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Astragalus polysaccharide, extracting and purifying method and application thereof as tobacco moistening agent

A technology of astragalus polysaccharide and purification method is applied in the directions of tobacco, application and treatment of tobacco, and achieves the effects of obvious moisturizing effect, broad application prospect and easy operation.

Inactive Publication Date: 2014-08-13
CHINA TOBACCO HENAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no relevant report on the application of astragalus polysaccharide in cigarettes as a tobacco humectant at home and abroad

Method used

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  • Astragalus polysaccharide, extracting and purifying method and application thereof as tobacco moistening agent
  • Astragalus polysaccharide, extracting and purifying method and application thereof as tobacco moistening agent

Examples

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Embodiment 1

[0018] A method for extracting and purifying astragalus polysaccharides, comprising the steps of: extracting 300 g of crushed dry astragalus with 1800 ml of ether Soxhlet for 2 hours to remove oil, and evaporating the residue to dryness. The residue after evaporating to dryness was extracted three times with 750ml boiling water, combined the boiling water extracts obtained three times, concentrated, centrifuged, and the supernatant was taken, and the supernatant was added with absolute ethanol 3 times the volume of the clear liquid for alcohol precipitation, and stood overnight (12h), again. The precipitate was washed three times with ethanol and acetone in turn, then dissolved in distilled water, then papain with a weight of 1‰ of the precipitate was added and placed in a water bath at 50°C for 2 hours, and the protein was removed by the Sevage method. Add 8g of activated carbon and place it in a 70°C water bath to heat for 3 hours, remove the activated carbon by filtration, ...

Embodiment 2

[0021] A method for extracting and purifying astragalus polysaccharides, comprising the following steps: 300 g of crushed dried astragalus are extracted with 2000 ml of ether for 4 hours to remove oil, and the residue is evaporated to dryness. The residue after evaporating to dryness was extracted with 750ml of boiling water for 3 times, and the boiling water extracts obtained three times were combined, concentrated, centrifuged, and the supernatant was taken, and anhydrous ethanol with 3 times the volume of the clear liquid was added for alcohol precipitation, and stood for 12 hours , and centrifuge again to collect the precipitate. The precipitate was washed three times with ethanol and acetone in turn, then dissolved in distilled water, then papain with a weight of 2‰ of the precipitate was added, placed in a water bath at 50°C for 4 hours, and the protein was removed by the Sevage method. Add 8g of activated carbon and place it in a 70°C water bath to heat for 4 hours, rem...

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Abstract

The invention relates to astragalus polysaccharide and an extracting and purifying method thereof. The extracting and purifying method comprises the steps: carrying out soxhlet extraction on the crushed dry astragalus membranaceus by utilizing ether, volatilizing the residues dry, extracting the dry residues by utilizing boiling water, concentrating and centrifuging the boiling water extraction liquid, collecting the supernatant, precipitating the supernatant by utilizing alcohol, standing, centrifuging again, collecting precipitate, washing, dissolving the precipitate by utilizing distilled water, adding 0.1-0.2% of papain, placing in a water bath with a temperature of 50+ / - 5 DEG C for 2h to 4h, removing the protein by adopting a Sevage method;decoloring by utilizing active carbon, concentrating under reduced pressure, cooling and dialyzing by using flowing water; precipitating with alcohol again and standing; and drying the precipitate at the temperature of 60 to 70 DEG C to obtain crude polysaccharide. Tests show that the astragalus polysaccharide has a good physical and sense moistening effect on cigarette and can reduce the irritation and offensive odor of the cigarette, the roundness and comfort of the cigarette smoke can be improved, and the astragalus polysaccharide can be used as a tobacco moistening agent with excellent performance in the cigarette.

Description

technical field [0001] The invention belongs to the technical field of humectants, and in particular relates to an astragalus polysaccharide, an extraction and purification method and its application as a humectant for tobacco. Background technique [0002] At present, glycerin, propylene glycol, sorbitol and other polyhydroxy substances are mainly used as humectants in the cigarette industry in my country. The main purpose of using such humectants is to maintain the moisture content of shredded tobacco during processing and improve the processing resistance of shredded tobacco. The above-mentioned humectant has unsatisfactory effects on maintaining the moisture content of finished cigarettes and improving smoking comfort. [0003] Polysaccharides are composed of a large number of monosaccharides, and a large number of hydroxyl groups form hydrogen bonds with water molecules, which can make them have strong water holding capacity. At present, there are no relevant reports on...

Claims

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Application Information

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IPC IPC(8): C08B37/00A24B15/40
Inventor 陈芝飞马宇平郝辉芦昶彤孙志涛杨金初王墨染
Owner CHINA TOBACCO HENAN IND
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