Abstract

To explore the influence of wind speed on the quality of tobacco in this study, we employed a heat pump-powered intensive curing barn and a three-stage curing process. By evaluating the influence of fan parameters on the quality of tobacco leaves at different curing stages, the optimal wind speed was determined. After adopting the optimized wind speed process, the degradation of macromolecular substances was faster, the accumulation of aroma substances was delayed to 55 °C, and the accumulation was more complete. Among them, the contents of reducing sugar and total sugar in flue-cured tobacco leaves were 22.25% and 29.2%, respectively, which were lower than those in the control group. The sugar was converted into more aroma substances, and the total amount of neutral aroma substances was 48.82% higher than that of the control group. The content of related aroma substances increased significantly. The content of petroleum ether extract related to aroma substances increased by 0.93% compared with the control group. The macromolecular substances were degraded more fully than the control group, such as the starch content decreased to 1.56%. The results of metabolomics showed that the contents of aldehydes, heterocyclic compounds, alcohols, ketones and esters increased significantly in different degrees after this process. These results show that the optimization of wind speed parameters can significantly improve the baking quality of tobacco leaves. This study provides a reference for the optimization of the flue-cured tobacco baking process.

Details

Title
Based on metabolomics, the optimum wind speed process parameters of flue-cured tobacco in heat pump bulk curing barn were explored
Author
Sun, Cheng Lin 1 ; Zhang, Hui Lin 2 ; Zhou, Dong Bo 3 ; Cheng, Zhi Jun 2 ; Xie, You 4 ; Rang, Zhong Wen 1 ; Dai, Lin Jian 1 

 Hunan Agricultural University, College of Agriculture, Changsha, China (GRID:grid.257160.7) (ISNI:0000 0004 1761 0331) 
 China Tobacco Hunan Industrial Co., Ltd., Raw Material Procurement Center, Changsha, China (GRID:grid.452261.6) (ISNI:0000 0004 0386 2036) 
 China Tobacco Hunan Industrial Co., Ltd, Technical Centre, Changsha, China (GRID:grid.452261.6) (ISNI:0000 0004 0386 2036) 
 Tongren City Company Jiangkou Branch, China Tobacco Corporation Guizhou Province Company, Tongren, China (GRID:grid.452261.6) 
Pages
21558
Publication year
2023
Publication date
2023
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2898794126
Copyright
© The Author(s) 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.