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Cottonseed processing method capable of reducing free gossypol content

A technology of free gossypol and processing method, which is applied in the direction of fat production, fat oil/fat production, etc. It can solve the problem that the content of gossypol is not significantly reduced, and achieve the effect of simple and repeatable processing method, good quality of linters, and improved quality

Inactive Publication Date: 2017-06-13
合肥云都棉花有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention patent with application number 201210081019.8 discloses a cotton seed processing method that reduces damage and improves seed germination rate. The seed cotton is separated from the cotton fiber and the seed through a gin, which saves three peeling procedures and directly processes the obtained high-residual fluff seeds. Processing, improved the original dilute sulfuric acid cotton seed delinting process, but the content of gossypol was not significantly reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A cottonseed processing method for reducing free gossypol content, comprising the steps of:

[0024] (1) The cottonseeds are delinted through the Golden Lion MRQII160-10 double-layer airflow sawtooth peeling machine, and 450-550kg of cottonseeds are fed per hour. After three times of delinting to ensure that the remaining cashmere is below 4%, vacuum drying at 30°C for 40 minutes until the water content is less than 5%;

[0025] (2) Soak the cottonseeds after delinting in dilute sulfuric acid solution with a mass concentration of 5-10% for 10-15 minutes, centrifuge them in a centrifuge with a speed of 1000-1200 rpm, and put them in a rotary oven at 200°C for drying. Cottonseed kernels and cottonseed hulls are obtained through a sheller at a low speed of 40kg / min;

[0026] (3) Cottonseed kernels are fed into the flaking machine to roll out cotton kernel embryos with a thickness of 0.3-0.5mm, and the cotton kernel embryos are steamed and fried at 150-180°C, so that the c...

Embodiment 2

[0030] A cottonseed processing method for reducing free gossypol content, comprising the steps of:

[0031] (1) The cottonseeds are delinted through the Jinshi MRQII160-10 double-layer airflow sawtooth peeling machine, and 450-550kg of cottonseeds are fed per hour. After three times of delinting to ensure that the remaining cashmere is below 4%, vacuum dry at 40°C for 20 minutes until the water content is less than 5%;

[0032] (2) Soak the cottonseeds after delinting in dilute sulfuric acid solution with a mass concentration of 5-10% for 10-15 minutes, centrifuge them in a centrifuge at a speed of 1000-1200 rpm, and dry them in a rotary oven at 210°C. Cottonseed kernels and cottonseed hulls are obtained through a sheller at a low speed of 45kg / min;

[0033] (3) Cottonseed kernels are fed into the flaking machine to roll out cotton kernel embryos with a thickness of 0.3-0.5mm, and the cotton kernel embryos are steamed and fried at 150-180°C, so that the color of the cotton ke...

Embodiment 3

[0037] A cottonseed processing method for reducing free gossypol content, comprising the steps of:

[0038] (1) The cottonseeds are delinted through the Golden Lion MRQII160-10 double-layer airflow sawtooth peeling machine, and 450-550kg of cottonseeds are fed per hour. After three times of delinting to ensure that the remaining cashmere is below 4%, vacuum dry at 35°C for 30 minutes until the water content is less than 5%;

[0039] (2) Soak the cottonseed after delinting in a dilute sulfuric acid solution with a mass concentration of 5-10% for 10-15 minutes, centrifuge it in a centrifuge with a speed of 1000-1200 rpm, and dry it in a rotary oven at 220°C. Cottonseed kernels and cottonseed hulls are obtained through a sheller at a low speed of 45kg / min;

[0040] (3) Cottonseed kernels are fed into the flaking machine to roll out cotton kernel embryos with a thickness of 0.3-0.5mm, and the cotton kernel embryos are steamed and fried at 150-180°C, so that the color of the cotto...

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Abstract

The invention discloses a cottonseed processing method capable of reducing free gossypol content. The method comprises the main steps of delinting, husking, flaking, cooking, performing oil expression, packaging and the like. The cooking operation accelerates coagulation degeneration of protein, so that the gossypol is efficiently removed, the binding property of grease on cotton blank is reduced, the flowability is improved, and the structure and the surface performance of the cooked blank are suitable for squeezing to obtain oil. The cottonseed processing method provided by the invention is simple and easy to repeat, the free gossypol content of the cottonseeds is effectively reduced, and the quality of the processed cottonseed meal and the cottonseed oil is improved.

Description

technical field [0001] The invention relates to the technical field of cottonseed processing, in particular to a cottonseed processing method for reducing free gossypol content. Background technique [0002] Cottonseed contains 50-55% cottonseed, 30-35% oil in cottonseed, and 35-45% protein in cottonseed. Cottonseed is not only a good oil resource, but also a major protein resource that needs to be developed and utilized urgently. Cottonseed processing mainly includes cottonseed delinting, cottonseed hulling and kernel shell separation, cottonseed germination, pressing, refining and other steps. Gossypol is a yellow polyphenolic hydroxyl bis-naphthaldehyde compound, which mainly exists in the roots, stems, leaves and seeds of the mallow plant cotton, with the highest content in cottonseed kernels. Gossypol is a toxic substance that can cause redness, swelling and bleeding, loss of appetite, nervous disorders, weight loss, and affect fertility. Eating wool cotton oil conta...

Claims

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Application Information

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IPC IPC(8): C11B1/04C11B1/06C11B1/08
Inventor 程飞
Owner 合肥云都棉花有限公司
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