Method for reducing crotonaldehyde in mainstream smoke of cigarettes

A technology of cigarette mainstream smoke and crotonaldehyde, applied in tobacco, tobacco processing, application, etc., can solve the problems of expensive microwave equipment, difficulty in popularization and application, high processing cost, etc., and achieve improved smoking safety, great economic significance, adaptability strong effect

Inactive Publication Date: 2013-07-10
河南省科学院同位素研究所有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention uses microwave means to reduce the content of crotonaldehyde in cigarette mainstream smoke by changing the process of making shredded cigarettes. Although it has a certain effect on reducing the content of crotonaldehyde in smoke, microwave equipment is expensive and the processing cost is high. The combination of some tobacco processing techniques is difficult to popularize and apply in industrial production
Therefore, none of these treatments has ideal selectivity, and it is necessary to develop a method for reducing crotonaldehyde in cigarette smoke

Method used

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  • Method for reducing crotonaldehyde in mainstream smoke of cigarettes
  • Method for reducing crotonaldehyde in mainstream smoke of cigarettes
  • Method for reducing crotonaldehyde in mainstream smoke of cigarettes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Take 150kg of freshly-cured tobacco leaves randomly, and pack them into a box of 50kg, 3 boxes in total, sealed and packed in a corrugated box of length×width×height of 70cm×60cm×50cm. The thickness of the tobacco leaves in the carton is 26~72cm, and the bulk density 0.20~0.34g / cm 3 ; Place the packaged tobacco leaves on a conveyor with a conveying speed of 0.02~0.3m / s; the tobacco leaves placed on the conveyor are irradiated by electron beams / X-rays generated by an electron accelerator, and the energy of the electron accelerator is 5~10MeV , The beam current is 0.3-20mA, the beam power is 10-20kW, the maximum scanning width is 100cm, the scanning frequency is 5-15Hz, and the radiation dose is 1kGy. The method of secondary irradiation is adopted, and the tobacco leaves are conveyed through the conveying device twice. The scanning window of the electron accelerator is irradiated, and half of the irradiation dose is received at a time. After the first irradiation, the smoke...

Embodiment 2

[0030] Following the similar steps as in Example 1, randomly take 3 boxes of redryed tobacco leaves packed in standard boxes. The carton length×width×height is 113.6cm×72cm×72.5cm, and each box weighs 200kg. 5kGy dose of X-ray is used for irradiation treatment, the irradiated tobacco leaves are rolled by a cigarette machine, and 40 cigarettes that meet the measurement requirements are randomly selected. According to the standard conditions specified in GB / T 19609-2004, the smoking machine is used to simulate human smoking status , Using DNPH-treated Cambridge filter to collect crotonaldehyde in the smoke, using high performance liquid chromatography-diode array detection method to determine the content of crotonaldehyde, with the corresponding unirradiated cigarette sample as a control, and smoking evaluation. The results are shown in Table 2.

[0031] Table 2 The content and changes of crotonaldehyde in re-cured tobacco before and after irradiation

[0032]

Embodiment 3

[0034] Following the steps similar to the above-mentioned Example 1, 3 boxes of finished cigarettes were randomly taken, the carton length×width×height was 47.5cm×26cm×59.5cm, each box weighed 15kg, and the number was 50. 10kGy dose of electron beam is used for irradiation treatment. After irradiation, 40 cigarettes that meet the measurement requirements are randomly taken. According to the standard conditions specified in GB / T19609-2004, the smoking machine is used to simulate the smoking state of people, and the DNPH processed Cambridge filter is used The crotonaldehyde in the smoke was collected, and the content of crotonaldehyde was determined by high performance liquid chromatography-diode array detection method. The corresponding unirradiated cigarette sample was used as a control, and smoking evaluation was performed. The results are shown in Table 3.

[0035] Table 3 The content and change of crotonaldehyde in finished cigarettes before and after irradiation

[0036]

[00...

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Abstract

The invention discloses a method for reducing crotonaldehyde in mainstream smoke of cigarettes, which includes: packing tobacco / finished cigarettes with paper cartons with a stacking thickness of 26-72cm and a stacking density of 0.20-0.34g / cm<3>; placing the cigarette cartons on a conveying device at the conveying speed of 0.02-0.3m / s, and subjecting the cartons to electronic beam / X-ray irradiation generated by an electronic accelerator, wherein the electronic accelerator is 5-10MeV in energy, 0.3-20mA in beam current, 10-20kW in beam power, 100cm in largest scanning width, 5-15Hz in scanning frequency, 1-10kGy in irradiation dose and 5-35 DEG C in set operating temperature; allowing the cartons to pass a scanning widow of the electronic accelerator twice for irradiation, wherein the distance from the center of each carton to the scanning window of the electronic accelerator is 40-60cm in irradiation; and limiting the ambient humidity to be no larger than 60% in operation.

Description

Technical field [0001] The invention belongs to the application field of irradiation technology, and also belongs to the technical field of tobacco tar reduction and harm reduction, and relates to the application of electron accelerator irradiation technology in reducing tobacco harm, in particular to an electron accelerator capable of reducing the content of crotonaldehyde in mainstream cigarette smoke Irradiation processing technology. Background technique [0002] Tobacco is one of the important economic crops in our country, and it occupies an important position in the national economy. At present, there are 1.1 billion smokers in the world and more than 300 million in China. Smoking has become a social group behavior. As early as the 1930s, some people suggested that smoking is harmful to health. In 1950, the Royal Medical Association and the U.S. General Administration of Medicine in 1964 officially published reports on the relationship between smoking and health, which cl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24B15/22
Inventor 陈云堂郭东权刘江豫袁红星范家霖吕晓华杜阅光王娟娟张建伟杨保安李湘张志坚徐世臻田占军蔡恒
Owner 河南省科学院同位素研究所有限责任公司
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