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Preparation method of protein feed

A technology of protein feed and fermented raw materials, applied in animal feed, animal feed, application, etc., can solve the problem of high production cost, achieve the effect of low production conditions, improve nutrition, and promote rapid growth and development

Inactive Publication Date: 2014-09-24
HUNAN AGRI PRODS PROCESSING INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the technology of microbial conversion of cellulose to produce protein-enhanced feed is in the laboratory research stage. Due to factors such as technical feasibility and high production costs, there is still a long way to go from practical application and industrialization.

Method used

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  • Preparation method of protein feed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The citrus pomace in this example is taken from Wenzhou satsuma.

[0031] 1) Raw material pretreatment: air half-dry 5Kg of citrus peels until the ignorant water is precipitated, remove mud, stones, bellflowers, leaves and other sundries, and then cut them into 1cm×1cm square blocks as fermentation raw materials;

[0032] Another 5Kg of citrus peels was air-dried until completely dry, and pulverized into a particle diameter of 40 mesh citrus peels powder as a raw material for Aspergillus niger fermentation.

[0033] 2) Cultivation of fermentation strains:

[0034] Cultivation of Aspergillus niger: Add 30g of citrus peel powder, 10g of bran, 15g of urea, 5g of (NH 4 ) 2 SO 4 , 5g of KH 2 PO 4 , 2g of MgSO 4 ·7H 2 0 and 1000mL sterile water, shake up, adjust the pH value to 6 with 0.35mol / L sodium hydroxide solution and / or 0.50mol / L hydrochloric acid solution to obtain the first fermentation raw material; after moist heat sterilization, insert Aspergillus niger for...

Embodiment 2

[0041] The citrus peel in the present embodiment is Jiangyong pomelo peel.

[0042] 1) Raw material pretreatment: Dry 5Kg of Jiangyong pomelo peel dregs in the air until the ignorant water precipitates out, remove mud, stones, platycodon grandiflora, leaves and other sundries, and then cut them into 1cm×1cm square blocks as fermentation raw materials;

[0043] Another 5 Kg of Jiangyong pomelo peel dregs were air-dried until completely dry, crushed into Jiangyong pomelo peel residue powder with a particle size of 40 mesh, and used as a raw material for Aspergillus niger fermentation.

[0044] 2) Cultivation of fermentation strains:

[0045] Cultivation of Aspergillus niger: Adding 30g particle diameter in the triangular flask is 40 mesh Jiangyong pomelo peel slag powder, 10g of bran, 15g of urea, 5g of (NH 4 ) 2 SO 4 , 5g of KH 2 PO 4 , 2g of MgSO 4 ·7H 2 0 and 1000mL sterile water, shake up, adjust the pH value to 6 with 0.35mol / L sodium hydroxide solution and / or 0.50mo...

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Abstract

The invention relates to a preparation method of protein feed. The preparation method comprises the following steps: performing moist heat sterilization on fermentation raw materials, cooling for later use, inoculating 10% of mixed strain liquid of aspergillus niger and candida utilis into the sterilized fermentation raw materials, and performing solid-state fermentation at 30 DEG C for 120 hours to obtain a fermentation material; drying the fermentation material and grinding to obtain the protein feed. The prepared feed has relatively high nutritional values; especially the single-cell protein content is remarkably increased; in addition, the feed is low in cost, pollution-free and favorable for increasing comprehensive utilization degree of citruses, and provides a feasible way for converting renewable biological resources into single cell protein and adding feed varieties.

Description

technical field [0001] The invention belongs to the field of feed, and in particular relates to a preparation method of protein feed. Background technique [0002] my country is the main origin center and big producer of citrus in the world. In 2013, the planting area of ​​citrus was 2.43 million hectares and the output was 32.76 million tons, ranking first in the world. Fresh citrus pomace is the main by-product of the citrus processing industry (accounting for 40-60% of the total weight of citrus), mainly composed of citrus peel (60%-65%), shreds and scraps (30%-35%), seeds ( 0%~10%), its conventional nutrients are: crude protein 7.2%~10.5%, crude fiber 8.6%~9.7%, crude ash 3.1%~4.3%, crude fat 2.4%~3.9%, nitrogen-free leaching 61.7% to 71.4% of organic ingredients and minerals such as 0.4% to 0.7% of calcium and 0.06% to 0.09% of phosphorus; at present, the treatment of pomace has become the number one problem for domestic citrus processing enterprises. In countries wit...

Claims

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Application Information

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IPC IPC(8): A23K1/14A23K1/00A23K10/12A23K10/37
CPCY02P60/87
Inventor 单杨李高阳苏东林付复华何建新刘伟
Owner HUNAN AGRI PRODS PROCESSING INST
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