Process for producing high-purity cottonseed proteins through low-protein cottonseed meal
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A technology of cottonseed protein and cottonseed meal, which is applied in the direction of grain processing, etc., can solve the problems of large investment in production equipment, high production cost, residue, etc., and achieve the effect of high precision requirements, high application value, and integrity assurance
Active Publication Date: 2020-02-21
新疆德安环保科技股份有限公司
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The invention of Xinjiang Kesai Bioengineering Co., Ltd. "Method of Extracting and Separating Protein from Degreased Cotton Meal" (ZL02108381.9) uses chemical separation methods such as acid precipitation, alkali dissolution, secondary separation, neutralization, etc. to separate and purify cottonseed protein , but this process is likely to affect the activity of cottonseed protein after extraction and separation, and if the separation of chemical solvents is not complete, it is easy to cause residues, and the investment in production equipment is large, and the production cost is high
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Embodiment 1
[0027] A process for producing high-purity cottonseed protein from low-protein cottonseed meal, said process comprising the following steps:
[0028] Step 1): Pass conventional cottonseed meal (cottonseed protein content 40%) through a grading sieve, and sieve into 3 categories according to the size of the sieve hole: diameter ≥ 3mm, diameter 3mm ~ particle size 30 mesh, particle size ≤ 30 mesh.
[0029] Among them: cotton meal particles with a diameter ≥ 3mm enter the crusher;
[0030] Cotton meal particles with a diameter of 3 mm to a particle size of 30 mesh enter the pulverizer;
[0031] Cotton meal particles with a particle size of ≤30 mesh enter the grinder.
[0032] Step 2) For the cotton meal particles entering the crusher, the sieve size at the outlet of the crusher is set to a diameter of 3mm; after being crushed by the crusher, the cotton meal particles with a diameter ≤ 3mm enter the crusher.
[0033] Step 3) For the cotton meal particles entering the pulverizer,...
Embodiment 2
[0040] A process for producing high-purity cottonseed protein from low-protein cottonseed meal, said process comprising the following steps:
[0041] Step 1): Pass conventional cottonseed meal (45% cottonseed protein content) into a grading sieve, and sieve into 3 categories according to the sieve hole size: diameter ≥ 3mm, diameter 3mm ~ particle size 30 mesh, particle size ≤ 30 mesh.
[0042] Among them: cotton meal particles with a diameter ≥ 3mm enter the crusher;
[0043] Cotton meal particles with a diameter of 3 mm to a particle size of 30 mesh enter the pulverizer;
[0044] Cotton meal particles with a particle size of ≤30 mesh enter the grinder.
[0045] Step 2) For the cotton meal particles entering the crusher, the sieve hole size at the outlet of the crusher is set to a diameter of 3mm; after being crushed by the crusher, the cotton meal particles with a diameter ≤ 3mm enter the crusher.
[0046] Step 3) For the cotton meal particles entering the pulverizer, the ...
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Abstract
The invention specifically relates to a preparation process of cottonseed proteins, in particular to a process for producing high-purity cottonseed proteins through low-protein cottonseed meal. Cottonseed hulls and cotton velvet in conventional cottonseed meal can be completely separated, the removal rate of the cottonseed hulls reaches 98%, the removal rate of the cotton velvet reaches 96%, the ordinary cottonseed meal is converted into the cottonseed proteins, the content of the cottonseed proteins can reach 60% or above, and the cottonseed proteins can be applied to aquatic feed to replacefish meal. Part of the cottonseed proteins are taken away from generated products, namely the cottonseed hulls, in the screening process of a grading screen, thus the cottonseed hulls contain 10-14% of the cottonseed proteins, and the cottonseed hulls are rich in organic matter and nutrition, have quite high application value, are applied to the field of mushroom cultivation, and can also serve ashigh-protein feed for cattle and sheep. The preparation process can be suitable for industrial large-scale continuous production, the whole product production process is at the normal temperature, chemical extraction is not involved, the activity of original cottonseed proteins is not damaged, and the content of proteins in the conventional cottonseed meal (the content of the cottonseed proteinsis 40%-45%) is increased to 60% or above.
Description
technical field [0001] The invention belongs to the field of cottonseed processing, and in particular relates to a process for preparing cottonseed protein, in particular to a process for producing high-purity cottonseed protein by utilizing low-protein cottonseed meal. Background technique [0002] Cottonseed protein is a high-quality plant protein resource with high vitamin content and balanced amino acid composition. Except for slightly lower methionine content, the rest of the essential amino acid content has reached the standards recommended by the Food and Agriculture Organization of the United Nations and the World Health Organization (FAO / WHO). It is similar to soy protein in nutritional value, far higher than cereal protein. It is widely used in chicken, duck, pig, cattle, fox, shrimp, fish and other livestock, fur animals and aquatic feed. A large number of experiments have proved that it can replace soybean meal 100% in the breeding process, which significantly re...
Claims
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Application Information
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