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| Effects of Steam Pretreatment on the Extraction Efficiency of Tobacco Stems and the Smoke Components of Reconstituted Tobacco Sheets |
| Received:August 19, 2025 Revised:September 05, 2025 |
| DOI：10.11980/j.issn.0254-508X.2025.11.019 |
| Key Words:tobacco stems steam treatment extraction efficiency water-soluble sugar smoke component |
| Fund Project:河南中烟技术研究开发项目（AW2023031）。 |
| Author Name | Affiliation | Postcode | | WANG Runan* | He’nan Cigarette Industry Tobacco Sheet Co., Ltd., Xuchang, He’nan Province, 461100
Tianjin Key Lab of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | WANG Fan | Tianjin Key Lab of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | LUO Chong | He’nan Cigarette Industry Tobacco Sheet Co., Ltd., Xuchang, He’nan Province, 461100
Tianjin Key Lab of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | HUANG Hanping | He’nan Cigarette Industry Tobacco Sheet Co., Ltd., Xuchang, He’nan Province, 461100 | 461100 | | SUN Zhitao* | He’nan Cigarette Industry Tobacco Sheet Co., Ltd., Xuchang, He’nan Province, 461100 | 461100 | | DUAN Ke | Technology Center of China Tobacco He’nan Industry Co., Ltd., Zhengzhou, He’nan Province, 450000 | 450000 | | LI Jiahao | Tianjin Key Lab of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | WEN Yangbing* | Tianjin Key Lab of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 |
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| Abstract:In this study， high-temperature steam was used to pretreat tobacco stems， and the effects of steam pretreatment time on the extraction efficiency of tobacco stems， water-soluble sugar content in the extract， microstructure， and smoke release characteristics of the produced reconstituted tobacco sheets were systematically investigated. The results showed that the steam pretreatment time significantly influenced the extraction rate of tobacco stems and the sugar content in the extract. Compared to untreated tobacco stems (with an extraction rate of 34.1%)， the extraction rate increased by 21% after 8 min of steam pretreatment (with an extraction rate of 41.3%). Meanwhile， the increases in the content of water-soluble total sugars and reducing sugars in the extract both exceeded 69%. Microstructural analysis revealed that steam pretreatment caused the tissue structure of tobacco stems to expand and the pore sizes to increase. Smoke component analysis demonstrated that steam pretreatment effectively reduced the content of harmful components such as nicotine， formaldehyde， methanol， furfural， and chloromethane in the smoke of reconstituted tobacco sheets， and significantly increased the content of aromatic components such as acids， aldehydes， and phenols. |
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