The Effects of Increasing the Dry-Bulb Temperature during the Stem-Drying Stage on the Quality of Upper Leaves of Flue-Cured Tobacco

The control of the curing temperature during stem-drying stage is important for quality upper leaves flue-cured tobacco. Based on conventional process yellowing and leaf0drying in tobacco process, this study, dry-bulb was increased to 72 75 °C bulk barn compare with highest 68 commonly adopted barn. result showed that, compared setting, energy consumption cost reduced by 0.10 or 0.08 USD/kg when °C, respectively. Statistical analysis that increasing DBT beneficial improvement internal leaves. adjustment also improved aromatic volume singe-material However, as continued increase, cured a decreasing trend. According fresh leaves, an appropriate increase based setting can improve usability economic benefit. degree should depend local growth field.