Desmodium styracifolium extract and preparation method and application thereof

A technology of Desmodium sativa and extract, which is applied in the field of extracts and preparations of Desmodium sativa, can solve problems such as no cigarette application reports, and achieve the effects of easy separation and purification, no environmental pollution, and quality improvement

Inactive Publication Date: 2013-05-08
CHINA TOBACCO JIANGXI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, domestic and foreign studies on Desmodium spp. mainly focus on the research on chemical components, especially flavonoids, and the flavonoids obtained from it are mainly flavonoid carbon glycoside compounds, such as schaftosides, isovitexins, and isovitexins. Orientin, 6-C-xylose-8-C-xylose apigenin; at the same time, the application of Desmodium sativa is mainly concentrated in the field of medicine, and there is no report on its application in cigarettes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Weigh a certain amount of Desmodium glabra powder passing through a 40-mesh sieve, add 75% ethanol solution according to the ratio of 1:15, mix and place in a high-pressure container, keep the pressure and extract for 20min, the extraction pressure is 300Mpa, filter after pressure relief Remove the filter residue, adjust the pH of the filtrate to 7.5 to 8.0 with 20% sodium hydroxide solution, refrigerate at 0°C to 4°C for 10 hours, and centrifuge at a centrifugal rate of 3000rpm for 20 minutes to obtain a supernatant. When concentrated under reduced pressure to 25°C, the relative contrast is 1.2, which is Desmodium sativa extract I. After diluting it 10 times with propylene glycol, add it to shredded tobacco according to 0.2% of the weight of shredded tobacco, and then make finished tobacco according to the existing technology.

Embodiment 2

[0023] Weigh a certain amount of Desmodium glabra powder passing through a 40-mesh sieve, add 95% ethanol solution according to the ratio of 1:16, mix and place in a high-pressure container, keep the pressure and extract for 25min, the extraction pressure is 500Mpa, filter after pressure relief Remove the filter residue, adjust the pH of the filtrate to 7.5 to 8.0 with 20% sodium hydroxide solution, put it in the refrigerator at 0°C to 4°C for 8 hours, and centrifuge at a centrifugal speed of 5000rpm for 15 minutes to obtain the supernatant. When concentrated under reduced pressure to 25°C, the relative contrast is 1.2, which is Desmodium glabra extract II. After diluting 10 times with sorbitol, it is added to shredded tobacco according to 0.1% of the weight of shredded tobacco, and then made into finished tobacco according to the existing technology.

Embodiment 3

[0025] Weigh a certain amount of Desmodium glabra powder through a 40-mesh sieve, add 80% ethanol solution according to the ratio of 1:12, mix and place in a high-pressure container, keep the pressure and extract for 30min, the extraction pressure is 600Mpa, filter after pressure relief Remove the filter residue, adjust the pH of the filtrate to 7.5-8.0 with 20% sodium hydroxide solution, place it in the refrigerator at 0°C-4°C for 16 hours, and then centrifuge at 8000rpm for 10 minutes to obtain the supernatant. When concentrated under reduced pressure to 25°C, the relative contrast is 1.2, which is Desmodium sativa extract III. After diluting it 10 times with propylene glycol, it is added to shredded tobacco at 0.5% of the weight of shredded tobacco, and then made into finished tobacco according to the existing technology.

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PUM

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Abstract

A desmodium styracifolium extract and a preparation method and an application thereof relate to a plant extract and a preparation method and an application thereof. The preparation method comprises the following steps: crushing dry desmodium styracifolium, sieving by a 40-mesh sieve, adding the desmodium styracifolium powder into a high-concentration ethanol solvent, mixing, putting into a high pressure container, performing ultrahigh pressure extraction, releasing the pressure, filtering to remove residues, collecting the filtrate, adjusting the pH of the filtrate, performing low temperature refrigeration, performing centrifugation to obtain the supernatant, performing reduced pressure concentration to obtain the desmodium styracifolium extract. Before cigarette preparation by the desmodium styracifolium extract, a diluent of the desmodium styracifolium extract is sprayed on to flue-cured tobacco leaf surfaces according to a mass ratio of 0.1%-1%. The beneficial effects of the invention are that: ultrahigh pressure extraction is performed, so effective components dissolve rapidly and completely; the extraction yield is high; and the energy consumption of the whole process is low; the operation is simple; the method causes no environmental pollution, and is easy to produce. The cigarette fragrance becomes fine and clear; the irritation is reduced; and the inherent quality of the cigarette is improved greatly.

Description

technical field [0001] The invention relates to a plant extract and its preparation method and application, in particular to an extract of Desmodium sativa and its preparation method and application. Background technique [0002] Desmodium styracifolium (Osh.) Merr. is a plant of the genus Fabaceae and is a traditional Chinese medicine commonly used in my country. It has the effects of clearing heat, diuresis, and stone removal, and is used to treat urinary system infection, urinary system stones, cholelithiasis, acute icteric hepatitis, etc. [0003] Desmodium radix mainly contains flavonoids, alkaloids, phenols, tannins, polysaccharides, saponins, organic acids and other ingredients. In addition, it also contains volatile components, such as n-hexadecanoic acid, 9,12-octadecenoic acid, stearic acid, β-stigmasterol, lupenone, lupeol, of which, 4,8,12,16- Tetramethylheptadecan-4-lactone, β-stigmasterol, lupenone, lupeol, etc. are the characteristic substances in the volati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02A24B3/12
Inventor 陶冶邓宇田耀伟周平索卫国
Owner CHINA TOBACCO JIANGXI IND CO LTD
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