Saccharomyces cerevisiae, 1 part of Bacillus coagulans and 1 part of Lactobacillus acidophilus to obtain a fermented bacterial enzyme preparation;

[0033] (3) Inoculate the fermented bacterial enzyme preparation in step (2) into the fermentation substrate in step (1). After mixing evenly, seal and let it ferment statically. The temperature for static fermentation is about 36 °C and the time is 72 h to obtain a fermented feed additive.

[0034] The indexes of the fermented feed additives prepared in Examples 1-3 are shown in the following table:

[0035]

[0036]

[0037] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A fermentation feed additive for cost reduction and efficiency improvement, characterized in that: It includes 10 - 30 parts of corn steep liquor, 20 - 30 parts of wheat bran, 20 - 30 parts of chaff powder, 5 - 10 parts of extruded soybean meal, 6 - 12 parts of compound enzyme preparation, and 0.4 - 4 parts of compound probiotics.

2. The fermentation feed additive for cost reduction and efficiency improvement according to claim 1, wherein: The compound enzyme preparation includes 2 - 4 parts of cellulase, 2 - 4 parts of protease, and 2 - 4 parts of lipase.

3. A cost-reducing and efficiency-increasing fermented feed additive according to claim 1, characterized in that: The compound probiotics includes 0.1 - 1 part of Lactobacillus plantarum, 0.1 - 1 part of Saccharomyces cerevisiae, 0.1 - 1 part of Bacillus coagulans, and 0.1 - 1 part of Lactobacillus acidophilus.

4. A fermentation feed additive for cost reduction and efficiency improvement according to claim 1, characterized in that: The solid content of the corn steep liquor is 40 - 42 wt.%.

5. A method for preparing the fermented feed additive according to any one of claims 1-4, characterized in that, It includes the following steps: (1) Mix 10 - 30 parts of corn steep liquor, 20 - 30 parts of wheat bran, 20 - 30 parts of chaff powder, and 5 - 10 parts of extruded soybean meal evenly by stirring to obtain a fermentation substrate. (2) Mix 6 - 12 parts of the compound enzyme preparation and 0.4 - 4 parts of the compound probiotics to obtain a fermentation bacterial enzyme agent. (3) Inoculate the fermentation bacterial enzyme agent in step (2) into the fermentation substrate in step (1), mix evenly, then seal and ferment statically to obtain a fermented feed additive.

6. A cost - reducing and efficiency - enhancing fermented feed additive is prepared by the preparation method described in claim 5. The content of lactic acid in the fermented feed additive is not less than 3%, the content of lactic acid bacteria is not less than 1.0×107 CFU / g, the moisture content is not higher than 45%, and the protein content is not less than 9%.

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