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A production process for extracting cottonseed oil and gossypol from cottonseed germ slices

A technology of cottonseed germ flakes and cottonseed oil, which is applied in the direction of fat oil/fat production, fat production, fat oil/fat refining, etc. It can solve the problems of resource waste and achieve the effect of improving utilization rate, simple processing method and high purity

Active Publication Date: 2019-12-31
山东巧妻食品科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, the existing cottonseed oil refining process only retains refined cottonseed oil, and gossypol is discarded together with other wastes, resulting in a great waste of resources

Method used

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  • A production process for extracting cottonseed oil and gossypol from cottonseed germ slices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of production technology of extracting cottonseed oil and gossypol from cottonseed germ sheet of the present invention comprises steps:

[0029] (1) Cottonseed germ slices are leached by acetone-n-hexane mixed solvent (the volume ratio of acetone and n-hexane is 1:19), the leaching temperature is 50°C, and the leaching time is 60 minutes, and then filtered to obtain the filter residue I and the extract containing gossypol liquid, filter residue I enters step (2), contains the extract of gossypol, reclaims the solvent, and obtains gossypol crude product I; the mass volume ratio of cottonseed germ slices and acetone-n-hexane mixed solvent is 1g: 12mL;

[0030] (2) Filter residue Ⅰ is leached with methanol to obtain filter residue Ⅱ and methanol leaching solution. The methanol leaching solution enters step (3), and filter residue Ⅱ is passed through a mixed solution of liquefied propane and liquefied butane (the volume ratio of liquefied propane and liquefied butane ...

Embodiment 2

[0034] A kind of production technology of extracting cottonseed oil and gossypol from cottonseed germ sheet of the present invention comprises steps:

[0035] (1) Cottonseed germ slices are leached by acetone-n-hexane mixed solvent (the volume ratio of acetone and n-hexane is 1:19), the leaching temperature is 60°C, and the leaching time is 110 minutes, and filtered to obtain the filter residue I and the extract containing gossypol liquid, filter residue I enters step (2), contains the extract of gossypol, reclaims the solvent, and obtains gossypol crude product I; the mass volume ratio of cottonseed germ slices and acetone-n-hexane mixed solvent is 1g: 15mL;

[0036] (2) Filter residue Ⅰ is leached with methanol to obtain filter residue Ⅱ and methanol leaching solution. The methanol leaching solution enters step (3), and filter residue Ⅱ is passed through a mixed solution of liquefied propane and liquefied butane (the volume ratio of liquefied propane and liquefied butane is 1...

Embodiment 3

[0040] A kind of production technology of extracting cottonseed oil and gossypol from cottonseed germ sheet of the present invention comprises steps:

[0041] (1) Cottonseed germ slices are leached by acetone-n-hexane mixed solvent (the volume ratio of acetone and n-hexane is 1:19), the leaching temperature is 60°C, and the leaching time is 90 minutes, and filtered to obtain the filter residue I and the extract containing gossypol liquid, the filter residue I enters step (2), contains the extract of gossypol, reclaims the solvent, and obtains gossypol crude product I; the mass volume ratio of cottonseed germ slices and acetone-n-hexane mixed solvent is 1g: 13mL;

[0042] (2) Filter residue Ⅰ is leached with methanol to obtain filter residue Ⅱ and methanol leaching solution. The methanol leaching solution enters step (3), and filter residue Ⅱ is passed through a mixed solution of liquefied propane and liquefied butane (the volume ratio of liquefied propane and liquefied butane is ...

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Abstract

The invention discloses a production process for extracting cottonseed oil and gossypol from cottonseed embryo pieces. The production process comprises the following steps: (1) leaching cottonseed embryo pieces in a acetone n-hexane mixed solvent at 50-60 DEG C for 60-110 minutes, filtering so as to obtain a filter residue I and an extract containing gossypol, feeding the filter residue I to the step (2), and recycling the solvent from the extract containing gossypol so as to obtain a gossypol crude product I; (2) leaching the filter residue I with methanol so as to obtain a filter residue II and a methanol leachate, feeding the methanol leachate to the step (3), leaching the filter residue II with a mixed solution of liquefied propane and liquefied butane at 50-55 DEG C for 70-90 minutes, and filtering so as to obtain cottonseed oil; (3) adding phenylamine for complexing into the methanol leachate, performing solid-liquid separation so as to obtain diphenylamine gossypol, recycling the solvent, and decomplexing and crystallizing the diphenylamine gossypol so as to obtain a crude gossypol product II; (4) combining the gossypol crude product I and the gossypol crude product II, and recrystallizing by using an ethyl acetate dichloroethane mixed solvent, thereby obtaining gossypol.

Description

technical field [0001] The invention relates to a production process, in particular to a production process for extracting cottonseed oil and gossypol from cottonseed germ sheets. The invention belongs to the technical field of cottonseed oil extraction. Background technique [0002] Cottonseed oil is the oil squeezed from cottonseeds. It is divided into pressed cottonseed oil, leached cottonseed oil, genetically modified cottonseed oil, cottonseed crude oil, and finished cottonseed oil. A large amount of essential fatty acids are best mixed with animal fat for consumption. [0003] However, it should be noted that eating crude cottonseed oil can cause damage to spermatogenic cells, resulting in testicular atrophy, inability to produce sperm, and male infertility, mainly because crude cottonseed oil contains a component called gossypol. Generally, heating or alkali treatment is used to destroy the structure of gossypol and reduce its content. It is generally believed that...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B1/10C11B3/00C07C45/78C07C45/79C07C45/85C07C47/57
CPCC07C45/78C07C45/79C07C45/85C11B1/10C11B3/008C07C47/57
Inventor 孟德旺
Owner 山东巧妻食品科技有限公司