濃縮工藝對再造煙葉原料醇提液蒸發效果的影響

俞京 莊海濤 袁廣翔 朱亞峰 劉玉坤 竇昆鵬 陸苗苗 李曉平 王棟 張合川 眭凱

摘要 為了考察濃縮工藝參數與再造煙葉原料醇提液蒸發效果的關系，使用旋轉蒸發儀開展試驗室真空濃縮試驗，研究了不同濃縮工藝條件對乙醇溶液蒸發效率、乙醇損失量及樣品感官質量的影響。結果表明：水浴溫度對溶液總蒸發速率的影響最大，之后依次為真空度、蒸發瓶轉速、濃縮時間、乙醇濃度。隨著水浴溫度的增加以及真空度的降低，乙醇和清水蒸發速率均逐漸上升;隨著蒸發瓶轉速的增加，乙醇和清水蒸發速率均先下降后上升;隨著濃縮時間的增加，乙醇蒸發速率逐漸下降，清水蒸發速率逐漸上升。濃縮時間對乙醇損耗量的影響最大，之后依次為真空度、乙醇濃度、水浴溫度、蒸發瓶轉速。其中，隨著濃縮時間的增加、真空度的降低，乙醇和清水損耗量均逐漸上升;隨著乙醇濃度的提高，乙醇損耗量逐漸上升，清水損耗量逐漸下降。隨著提取時乙醇溶液濃度的增加，樣品感官質量明顯提升;隨著濃縮過程中水浴溫度的提高，再造煙葉樣品雜氣和刺激均稍有改善，但當水浴溫度提高到70 ℃后，樣品香氣有所下降;隨著真空度的升高，再造煙葉樣品的香氣有所下降。適宜的醇提濃縮工藝條件為乙醇濃度75%，水浴溫度60 ℃，真空度5 kPa。

關鍵詞 再造煙葉;醇提液;濃縮;蒸發效果;感官質量

中圖分類號 TS 45? 文獻標識碼 A? 文章編號 0517-6611（2021）19-0164-06

doi：10.3969/j.issn.0517-6611.2021.19.043

開放科學（資源服務）標識碼（OSID）：

Influences of Concentration Process on the Evaporation Effect of Alcohol Extraction from Reconstituted Tobacco Materials

YU Jing， ZHUANG Hai-tao， YUAN Guang-xiang et al

（Jiangsu Xinyuan Tobacco Sheet Co.， Ltd.， Huaian， Jiangsu 223002）

Abstract In order to investigate the relationship between concentration process parameters and the evaporation effect of alcohol extraction from reconstituted tobacco materials， vacuum concentration experiment was made by rotary evaporator to study the effects of different concentration process parameters on the evaporation efficiency of alcohol solution， ethanol loss and sensory quality of products. The results showed that water bath temperature had the most impact on the total evaporation rate of solution， followed by vacuum degree， rotating speed of evaporating flask， concentration time and ethanol concentration. The evaporation rate of ethanol and water increased gradually along with the increasing of water bath temperature and the decreasing of vacuum degree. The evaporation rate of ethanol and water presented a down and up trend along with the increasing of rotating speed of evaporating flask. Evaporation rate of ethanol dropped while the evaporation rate of water increased along with the increasing of concentration time. Concentration time had the most impact on the ethanol loss， followed by vacuum degree， ethanol concentration， water bath temperature and rotating speed of evaporating flask. Ethanol and water loss increased gradually along with the increasing of concentration time and the decreasing of vacuum degree. Ethanol loss increased while water loss decreased along with the increased of ethanol concentration. Sensory quality of cigarette products made by the alcohol extraction improved significantly along with the increasing of ethanol concentration. Miscellaneous scent and irritancy of cigarettes reduced， however aroma decreased when water bath temperature raised to 70 ℃. Aroma of cigarettes reduced with the increase of vacuum degree. The suitable technology conditions for concentration progress were as follow： ethanol concentration 75%， water bath temperature 60 ℃， vacuum degree 5 kPa.