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Method for producing animal feed based on cottonseed meal physical, chemical and microbial detoxification technology

A technology for animal feed and cottonseed meal, applied in the direction of animal feed, animal feed, application, etc., can solve the problems of low detoxification rate and long fermentation period, and achieve the effects of simple operation, improved nutritional value and simple requirements.

Active Publication Date: 2010-04-14
食安天下(广东)食品检测技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the longer fermentation period of the microbial detoxification method and the lower detoxification rate compared with the physical and chemical method are its main disadvantages.
At present, there are few reports on the research on the combined detoxification methods of cottonseed meal by physics, chemistry and microorganisms

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1: 40 mesh mixed powders were prepared according to the weight ratio of cottonseed meal: bran: corn flour=5:3:1. The ratio of compound mineral solution is 3g / L NaNO 3 , 0.5g / L MgSO 4 ·7H 2O, 4g / LK 2 HPO 4 , 0.2g / LNaCl, 1g / L FeSO 4 , 0.4g / L MnSO 4 and 0.1g / L CuSO 4 ·5H 2 O, use this composite mineral solution to adjust the humidity of the mixed powder, so that the ratio of material to water reaches 1:0.4. Steam sterilization at 80°C for 60 minutes. The cell concentration was 3.0×10 8 The cfu / ml Saccharomyces cerevisiae culture solution was added to the steam-treated mixed powder cooled to 30° C. with 10% inoculation amount, and fermented at 15° C. for 48 hours. Then press 1% access concentration to be 6.0×10 8 The Aspergillus oryzae spore liquid of cfu / ml continued to ferment for 60 hours at 15°C.

Embodiment 2

[0044] Embodiment 2: Prepare 40 mesh mixed powders according to the weight ratio of cottonseed meal: bran: corn flour=6:2:2. The ratio of compound mineral solution is 4g / L NaNO 3 , 2g / L MgSO 4 ·7H 2 O, 1g / LK 2 HPO 4 , 0.8g / L NaCl, 0.5g / L FeSO 4 , 0.1g / L MnSO 4 and 0.5g / L CuSO 4 ·5H 2 O, use this compound mineral solution to adjust the humidity of the mixed powder, so that the ratio of material to water reaches 1:0.9. Steam sterilization at 120°C for 20 minutes. The cell concentration was 4.6×10 8 The cfu / ml Saccharomyces cerevisiae culture solution was added into the steam-treated mixed powder cooled to 50° C. with 5% inoculum, and fermented at 38° C. for 12 hours. Then according to 7% access concentration is 3.5×10 8 The Aspergillus oryzae spore liquid of cfu / ml continued to ferment for 24 hours at 40°C.

Embodiment 3

[0045] Embodiment 3: Prepare 40-mesh mixed powder according to the weight ratio of cottonseed meal: bran: corn flour=5.5: 3.6: 1.8. The ratio of compound mineral solution is 5g / L NaNO 3 , 2.5g / L MgSO 4 ·7H 2 O, 3g / L K 2 HPO 4 , 0.5g / L NaCl, 1.5g / L FeSO 4 , 1g / L MnSO 4 and 0.6g / L CuSO 4 ·5H 2 O, use this composite mineral solution to adjust the humidity of the mixed powder, so that the ratio of material to water reaches 1:1, and steam sterilize at 100°C for 40 minutes. The cell concentration was 5.8×10 8 The cfu / ml Saccharomyces cerevisiae culture solution was added into the mixed powder cooled to 35° C. after steam treatment with 2% inoculation amount, and fermented at 20° C. for 45 hours. Then press 5% access concentration to be 4.5×10 8 The Aspergillus oryzae spore liquid of cfu / ml continued to ferment for 28 hours at 20°C.

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PUM

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Abstract

The invention relates to a method for processing animal feed, and discloses a method for producing the animal feed based on cottonseed meal physical, chemical and microbial detoxification technology, comprising hot treatment, chemical treatment and microbial treatment, wherein the hot treatment is high temperature steam fumigating; the chemical treatment is composite mineral impregnation; and the microbial treatment is solid state fermentation of saccharomyces cerevisiae and aspergillus oryzae. By compound detoxification, the method greatly reduces the content of free gossypol in the cottonseed meal and leads the content of the free gossypol to reach the feed standard; simultaneously, as the microbial detoxification method is introduced, the time for hot treatment can be effectively shortened, the addition of chemical drug is reduced, and the nutritional value of the cottonseed meal can be improved.

Description

technical field [0001] The invention relates to a processing method for animal feed, in particular to a method for producing feed using cottonseed meal. Background technique [0002] my country's annual output of cottonseed is more than 10 million tons. Cottonseed meal is a by-product of cottonseed as raw material after shelling (partial shelling), delinting, and extraction of oil by leaching or pre-pressing leaching. Cottonseed meal is a plant protein feed resource with great development potential. Currently, the protein content of cottonseed meal used as feed raw material is generally about 40%, and the crude protein of cottonseed meal made from completely shelled cotton kernels is even as high as 50%. From the perspective of amino acid composition, except for the slightly lower methionine, the rest of the essential amino acids meet the standards recommended by the Food and Agriculture Organization of the United Nations and the World Health Organization (FAO / WHO). Therefor...

Claims

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Application Information

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IPC IPC(8): A23K1/14A23K10/30
Inventor 王际辉刘稳结
Owner 食安天下(广东)食品检测技术有限公司
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