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Protein feed prepared by adopting rapeseed dregs and preparation method thereof

A protein feed, rapeseed meal technology, applied in animal feed, animal feed, application and other directions, can solve the problems of reducing the utilization rate of rapeseed meal, and achieve the effects of improved palatability, easy operation of production process, and simple production process

Inactive Publication Date: 2010-06-02
SICHUAN ANIMTECH FEED CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because rapeseed meal contains high anti-nutritional factors such as glucosinolate (generally 95 μmol / g), tannin and sinapine, the utilization rate of rapeseed meal in feed is greatly reduced.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] The preparation method of the present invention is:

[0022] 1) Raw material processing: finely grind the fresh rapeseed meal into rapeseed meal powder with a pulverizer, the water content of the rapeseed meal is about 10%, and the aperture of the sieve of the pulverizer is 3mm.

[0023] 2) Strain preparation: It is a common technique to adopt three-stage activation culture for seed production.

[0024] ① Inoculate the Candida tropicalis on the slant of the test tube onto the standard malt agar medium, and culture it in the incubator at 20-25°C for 2-3 days;

[0025] ② After high-temperature sterilization of the malt agar medium, cool it down to 22-25°C and put it into a test tube, pick a platinum bacterium in a sterile box and insert it into the test tube, and cultivate it at 25°C for 20-24 hours;

[0026] ③ Prepare a 2-liter Erlenmeyer flask, use 25-35% wort juice and 45-55% molasses as the medium, add culture standard nutrient salts and 15-30% of 7% dilute sucrose s...

Embodiment 1

[0034] 1) Weigh 950 kg of crushed pre-extracted rapeseed meal, 40 kg of wheat bran and 10 kg of conditioning agent, and prepare 3 liters of bacterial seed solution in a triangular flask. Among them, the conditioner consists of 0.1% KH 2 PO 4 , 0.8% urea, 0.1% MgSO 4 , 0.2% CuSO 4 .5H 2 O and corn flour are mixed, the moisture content of rapeseed meal is 10%, and the moisture content of wheat bran is negligible in production.

[0035] 2) Divide the above materials into 10 parts on average for mixing by hand or a small mixer. For every 100 kg of the above materials, add 300 ml of bacterial seed solution and 40 kg of clean water and mix well, then use 8 standard bamboo plaques to make the same amount Divide evenly.

[0036] 3) Put the installed bent plate on the shelf, 1000 kg can hold 4 units of 20-layer rack, surround the fermentation unit with nylon cloth to keep warm and moisturize, and start fermentation. The fermentation temperature is controlled at 30°C.

[0037] 4) ...

Embodiment 2

[0042]According to the method of Example 1, the moisture produced by the pre-pressing process is 960 kilograms of rapeseed meal of 10.8%, 20 kilograms of wheat bran and washed rice bran, 20 kilograms of conditioning agent, and changing the amount of urea in the conditioning agent is 0.3% and sulfuric acid The amount of copper used is 0.4%, water is added to make the moisture content of the material reach 50%, the fermentation temperature is controlled at 28° C., and the fermentation is carried out for 40 hours. After the fermentation is completed, the moisture content of the naturally dried feed reaches 10.8%. Some nutritional test indicators tested after product sampling:

[0043] Test items

[0044] Test items

[0045] In the present invention, the prepared undried protein feed can also be used as a solid strain instead of a strain liquid for secondary fermentation production, and a conditioner, corresponding water and untreated rapeseed meal powder are ad...

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PUM

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Abstract

The invention provides a protein feed prepared by adopting rapeseed dregs, which can effectively reduce the glucosinolate content in the rapeseed dregs by more than 65%. The preparation method for preparing protein feed by the rapeseed dregs comprises the following steps: (1) crushing the rapeseed dregs into rapeseed dreg powder; (2) preparing strains; (3) uniformly mixing and stirring 94-96% of rapeseed dreg powder, 1-3% of modifier, 3-4% of wheat bran, and the strains with clean water, wherein the modifier is formed by mixing 0.1-0.5% of KH2PO4, 0.2-1.5% of urea, 0.05-0.2% of MgSO4, 0.1-0.6% of CuSO4*5H2O, corn flour and / or washing rice bran; (4) filling the uniformly stirred leavening in a fermentation koji tray and arranging the fermentation koji tray on a fermentation koji tray rack; and (5) controlling fermentation temperature to be 28-35 DEG C and fermentation time to be 32-48 hours. The prepared protein feed reduces the glucosinolate content in the original rapeseed dregs by more than 65%, reaches the protein content to 44%, obviously improves the palatability, further rationalizes the amino acid structure, is more beneficial to the digestive absorption of beasts and birds, and has higher feeding value.

Description

technical field [0001] The present invention relates to a method for preparing protein feed by a solid-state fermentation method, in particular to a method for preparing protein feed by microbial fermentation technology using rapeseed meal (cake) obtained after pre-pressing or pre-pressing and extracting oil from a vegetable oil factory as raw material and its preparation method. Background technique [0002] With the development of animal husbandry and feed industry, the shortage of feed protein resources has become a common problem in the world, which seriously restricts the development of animal husbandry. [0003] Rapeseed meal is a by-product obtained after pre-pressing or pre-pressing and extracting oil from rapeseed. It is a high-protein feed with high utilization value, and its crude protein content is 35.0-45.07% (weight percentage, Same below), crude fat 2.0-3.0%, carbohydrate 24.0-32.0%, glucosinolate 7.0-10.0%. Compared with soybean cake, rapeseed meal has a mo...

Claims

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Application Information

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IPC IPC(8): A23K1/14A23K1/175A23K1/22A23K10/18A23K10/30
Inventor 屈东邹成义余丹李斌刘进远刘忠敏杨加豹汪林书
Owner SICHUAN ANIMTECH FEED CO LTD
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