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Production method for synchronously extracting cottonseed oil and degossypolized cottonseed protein from cottonseed germ flakes

A technology for dephenolizing cottonseed protein and cottonseed germ slices, which is applied in the field of agricultural resource extraction, can solve the problems of high gossypol residue, high production cost, and long extraction time, and achieve less solvent residue, good product quality, and short extraction time Effect

Active Publication Date: 2015-06-03
安徽嘉旗粮油工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this method for extracting cottonseed oil and cottonseed dephenolized protein are long extraction time, high residual oil, high gossypol residue and high production cost

Method used

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  • Production method for synchronously extracting cottonseed oil and degossypolized cottonseed protein from cottonseed germ flakes
  • Production method for synchronously extracting cottonseed oil and degossypolized cottonseed protein from cottonseed germ flakes

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Effect test

Embodiment 1

[0051] like figure 1 and figure 2 as shown, figure 1 It is a process flow diagram of a production method for synchronously extracting cottonseed oil and dephenolized cottonseed protein from cottonseed germ sheets proposed by the present invention, figure 2 It is a simplified process flow diagram of a production method for synchronously extracting cottonseed oil and dephenolized cottonseed protein from cottonseed germ slices proposed by the present invention.

[0052] refer to figure 1 and figure 2 A production method for synchronously extracting cottonseed oil and dephenolized cottonseed protein from cottonseed germ slices proposed by the present invention, comprising the following steps

[0053] S1. Multi-stage countercurrent pulse extraction: send the cottonseed germ slices into the extractor, and at 57°C, first spray and soak the extractant with a mass fraction of cottonseed oil of 22wt%%. Fractions of 18wt%, 15wt%, 10wt%, 5wt%, 2wt%, 0.6wt%, 0wt% of the extractant ...

Embodiment 2

[0062] A production method for synchronously extracting cottonseed oil and dephenolized cottonseed protein from cottonseed germ slices proposed by the present invention comprises the following steps

[0063] S1. Multi-stage countercurrent pulse extraction: send the cottonseed germ slices into the extractor, and at 55°C, first spray and soak the extraction agent containing 24wt% cottonseed oil, and then separately 19wt%, 16wt%, 11wt%, 6wt%, 3wt%, 0.8wt%, 0wt% of the extractant were sequentially carried out eight-stage spray soaking extraction, extraction 90min, to obtain a mixed solution and cottonseed wet meal; wherein, the extractant and The mass ratio of cottonseed germ flakes is 1.2:1, and the extractant is composed of methanol and n-hexane with a mass ratio of 0.6:1;

[0064] S2. Extraction of dephenolized cottonseed protein: Send the wet cottonseed meal obtained in S1 into a steam distillation desolventization tower. The steam distillation desolventization tower is equipp...

Embodiment 3

[0072] A production method for synchronously extracting cottonseed oil and dephenolized gossypol protein from cottonseed embryo slices provided by the present invention comprises the following steps

[0073] S1. Multi-stage countercurrent pulse extraction: The cottonseed embryos are sent into the extractor, and at 60°C, firstly, the extractant containing cottonseed oil with a mass fraction of 20 wt% is sprayed and soaked for extraction, and then the cottonseed oil containing mass fraction of 17wt%, 14wt%, 9wt%, 4wt%, 1.5wt%, 0.3wt%, 0wt% of the extractant were sequentially subjected to eight-stage spray soaking extraction, and extracted for 120min to obtain a mixed solution and cottonseed wet meal; wherein, the extractant was The mass ratio to cottonseed embryo chips is 1.5:1, and the extractant is composed of methanol and n-hexane in a mass ratio of 0.4:1;

[0074] S2, extracting dephenolized gossyptin: the cottonseed wet meal obtained in S1 is sent to a steam distillation de...

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Abstract

The invention discloses a production method for synchronously extracting cottonseed oil and degossypolized cottonseed protein from cottonseed germ flakes. The method comprises the following steps: performing multi-stage countercurrent pulsed extraction, namely, feeding the cottonseed germ flakes into an extracting device, and performing N-stage spraying soaking extraction through an extracting agent containing cottonseed oil and gossypol to obtain a mixed solution and wet cottonseed meal, wherein the mass fraction of the cottonseed oil in the extracting agent at the M stage is more than that of the cottonseed oil in the extracting agent at the M-1 stage, and M is not less than 2 and not greater than N; extracting degossypolized cottonseed protein, namely, distilling the wet cottonseed meal through steam to obtain degossypolized cottonseed protein; extracting cottonseed oil, namely, performing solution division, evaporating and steam stripping for the mixed solution to obtain the cottonseed oil. With the adoption of the method, the time of extracting of degossypolized cottonseed protein can be greatly reduced, so that the problems of large energy consumption and high oil content in degossypolized protein in degossypolized cottonseed protein industrial production can be solved; the production method is free of environmental pollution, and low in production cost.

Description

technical field [0001] The invention relates to the technical field of agricultural resource extraction, in particular to a production method for synchronously extracting cottonseed oil and dephenolized cottonseed protein from cottonseed germ slices. Background technique [0002] my country is a major cotton-producing country in the world. In 2007, the output of cottonseed was 13 million tons, and 5.2 million tons of cotton meal can be obtained after processing. The nutritional value of protein contained in cottonseed meal is close to that of bean protein, and it is a good protein feed resource. my country imports a large amount of soybeans every year to produce soybean meal as feed. In 2014, it imported 71.4 million tons of soybeans and produced about 5,500 tons of soybean meal. 10,000 tons, and the price of cottonseed meal is lower than that of soybean meal and fish meal. It can be used to replace feed protein sources such as soybean meal and fish meal. It can not only redu...

Claims

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Application Information

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IPC IPC(8): C11B1/10C11B3/00C11B3/12A23J3/14
CPCB01D53/18C07K1/14C11B1/102C11B1/108C11B3/001
Inventor 王晓平满时勇周裔彬
Owner 安徽嘉旗粮油工程技术有限公司
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