Method and application of preparing sun-cured tobacco by irradiation
Soaking, sun-drying, and irradiating tobacco leaves with a pretreatment solution followed by natural fermentation and aging improve sun-cured tobacco quality, addressing issues of smell and flavor, resulting in enhanced aroma and smoke quality.
US20250359585A1Pending Publication Date: 2025-11-27CHINA TOBACCO YUNNAN IND
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Patent Information
- Application Number
- US19/290466
- Authority / Receiving Office
- US · United States
- Patent Type
- Applications(United States)
- Current Assignee / Owner
- Priority Date
- 2024-05-08
- Filing Date
- 2025-08-05
- Publication Date
- 2025-11-27
AI Technical Summary
Technical Problem
Sun-cured tobacco leaves exhibit strong mixed smells, pungent flavors, monotonous aroma, and insufficient aroma volume, failing to meet industrial quality requirements due to environmental and internal factors affecting chemical reactions during preparation.
Method used
A method involving soaking, sun-drying, spraying a pretreatment solution, natural fermentation, gamma irradiation, and aging to enhance tobacco quality, reducing green odors and enhancing aroma and smoke flavor.
Benefits of technology
The method results in tobacco leaves with natural sweet and mellow aroma, rich fragrance, improved aroma volume, and purer smoke taste, enhancing smoking satisfaction and reducing nitrogen-containing harmful components.
✦ Generated by Eureka AI based on patent content.
Abstract
A method for preparing sun-cured tobacco by irradiation, includes the following steps: (1) soaking dried fresh tobacco leaves in water for a period of time and then sun-drying the soaked tobacco leaves; (2) evenly spraying a pretreatment solution on surfaces of the soaked and dried tobacco leaves, sealing, and letting them ferment naturally for a period of time; (3) sun-drying the fermented tobacco leaves again; (4) irradiating the sun-dried tobacco leaves with a certain dose of gamma (γ) rays; and (5) aging and maturing the irradiated tobacco leaves under certain conditions to obtain the sun-cured tobacco. The sun-cured tobacco obtained by the method can be used to improve the smoke quality of cigarettes.
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