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Extraction process and application of dephenolized cottonseed protein

The technology of dephenolized gossypol and extraction process is applied in the field of extraction process of dephenolized gossypol, and can solve the problems of low utilization rate of dephenolized gossypol, inability to effectively remove gossypol, and lower utilization rate of protein, so as to improve the dephenolization of gossypol. Phenol effect, reduction of free gossypol content, high apparent digestibility effect

Active Publication Date: 2021-01-15
XINJIANG XIPU BIOLOGICAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But because it contains a large amount of toxic substance free gossypol, it limits its wide application in feed
The presence of high levels of gossypol in cottonseed meal has brought about two problems: one is that it causes adverse physiological reactions; reduced protein availability
Ruminants such as cattle and sheep have greater tolerance to gossypol due to their rumen detoxification function. Therefore, cotton meal is currently widely used as a protein supplement for adult ruminants, but is rarely used in monogastric animals.
[0004] At present, the existing dephenolized cottonseed protein extraction process has problems such as inability to effectively remove gossypol, and the utilization rate of the obtained dephenolized cottonseed protein is low.

Method used

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  • Extraction process and application of dephenolized cottonseed protein
  • Extraction process and application of dephenolized cottonseed protein

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1, a kind of extraction process of dephenolized cottonseed protein

[0029] The extraction process of the dephenolized cottonseed protein comprises the following steps:

[0030] S1 Separate the shelled cottonseed from the shell and soften the cottonseed, control the softening water to 10%, soften the temperature at 42°C, squeeze the softened cottonseed, and control the output during the pressing process The temperature is 65°C, the residual oil rate of the cake embryo is controlled at 6%, and the crushed cake embryo is crushed. The diameter of the crushed cake is 3mm, and the crushed cake is dried. The temperature is 65°C, so that the moisture content of the cake reaches 3%, and the dried cake is obtained;

[0031] S2 Put the dry cake obtained in step S1 in a container, add petroleum ether, the amount of petroleum ether added is 3 times the mass of the dry cake, and extract the cake under ultrasonic conditions, the ultrasonic power is 30W, and the ultrasonic...

Embodiment 2

[0034] Embodiment 2, a kind of extraction process of dephenolized cottonseed protein

[0035] The extraction process of the dephenolized cottonseed protein comprises the following steps:

[0036] S1 Separate the shelled cottonseed from the shell and soften the cottonseed, control the softening water to 12%, soften the temperature at 50°C, squeeze the softened cottonseed, and control the output during the pressing process The temperature is 75°C, the residual oil rate of the cake embryo is controlled at 10%, and the crushed cake embryo is crushed. The diameter of the crushed cake is 8mm, and the crushed cake is dried. The temperature is 80°C, so that the moisture content of the cake reaches 5%, and the dried cake is obtained;

[0037] S2 Put the dry cake obtained in step S1 in a container, add petroleum ether, the amount of petroleum ether added is 7 times the mass of the dry cake, and extract the cake under ultrasonic conditions, the ultrasonic power is 50W, and the ultrasoni...

Embodiment 3

[0040] Embodiment 3, a kind of extraction process of dephenolized cottonseed protein

[0041] The extraction process of the dephenolized cottonseed protein comprises the following steps:

[0042] S1 Separate the shelled cottonseed from the shell and then soften the cottonseed, control the softening water to 11%, soften the temperature at 46°C, squeeze the softened cottonseed, and control the output during the pressing process The temperature is 68°C, the residual oil rate of the cake embryo is controlled at 7%, and the crushed cake embryo is crushed. The diameter of the crushed cake is 5mm, and the crushed cake is dried. The temperature is 75°C, so that the moisture content of the cake reaches 4%, and a dry cake is obtained;

[0043] S2 Put the dry cake obtained in step S1 in a container, add petroleum ether, the amount of petroleum ether added is 5 times the mass of the dry cake, and extract the cake under ultrasonic conditions, the ultrasonic power is 40W, and the ultrasoni...

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Abstract

The invention belongs to the technical field of cottonseed extraction, and particularly relates to an extraction process and application of dephenolized cottonseed protein. The extraction process of the dephenolized cottonseed protein comprises the following steps of carrying out kernel-shell separation on hulled cotton seeds, softening cotton kernels, squeezing the softened cotton kernels, crushing cake blanks subjected to squeezing treatment, and drying the crushed cake meal to obtain dried cake meal; putting the dried cake meal into a container, adding petroleum ether, leaching the cake meal under an ultrasonic condition, and performing filtering to obtain wet cake meal; putting the wet cake meal into a container, adding a solvent, performing soaking, carrying out ultrasonic treatment at room temperature, adding a dephenolizing aid, adding glacial acetic acid, carrying out ultrasonic treatment at room temperature, and performing filtering to obtain a dephenolized cottonseed proteinwet material; and drying and crushing the dephenolized cottonseed protein wet material to obtain the dephenolized cottonseed protein. According to the extraction process of the dephenolized cottonseedprotein, the gossypol removal effect is thorough, and the content of free gossypol in the prepared dephenolized cottonseed protein is low.

Description

technical field [0001] The invention belongs to the technical field of cottonseed extraction, and in particular relates to an extraction process of dephenolized cottonseed protein and its application. Background technique [0002] Cottonseed is an important vegetable oil. In the cottonseed kernel, not only the oil content can reach 35-45%, but also the protein content can reach 39%. It is an important oil and protein crop second only to soybean in the world today. For countries all over the world, cottonseed is an important plant protein resource. The annual output of cottonseed in the world is about 30 million tons, and China's cottonseed production accounts for one-third, making it the world's largest cotton-producing country. The cake produced from deoiling cottonseed accounts for five percent of the world's protein supply. In my country, cottonseed cake accounts for about 11% of the protein meal produced. [0003] Cottonseed protein feed is the collective name of thre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23J1/00A23K20/147A23K10/30A23K10/37A23K20/10A23K20/163A23K20/26A23K20/142
CPCA23J1/005A23K10/30A23K10/37A23K20/10A23K20/142A23K20/147A23K20/163A23K20/26Y02P60/87
Inventor 余忠丽恽辉吕少英崔志英
Owner XINJIANG XIPU BIOLOGICAL SCI & TECH
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