Method for quickly removing lipid compounds in tobaccos by utilizing accelerated solvent extraction device and degreasing remaining rate calculation method

A technology for accelerating solvents and extractors, applied in the field of removing lipid compounds in tobacco, can solve the problems of large water and electricity consumption, long time consumption, low degree of automation, etc., and achieve the effects of low reagent consumption, simple and time-saving operation

Inactive Publication Date: 2016-12-07
ZHENGZHOU TOBACCO RES INST OF CNTC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Cellulose, hemicellulose and lignin are important cell wall components in tobacco. Currently, the standard method YC / T 347—2010 "Neutral Washing of Tobacco and Tobacco Products" is commonly used to determine cellulose, hemicellulose and lignin in tobacco Fiber, Acid Detergent Fiber, Acid Lignin Determination Detergent Method", the method: the tobacco sample is reflux extracted with a mixed solution of ethanol, benzene and ether under heating and slight boiling for 4 hours, and after suction filtration and acetone washing, the degreased Tobacco powder samples, calculate the degreasing residual rate, and then use the degreased tobacco powder samples to measure cellulose, hemicellulose and lignin. This method has the disadvantages of long operation time, high water and electricity consumption, and low degree of automation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] Weigh the empty weight of the sample extraction cell ( M 0 is 107.3523g), take the sample in the sample extraction cell, weigh the mass M 1 It is 112.1583g, and the extraction cell is installed in the sample tray of the accelerated solvent extraction instrument; the sample is subjected to accelerated solvent extraction with a mixed solution of ethanol, benzene and ether (the ratio is 3:8:1), extraction conditions: furnace temperature 60°C, system pressure 1800psi, heating time 6min, extraction time 15min, cycle the extraction times 3 times according to this condition, then wash 3 times with acetone solution (3ml each time), nitrogen purging time 60s, remove the extraction pool and put it in an oven at 110℃, Dry to constant weight ( M 2 for 110.8106). The calculated degreasing residual rate is 72.0%, which is consistent with the standard method YC / T 347-2010 measurement result of 72.8%; and the whole extraction process takes about 1.5h, which is more time-saving tha...

example 2

[0021] Weigh the empty weight of the sample extraction cell ( M 0 is 107.4123g), take the sample in the sample extraction cell, weigh the mass M 1 It is 113.1583g, and the extraction cell is installed in the sample tray of the accelerated solvent extraction instrument; the sample is subjected to accelerated solvent extraction with a mixed solution of ethanol, benzene and ether (8:3:1), extraction conditions: furnace temperature 160°C, system pressure 1100psi, heating time 12min, extraction time 5min, cycle the extraction times 3 times according to this condition, then wash 3 times with acetone solution (3ml each time), nitrogen purging time 60s; remove the extraction pool and put it in an oven at 110℃, Dry to constant weight (M 2 is 111.8026). The calculated degreasing residual rate was 76.4%, which was consistent with the standard method YC / T 347-2010 measurement result of 75.4%.

example 3

[0023] Weigh the empty weight of 33ml sample extraction cell ( M 0 is 107.3123g), take the sample in the sample extraction cell, weigh the mass M 1 It is 113.2185g, and the extraction cell is installed in the sample tray of the accelerated solvent extraction instrument; the sample is subjected to accelerated solvent extraction with a mixed solution of ethanol, benzene and ether (the ratio is 5:5:1), extraction conditions: furnace temperature 140°C, system pressure 1800psi, heating time 10min, extraction time 12min, cycle the extraction times 3 times according to this condition, then wash 3 times with acetone solution (3ml each time), nitrogen purging time 60s; remove the extraction pool and put it in an oven at 110℃, Dry to constant weight ( M 2 is 111.5296); the calculated residual degreasing rate is 71.4%, which is consistent with the result of the standard method YC / T 347-2010 with a degreasing residual rate of 70.1%. By measuring the volume of the collected liquid in ...

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Abstract

The invention provides a method for quickly removing lipid compounds in tobaccos by utilizing an accelerated solvent extraction device. The method is characterized in that a mixed solution of alcohol, benzene and diethyl ether is used as an extracting solvent, a tobacco raw material is extracted and degreased with an accelerated solvent extraction device and is washed and dried to obtain a degreased tobacco powder sample. The tobacco powder sample can be used for analyzing and detecting cellulose, hemicellulose and lignin in tobaccos. The method for calculating the degreasing remaining rate is convenient and quick, and has high accuracy. The method for quickly removing lipid compounds in tobaccos by utilizing the accelerated solvent extraction device can be established by sufficiently utilizing the advantages including high automatic degree, small reagent consumption and the like of the accelerated solvent extraction device, is simple and convenient in experiment operation, can be used for improving working efficiency, can meet the requirement for YC / T 347-2010, and achieves the aim of degreasing tobaccos.

Description

technical field [0001] The invention belongs to the technical field of removing lipid compounds in tobacco, in particular to a method for rapidly removing lipid compounds in tobacco by using an accelerated solvent extraction apparatus and a method for calculating the remaining degreasing rate. Background technique [0002] Cellulose, hemicellulose and lignin are important cell wall components in tobacco. Currently, the standard method YC / T 347—2010 "Neutral Washing of Tobacco and Tobacco Products" is commonly used to determine cellulose, hemicellulose and lignin in tobacco Fiber, Acid Detergent Fiber, Acid Lignin Determination Detergent Method", the method: the tobacco sample is reflux extracted with a mixed solution of ethanol, benzene and ether under heating and slight boiling for 4 hours, and after suction filtration and acetone washing, the degreased Tobacco powder samples are calculated to obtain the degreasing residual rate, and then the degreased tobacco powder sample...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04G01N1/34
CPCG01N5/04G01N1/34
Inventor 王洪波赵乐郭吉兆郭军伟赵阁颜权平刘绍锋彭斌张晓兵刘惠民
Owner ZHENGZHOU TOBACCO RES INST OF CNTC
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