Process for producing protein feed by using alcohol full grains and stalk solid fermentation

A technology of protein feed and solid-state fermentation, which is applied in the direction of animal feed, animal feed, molding or processing of animal feed, etc. It can solve the problems of high labor intensity, many processing equipment, and many technical factors restricting the quality of feed, so as to save equipment and energy, increase protein content, and improve the effect of feed palatability

Inactive Publication Date: 2003-11-26
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional straw fermented feed method, the first is to mix straw raw materials such as corn straw, rice straw, wheat straw, peanuts and potato vines with wheat bran, molasses, cakes, etc. after cutting, crushing or kneading. Meal, inorganic nitrogen salts and mineral elements are fermented by microorganisms to produce feed products. The disadvantages are: the cost of added auxiliary materials is relatively high
The second is to treat the straw with ammonification or alkalization chemical methods after crushing, add fermentation essential substances, and obtain feed products through microbial fermentation. The disadvantages are: acid-base consumption, complex process, environmental pollution, high labor intensity, and feed Quality is restricted by technical factors
Its disadvantages are: long process flow, many equipment, large investment, high energy consumption, and waste liquid to be treated
The second is to centrifuge or filter the distiller's grains, evaporate and concentrate to remove water, obtain distiller's grains concentrate (filter residue), add auxiliary materials and starters, and carry out solid-state fermentation to make feed. The disadvantages are: there are many distiller's grains pretreatment equipment , high energy consumption, the removed distiller's grain filtrate has taken away soluble nutrients and needs to be recycled or processed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: Get 100g of rice distiller's grains, its dry matter concentration is 6%, allocate straw and wheat bran mixture in the ratio of 2:1, add the mixture in rice distiller's grains, mix well, then add 2% of total dry matter Urea, 4% ammonium sulfate, 0.01% lactic acid bacteria dry powder, 0.01% active brewer’s dry yeast, then add 6 μ / g of cellulase, 3 μ / g of xylanase and 1 μ of pectinase according to the weight of straw and wheat bran / g, add 50 μ / g of glucoamylase and 8 μ / g of acid protease according to the weight of wheat bran, stir well, control the moisture content of the fermentation material at 40%, and ferment at 30-35°C for 1-4 days to obtain the feed product. The crude protein content of the product is 22.65%, and the crude fiber degradation rate is about 28%.

Embodiment 2

[0023] Embodiment 2: Get 100g of rice distiller's grains, its dry matter concentration is 6%, allocate straw and wheat bran mixture in a ratio of 4:1, add the mixture into rice distiller's grains, mix well, then add 2% of total dry matter Urea, 4% ammonium sulfate, 0.01% lactic acid bacteria dry powder, 0.01% active brewer’s dry yeast, then add 6 μ / g of cellulase, 3 μ / g of xylanase and 1 μ of pectinase according to the weight of straw and wheat bran / g, add 50 μ / g of glucoamylase and 8 μ / g of acid protease according to the weight of wheat bran, stir well, control the moisture content of the fermentation material at 60%, and ferment at 30-35°C for 1-4 days to obtain the feed product. The crude protein content of the product is 20.54%, and the crude fiber degradation rate is about 30%.

Embodiment 3

[0024] Embodiment 3: get 100g of rice distiller's grains, its dry matter concentration is 12%, allocate straw and wheat bran mixture in the ratio of 3:1, add the mixture in rice distiller's grains, mix well, then add 4% of total dry matter Urea, 2% ammonium sulfate, 0.01% lactic acid bacteria dry powder, 0.01% active brewer’s dry yeast, then add 6 μ / g of cellulase, 3 μ / g of xylanase and 1 μ of pectinase according to the weight of straw and wheat bran / g, according to the weight of wheat bran, add 50 μ / g of glucoamylase and 8 μ / g of acidic protease, stir well, control the moisture content of the fermentation material at 50%, and ferment at 30-35°C for 1-4 days to obtain the feed product. The crude protein content of the product is 25.85%, and the crude fiber degradation rate is about 30%.

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Abstract

The present invention belongs to the fermented protein feed producing technology. Grain alcohol residue in 70-94 wt%, straw in 0.6-1.5 wt%, solidifying agent comprising wheat bran, urea and ammonium sulfate are mixture to regulate the moisture content of grain alcohol residue of 40-60 %; and after further mixing with composite enzyme and composite bacteria, the mixed material is fermented at 25-35 deg.c and under anaerobic condition for 1-5 days to produce the protein feed. The present invention has the advantages of saving in energy source, no pollution and the high protein content up to 28 % in the produced feed.

Description

technical field [0001] The invention relates to a method for preparing protein feed by solid-state fermentation of alcohol whole grains and straw, which belongs to the technology of preparing protein feed by fermentation. Background technique [0002] The traditional straw fermented feed method, the first is to mix straw raw materials such as corn straw, rice straw, wheat straw, peanuts and potato vines with wheat bran, molasses, cakes, etc. after cutting, crushing or kneading. Meal, inorganic nitrogen salts and mineral elements are fermented by microorganisms to produce feed products. The disadvantage is that the cost of added auxiliary materials is relatively high. The second is to treat the straw with ammonification or alkalization chemical methods after crushing, add fermentation essential substances, and obtain feed products through microbial fermentation. The disadvantages are: acid-base consumption, complex process, environmental pollutio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K10/12A23K10/14A23K10/33A23K10/37A23K10/38A23K20/10A23K20/189A23K20/20A23K40/00
CPCY02P60/87
Inventor 曾爱武周兴国袁希钢余国琮刘春江唐恒丹
Owner TIANJIN UNIV
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