Quick high-efficient cotton cake dregs gossypol-removing method

A technology for cottonseed meal and gossypol, which is applied in the field of biochemistry, can solve problems such as toxicity, and achieves the effects of low cost, easy preparation and simple process

Inactive Publication Date: 2008-09-03
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

New research shows that denatured gossypol and conjugated gossypol are also toxic
The extraction of gossypol is usually extracted with conventional organic solvents, which can only remove free gossypol in cottonseed meal, but is powerless to bind gossypol

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 1g of pretreated cottonseed cake to 10ml of 5mol / L hydrochloric acid, perchloric acid, chloric acid, hypochlorous acid, hydrofluoric acid, nitric acid, nitrous acid, phosphoric acid, hydrobromic acid, bromic acid, periodic iodine Acid, sulfuric acid, sulfonic acid, sulfurous acid, boric acid, phytic acid, trichloroacetic acid, trifluoroacetic acid, sodium hydrogen sulfate, potassium hydrogen sulfate, sodium hydrogen phosphate, sodium dihydrogen phosphate, potassium hydrogen phosphate, potassium dihydrogen phosphate, chlorine Ammonium chloride, ammonium nitrate, ammonium sulfate, ammonium bisulfate or ammonium dihydrogen phosphate, or two or more of them mixed with 100% ethanol to obtain a strong acidic ethanol solution, put in a water bath at 100°C 80000W Under the action of high-power microwaves, take it out after detoxification for 1min, vacuum pump filtration, and separate the filtrate, then neutralize the filtrate, constant volume, let it stand, and measure the c...

Embodiment 2

[0025] Add 1g of pretreated cottonseed cake to 200ml of hydrochloric acid, perchloric acid, chloric acid, hypochlorous acid, hydrofluoric acid, nitric acid, nitrous acid, phosphoric acid, hydrobromic acid, bromic acid, high Iodic acid, sulfuric acid, sulfonic acid, sulfurous acid, boric acid, phytic acid, trichloroacetic acid, trifluoroacetic acid, sodium hydrogen sulfate, potassium hydrogen sulfate, sodium hydrogen phosphate, sodium dihydrogen phosphate, potassium hydrogen phosphate, potassium dihydrogen phosphate, Ammonium chloride, ammonium nitrate, ammonium sulfate, ammonium bisulfate or ammonium dihydrogen phosphate, or two or more of them mixed with 30% ethanol in a strong acidic ethanol solution, put in a water bath at 1°C , take it out after detoxification under the action of 10000W ultrasonic wave for 7 hours, vacuum pump suction filtration, separate the filtrate, then neutralize the filtrate, constant volume, let stand, measure the gossypol content by spectrophotometr...

Embodiment 3

[0027] Add 1g of pretreated cottonseed cake to 30ml of 0.9mol / L hydrochloric acid, perchloric acid, chloric acid, hypochlorous acid, hydrofluoric acid, nitric acid, nitrous acid, phosphoric acid, hydrobromic acid, bromic acid, high Iodic acid, sulfuric acid, sulfonic acid, sulfurous acid, boric acid, phytic acid, trichloroacetic acid, trifluoroacetic acid, sodium hydrogen sulfate, potassium hydrogen sulfate, sodium hydrogen phosphate, sodium dihydrogen phosphate, potassium hydrogen phosphate, potassium dihydrogen phosphate, Ammonium chloride, ammonium nitrate, ammonium sulfate, ammonium bisulfate or ammonium dihydrogen phosphate, or two or more of them are mixed and mixed with 30-100% ethanol solution to obtain strong acidic ethanol solution, put in 50 Mechanically stir at 1000r / min in a water bath at ℃, take it out after 4 hours, filter it with a vacuum pump, and separate the filtrate, then neutralize the filtrate, constant volume, let it stand, and measure the content of goss...

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PUM

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Abstract

The invention discloses a high-efficient and environment-friendly method for quickly removing gossypol from cottonseed cake. The method comprises the steps of selecting cottonseed cake ingredients; adding the cottonseed cake ingredients at the ingredient-liquid ratio of 1: (10-1): 200g/ml into strong acidic ethanol-water solution in the concentration of 0.01-5.0mol/L or weak acidic ethanol-water solution in the mass percentage concentration of 0.01%-80% which serve as detoxifying liquid; extracting for 1min- 7hours at the temperature of 1-100 DEG C and at the stirring speed of 0-1000r/m; taking out for filtering and separating the cottonseed cake; and drying the cottonseed cake to obtain non-toxic cottonseed cake with gossypol removing rate being 98% or above. The method for removing the gossypol has the advantages of simple process, low cost, quickness and high efficiency. Toxin removing agents are easy to get and prepare, non-toxic, pollution-free, and low in consumption. The method for removing the gossypol has high gossypol removing rate so as to meet the feed standard and greatly improve the value added to the processing and utilization of the cottonseed cake, thereby having a good industrial application prospects.

Description

technical field [0001] The invention relates to a fast and efficient method for removing gossypol from cottonseed cake, belonging to the field of biochemistry. Background technique [0002] Cotton is a plant of the genus Gossypium Malvaceae, native to the subtropical zone. Cottonseed is the seed of the cotton crop. In 2007, the total output of cottonseed in the world reached 44.15 million tons. Cottonseed cake is a huge by-product produced in the cottonseed oil industry. The output of cottonseed cake in my country is very large (about 4 million tons / year), and cottonseed cake is abundant. source of protein. But gossypol in cottonseed meal seriously affects its utilization as protein resource. [0003] Gossypol is a polyphenolic compound contained in cotton seeds, roots, and stems. The toxicity of gossypol is mainly caused by active aldehyde groups and hydroxyl groups. It is harmful to livestock as feed, especially to the male reproductive system and liver. If it is seriou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/14
Inventor 王承明吴媛瑾高洁芬
Owner HUAZHONG AGRI UNIV
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