Baking process method for reducing release amount of benzopyrene in flue-cured tobacco

A curing process and benzopyrene technology, which are applied in the directions of tobacco, tobacco preparation, application, etc., can solve the problem that the release amount is not paid attention to, and achieve the effects of improving the economic value of tobacco leaves, reducing the release amount, and improving the sensory quality of tobacco leaves.

Inactive Publication Date: 2014-05-28
CHONGQING CHINA TOBACCO IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, the production level of tobacco leaves has been greatly improved, and the intensive curing barns with automatic control are gradually replacing the old ordinary barns. The quality of tobacco leaf curing has been improved, but the setting of the curing conditions is all about the appearance characteristics, aroma and taste, energy saving, efficiency improvement, etc., but no attention has been paid to the release of harmful substances such as benzopyrene, and there are few related patents and literature reports

Method used

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  • Baking process method for reducing release amount of benzopyrene in flue-cured tobacco
  • Baking process method for reducing release amount of benzopyrene in flue-cured tobacco
  • Baking process method for reducing release amount of benzopyrene in flue-cured tobacco

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Test tobacco leaves: the upper leaves, the 14th to 16th leaves.

[0029] The tobacco leaves obtained by roasting according to the process conditions in Table 1 were used as control samples, and the tobacco leaves obtained by roasting according to the process conditions in Table 2 were used as test samples.

[0030] Table 1 Existing baking process parameter list

[0031]

[0032] Note: the upper, middle and lower tobacco leaves in the existing curing process all use the process parameters in Table 1.

[0033] Table 2 Test baking parameters

[0034]

[0035]

[0036] See Table 3 for the detection results of the benzopyrene emission from the tobacco leaves of the control sample and the tobacco leaves of the test sample.

[0037] The detection result of the release amount of benzopyrene in the samples after table 3 roasting

[0038]

[0039] As can be seen from Table 3, the technology provided by the present invention has an obvious reduction effect on the re...

Embodiment 2

[0053] Test tobacco leaves: the upper leaves, the 14th to 16th leaves.

[0054] The test was carried out according to the method of Example 1. The existing baking process parameters are shown in Table 1, and the setting of the test baking process parameters is shown in Table 7.

[0055] Table 7 test baking parameters

[0056]

[0057]

[0058] See Table 8 for the test results of the release of benzopyrene from the tobacco leaves of the test samples.

[0059] The detection result of the sample benzopyrene release amount after table 8 bakes

[0060]

[0061] As can be seen from Table 8, the process provided by the present invention has an obvious reduction effect on the release of benzopyrene. Compared with the existing baking process, the release of benzopyrene is reduced from 11.1ng / g to 8.6ng / g, and the drop reaches 22.5 ng / g. %.

[0062] The appearance quality of the cured tobacco leaves was evaluated, and the cured whole kang tobacco leaf samples were graded accor...

Embodiment 3

[0075] Test tobacco leaves: the middle leaves, the 9th to 11th leaves.

[0076] The test was carried out according to the method of Example 1. The existing baking process parameters are shown in Table 1, and the setting of the test baking process parameters is shown in Table 12.

[0077] Table 12 test baking parameters

[0078]

[0079]

[0080] After the tobacco leaves are cured according to the parameters in Table 12, measure the benzopyrene emission of the test tobacco leaves and the reference tobacco leaves, carry out the grade structure classification of the tobacco leaves, the sensory quality evaluation and smoking and the tobacco leaf purchase pricing, the results are consistent with the trends of Examples 1 and 2 Same, all show, each index of test tobacco leaf is all better than comparison tobacco leaf.

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Abstract

The invention discloses a baking process method for reducing the release amount of benzopyrene in flue-cured tobacco. A tobacco curing process is partitioned into six stages, the dry-bulb temperature is set to gradually raise between 35 DEG C and 68 DEG C, the wet-bulb temperature is 33-42 DEG C, the temperature raising rate is 0.2-0.8 DEG C / h, the relative humidity is 22-87 percent and falls in sequence, the baking time is 13-57 hours, and the first four stages are shorter in baking time while the last two stages are longer in baking time. The six stages are carried out continuously. After baking, the release amount of the benzopyrene in tobacco leaves is lowered by over 20 percent than that of benzopyrene in a blank control, the grade structure of the tobacco leaves is improved, the sensory quality of the tobacco leaves is improved, and the quality and amount of aroma are improved greatly. Moreover, irritation and offensive odor are reduced, the price of the baked tobacco leaves is higher, and the economic value of the tobacco leaves is raised.

Description

technical field [0001] The invention belongs to the technical field of tobacco leaf preparation, and relates to a method for curing flue-cured tobacco, in particular to a preparation process for reducing the release of benzopyrene in flue-cured tobacco by adjusting process parameters in the tobacco leaf curing process. Background technique [0002] Benzo[a]pyrene is a typical fused-ring aromatic hydrocarbon in smoke. Polycyclic aromatic hydrocarbons are the products of incomplete combustion of tobacco under high temperature and anoxic conditions. The organic fragments generated by the pyrolysis of various organic substances are formed through a complex polymerization process. There are more than 100 types of fused-ring aromatic hydrocarbons in cigarette smoke, and about 30 carcinogenic fused-ring aromatic hydrocarbons have been identified in cigarette smoke, the most typical of which is benzo[a]pyrene, which is the most carcinogenic , followed by condensed aromatic hydroca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B3/04A24B3/10
Inventor 寇明钰代先强冯广林戴亚汪长国刘朝科谭晓华岑小红吴小平杨胜华胡丽涛赵龙杰彭培耿宗泽
Owner CHONGQING CHINA TOBACCO IND CO LTD
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