Method for predicting release amount of phenol in mainstream smoke of flue-cured tobaccos

A prediction method, mainstream smoke technology, applied in the field of tobacco

Active Publication Date: 2013-01-02
YUNNAN RES INST OF TOBACCO SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, according to a large number of literature and related materials, there

Method used

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  • Method for predicting release amount of phenol in mainstream smoke of flue-cured tobaccos
  • Method for predicting release amount of phenol in mainstream smoke of flue-cured tobaccos
  • Method for predicting release amount of phenol in mainstream smoke of flue-cured tobaccos

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Experimental program
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Embodiment

[0077] (1) Pretreatment of samples to be tested

[0078] Pre-processing the flue-cured tobacco leaves to be tested through the three steps of manual tearing, removing stems and shredding. The processed tobacco slices (silk) are immediately sealed, labeled, and stored uniformly without confusion. The equipment is carefully cleaned before and after the moisture regain and shredding of different tobacco samples to ensure that the tobacco samples are well clustered.

[0079] (2) Select a sample of flue-cured tobacco leaves to be tested to determine 8 chemical components: linoleic acid, total sugars, total nitrogen, chlorogenic acid, malonic acid, total polyphenols, tobacco nicotine, volatile acid, assisted by microwave Derivatization-determination of non-volatile organic acids (linoleic acid, malonic acid) by gas chromatography; determination of water-soluble sugars (total sugars) by YC / T159-2002 continuous flow method; determination by YC / T161-2002 continuous flow method Total nitro...

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Abstract

The invention relates to a method for predicting the release amount of phenol in mainstream smoke of flue-cured tobaccos. The method comprises the following steps of: performing sample pretreatment on the flue-cured tobaccos to be tested through manual tearing, stem removal, shredding; detecting eight chemical components comprising linoleic acid, total sugar, total nitrogen, chlorogenic acid, malonic acid, total polyphenol, tobacco nicotine and volatile acid of a sample to be tested; calculating network values of thirteen nodes of a hidden layer by combining the measurement results of the eight chemical components with the coefficients of each input layer of a model; converting the network values of the thirteen nodes of the hidden layer into the output values of the thirteen nodes of the hidden layer; and calculating to obtain a predicted value of the release amount of the tobacco phenol by combining the output values of the thirteen nodes of the hidden layer with the coefficients of the output layers of the model. According to the method, the content of phenol in the smoke can be predicted through the model, cigarette rolling and smoking machine equipment suction are not required to capture the particle phase substances; and moreover, the accumulated content of possible phenol in the finished cigarette products to be formed in the future can be effectively predicted through the flue-cured tobacco raw materials, so that raw material selection in the production process is guided.

Description

Technical field [0001] The invention relates to a method for predicting the release amount of phenol in the mainstream smoke of flue-cured tobacco leaves, and belongs to the technical field of tobacco. Background technique [0002] Phenol is an important harmful substance in mainstream cigarette smoke, and is listed as one of the seven harmful components of cigarette smoke for evaluating the safety of cigarettes. At present, my country has established an industry standard for the determination of phenol in mainstream cigarette smoke. However, the determination of the content of phenol in the flue gas usually requires cumbersome steps such as rolling of the sample, suction and trapping by a smoking machine, and pre-processing of the trapped material. Relatively speaking, the determination steps of some major chemical components in tobacco are relatively simple. The phenol in the smoke is mainly generated by the pyrolysis of polyphenol macromolecular compounds in the tobacco leav...

Claims

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Application Information

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IPC IPC(8): G01N33/00
Inventor 张涛崔柱文刘巍王岚胡守毅马燕孙桂芬曹红云杨帅
Owner YUNNAN RES INST OF TOBACCO SCI
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