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A method for comprehensively extracting multiple effective components from tobacco leaves

An active ingredient, comprehensive extraction technology, applied in chemical instruments and methods, separation/purification of hydroxyl compounds, organic chemistry, etc., can solve problems such as waste of resources, achieve less waste discharge, more separation products, and high extraction efficiency. Effect

Inactive Publication Date: 2016-01-06
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the reports on the simultaneous extraction of multiple components in tobacco are mostly aimed at the two substances of solanesol and nicotine, while other active components in tobacco, such as proteins, polyphenols and sugars, have not been fully utilized, resulting in a waste of resources

Method used

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  • A method for comprehensively extracting multiple effective components from tobacco leaves

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Embodiment 1

[0049] A method for comprehensively extracting multiple active ingredients from tobacco leaves, comprising the following steps:

[0050] (1) Ultrasonic circulation extraction of solanesol, nicotine and chlorogenic acid in tobacco leaves with ethanol solution: After drying and crushing Yunnan tobacco leaves to 20 mesh, weigh 100g of tobacco leaf fragments, place them in an ultrasonic circulation extractor, and then add 500mL of ethanol The volume fraction is 80% acidic ethanol aqueous solution, the pH value of the solution is 3, adjusted by phosphoric acid. Under the condition of temperature of 50° C. and ultrasonic power of 100 W, the ultrasonic circulation was extracted for 30 minutes, and the acidic ethanol extract and tobacco leaf filter residue were obtained by filtration. Concentrate the ethanol extract to obtain 18.2 g of crude paste containing solanesol, nicotine and chlorogenic acid, wherein the extraction rate of solanesol is 48.2%, the extraction rate of nicotine is ...

Embodiment 2

[0058] A method for comprehensively extracting multiple active ingredients from tobacco leaves, comprising the following steps:

[0059] (1) Ultrasonic circulation extraction of solanesol, nicotine and chlorogenic acid in tobacco leaves with ethanol solution: After drying and crushing Yunnan tobacco leaves to 20 mesh, weigh 100g of tobacco leaf fragments, place them in an ultrasonic circulation extractor, and then add 1000mL of ethanol The volume fraction is 90% acidic ethanol aqueous solution, the pH value of the solution is 4, adjusted by phosphoric acid. Under the condition of temperature of 55°C and ultrasonic power of 200W, the ultrasonic circulation was extracted for 45 minutes, and the acidic ethanol extract and tobacco leaf filter residue were obtained by filtration. Concentrate the ethanol extract to obtain 20.3 g of crude paste containing solanesol, nicotine and chlorogenic acid, wherein the extraction rate of solanesol is 68.2%, the extraction rate of nicotine is 72...

Embodiment 3

[0067] A method for comprehensively extracting multiple active ingredients from tobacco leaves, comprising the following steps:

[0068] (1) Ultrasonic circulation extraction of solanesol, nicotine and chlorogenic acid in tobacco leaves with ethanol solution: after drying and crushing Yunnan tobacco leaves to 20 mesh, weigh 100g of tobacco leaf fragments, place them in an ultrasonic circulation extractor, and then add 2000mL of ethanol The volume fraction is 95% acidic ethanol aqueous solution, the pH value of the solution is 4, adjusted by phosphoric acid. Under the condition of temperature of 60° C. and ultrasonic power of 300 W, the ultrasonic circulation was extracted for 60 minutes, and the acidic ethanol extract and tobacco leaf filter residue were obtained by filtration. Concentrate the ethanol extract to obtain 21.6 g of crude paste containing solanesol, nicotine and chlorogenic acid, wherein the extraction rate of solanesol is 81.2%, the extraction rate of nicotine is...

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Abstract

The invention discloses a method for comprehensively extracting multiple effective components from tobacco leaves. The method comprises the following steps: performing twice ultrasonic circulation extraction on the tobacco leaves to respectively obtain crude ointment containing solanesol, nicotine and chlorogenic acid and an extract containing protein and sugar, and with the combination of separation and purification methods such as liquid-liquid two-phase extraction, column chromatography, recrystallization, steam distillation and precipitation, separating five effective components, namely, solanesol, nicotine, chlorogenic acid, protein and sugar from the tobacco leaves one by one. The method can continuously extract and separate the multiple effective components form the tobacco leaves, can greatly improve the utilization rate of a tobacco leaf raw material, has the advantages that the extraction efficiency is high, a great number of separation products are obtained and a small amount of wastes are discharged, and is an efficient and environment-friendly comprehensive tobacco leaf multi-component extraction technique.

Description

technical field [0001] The invention belongs to the technical field of tobacco leaf deep processing, in particular to a method for gradually extracting and separating effective components solanesol, nicotine, chlorogenic acid, protein and sugar from tobacco leaves. Background technique [0002] Tobacco leaves contain a variety of active ingredients with medicinal or edible value, such as solanesol, nicotine, chlorogenic acid, protein and sugars. Solanesol is a high value-added medicinal ingredient, which has pharmacological effects such as antibacterial, anti-inflammatory and hemostatic, and is also a necessary raw material for the synthesis of vitamin K2 and coenzyme Q10. Nicotine is a kind of alkaloid in tobacco leaves, which is widely used, and its uses mainly include two aspects of pesticide and medicine. Nicotine series pesticides belong to plant insecticides, which have the characteristics of steam fumigation, stomach poisoning, contact killing and rapid degradation w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C33/02C07D401/04C07C69/732C07C29/76C07C67/48C07H1/08C07K1/30
CPCC07C29/76C07C67/48C07D401/04C07H1/08C07K1/30C07C33/02C07C69/732
Inventor 刘治田张旗郑乐驰
Owner WUHAN INSTITUTE OF TECHNOLOGY