JOURNAL OF LIGHT INDUSTRY

CN 41-1437/TS  ISSN 2096-1553

Volume 38 Issue 3
June 2023
Article Contents
ZHANG Jiabao, WANG Yiqun, LIANG Miao, et al. Low temperature pyrolysis characteristics of heated tobacco raw materials and its correlation with sensory quality[J]. Journal of Light Industry, 2023, 38(3): 94-101. doi: 10.12187/2023.03.012
Citation: ZHANG Jiabao, WANG Yiqun, LIANG Miao, et al. Low temperature pyrolysis characteristics of heated tobacco raw materials and its correlation with sensory quality[J]. Journal of Light Industry, 2023, 38(3): 94-101. doi: 10.12187/2023.03.012 shu

Low temperature pyrolysis characteristics of heated tobacco raw materials and its correlation with sensory quality

  • Received Date: 2022-08-24
    Accepted Date: 2022-11-07
  • Thermogravimetric technology was used to analyze the low temperature pyrolysis characteristics of flue-cured tobacco, burley tobacco, oriental tobacco and cigar tobacco. Meanwhile, the sensory quality of tobacco raw materials under heating conditions was evaluated, and the correlation between the pyrolysis characteristics and sensory quality was further analyzed statistically. The results showed that: under the heating condition of linear temperature-constant temperature baking, all tobacco leaves experienced four weight loss stages (dehydration and drying stage, removal stage of volatile components, decomposition stage of cellulose components and constant temperature baking stage), but there were some differences in the pyrolysis characteristic parameters of different weight loss stages. With the increase of glycerin content (0%~15%), the maximum weight loss rate and weight loss rate of all tobacco raw materials in the volatile component removal stage increased, and the maximum weight loss temperature of flue-cured tobacco increased, while that of burley tobacco, oriental tobacco and cigar tobacco decreased. When the glycerin dosage was 15%, it had the greatest effect on the weight loss rate of flue-cured tobacco at this stage, and the least effect on oriental tobacco. The total score of sensory quality of tobacco leaf samples increased with the increase of glycerin dosage. Person correlation analysis showed that the glycerin content of tobacco leaf raw materials was positively correlated with the smoke volume, aroma volume, uniformity score and total sensory quality score. There was a significant positive correlation between the maximum weight loss rate and miscellaneous gas, irritability, energy score and total sensory quality score, while the maximum weight loss rate during the decomposition stage of cellulose components had a negative correlation with aroma volume, miscellaneous gas, irritation, purity, energy score and total sensory quality score.
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