| 叶丝滚筒干燥过程中化学成分的动态变化特征研究 |
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| 引用本文： | 王廷,李斌,朱文魁,于川芳,石中金.叶丝滚筒干燥过程中化学成分的动态变化特征研究[J].烟草科技,2010(11). |
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| 作者姓名： | 王廷 李斌 朱文魁 于川芳 石中金 |
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| 作者单位： | 烟草行业烟草工艺重点实验室郑州烟草研究院;黑龙江烟草工业有限责任公司; |
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| 摘 要： | 利用批处理式滚筒干燥试验装置,以两种烤烟、一种白肋烟为原料,研究了叶丝滚筒干燥过程中含水率、总植物碱、还原糖、总糖、石油醚提取物等含量随干燥处理时间的动态变化特征,同时对比分析了滚筒壁温对上述指标变化特征的影响。结果表明:①叶丝干燥过程含水率的变化规律符合菲克第二定律,实验所用烤烟的传质有效扩散系数(De)均小于白肋烟。滚筒壁温升高,3种叶丝De值均增大,但上部叶De值的变化较中部叶小;②随干燥时间延长,总植物碱和还原糖含量均呈近似线性下降,随滚筒壁温升高,其下降速率增大;③总糖含量除在160℃干燥结束阶段急剧下降外,整体变化规律不明显;④石油醚提取物含量在不同条件下均有相似的变化规律,其含量随干燥过程的进行呈先升高后降低的趋势,峰值区间均在含水率为8%~2.5%时。
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| 关 键 词： | 滚筒干燥 含水率 化学成分 动态变化 滚筒壁温 |
Dynamic Changes of Chemical Components in Cut Tobacco During Drying |
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| WANG TING,LI BIN,ZHU WEN-KUI,YU CHUAN-FANG,SHI ZHONG-JIN.Dynamic Changes of Chemical Components in Cut Tobacco During Drying[J].Tobacco Science & Technology,2010(11). |
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| Authors: | WANG TING LI BIN ZHU WEN-KUI YU CHUAN-FANG SHI ZHONG-JIN |
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| Affiliation: | WANG TING(1,2),LI BIN(1),ZHU WEN-KUI(1),YU CHUAN-FANG(1),and SHI ZHONG-JIN(2)1.Key Laboratory of Tobacco Processing Technology,CNTC,Zhengzhou 450001,China2.Helongjiang Tobacco Industrial Co.,Ltd.,Harbin 150001,China |
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| Abstract: | The dynamic changes of moisture content,total alkaloid,reducing sugar,total sugar,petroleum ether extract in cut tobacco during drying were investigated with a laboratory cylinder drier,and the effects of cylinder wall temperature(Tw) were also studied.The results showed that: 1) the change of moisture content in cut tobacco during drying was in accordance with Fick's second law;the values of De(effective diffusion coefficient) of flue-cured tobacco were less than that of burley tobacco;De of all tobacco in... |
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| Keywords: | Cylinder drying Moisture content Chemical component Dynamic change Temperature of cylinder wall |
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