| 单宁酸沉淀法提取废烟叶中的烟碱 |
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| 引用本文： | 陈小东,欧阳玉祝,陈志章.单宁酸沉淀法提取废烟叶中的烟碱[J].中国野生植物资源,2010,29(5):58-59,63. |
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| 作者姓名： | 陈小东 欧阳玉祝 陈志章 |
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| 作者单位： | 1. 吉首大学图书馆,湖南,吉首,416000
2. 吉首大学化学化工学院,湖南,吉首,416000 |
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| 基金项目： | 湖南省科技厅资助课题 |
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| 摘 要： | 以单宁酸为沉淀剂,用超声辅助提取法提取废次烟叶中的烟碱。考查了提取介质、固液比、提取时间和提取温度及沉淀剂用量等对烟碱提取率的影响。实验结果表明：用水做提取介质,在固液比为1∶15（g/mL）,70℃温度下超声提取30 min,用4.5g单宁酸进行沉淀,烟碱的提取率为1.06%。
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| 关 键 词： | 废烟叶 烟碱 单宁酸 超声波 |
Nicotine Extracting from Waste Tobacco Plants by Tannic Acid Precipitation |
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| Chen Xiaodong,Ouyang Yuzhu,Chen Zhizhang.Nicotine Extracting from Waste Tobacco Plants by Tannic Acid Precipitation[J].Chinese Wild Plant Resources,2010,29(5):58-59,63. |
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| Authors: | Chen Xiaodong Ouyang Yuzhu Chen Zhizhang |
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| Affiliation: | 1.Library of Jishou University,Jishou 416000 China;2.College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,China) |
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| Abstract: | The nicotine was extracted from waste tobacco plants with ultrasonic method and the tannic acid as precipitant.The influences of extraction medium,ratio of material and medium,extraction time and temperature,precipitant dosage on extraction rate of nicotine were investigated.The results showed that using water to extract medium,material-medium ratio of 1∶15（g/mL）,4.5 g tannic acid as precipitation,ultrasonic extraction 30 min in 70℃,the extraction ratio of nicotine is 1.06%. |
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| Keywords: | waste tobaccos nicotine tannic acid ultrasonic wave |
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