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| 水蛭乙醇提取工艺的研究 | |
| 引用本文： | 刘晔玮,邸多隆,张建民,陈晓琴.水蛭乙醇提取工艺的研究[J].精细化工,2004,21(3):168-170. |
| 作者姓名： | 刘晔玮 邸多隆 张建民 陈晓琴 |
| 作者单位： | 1. 河西学院,化学系,甘肃,张掖,734000 2. 中国科学院,兰州化学物理研究所,甘肃省天然药物重点实验室,甘肃,兰州,730000 3. 张掖市药品检验所,甘肃,张掖,734000 |
| 摘 要： | 以乙醇浸膏得率和浸膏中氮质量分数为评价指标,选择乙醇体积分数、乙醇与水蛭质量比、提取时间为考察因素,利用正交实验L9(34)确定乙醇提取水蛭最佳工艺条件为:φ(乙醇)=50%,m〔φ(乙醇)=50%〕∶m(水蛭)=6∶1,提取时间1 5h,共提取2次。平均乙醇浸膏得率13 24%,浸膏中平均氮质量分数w(N)=11 05%。 |
| 关 键 词： | 水蛭 乙醇 浸膏得率 |
| 文章编号： | 1003-5214(2004)03-0168-03 |
Study of Ethanol Extraction Process for Whitmania Pigra Whitman |
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| LIU Ye-wei,DI Duo-long,ZHANG Jian-min,CHEN Xiao-qin.Study of Ethanol Extraction Process for Whitmania Pigra Whitman[J].Fine Chemicals,2004,21(3):168-170. | |
| Authors: | LIU Ye-wei DI Duo-long ZHANG Jian-min CHEN Xiao-qin |
| Affiliation: | LIU Ye-wei~1,DI Duo-long~2,ZHANG Jian-min~3,CHEN Xiao-qin~3 |
| Abstract: | With extraction rate and mass fraction of nitrogen in the extract as assessment indices,the optimum extracting conditions for Whitmania pigra Whitman were studied by the orthogonal design.Thus,extracting for twice (1.5 h each) with φ (ethanol)=50% and m (ethanol)∶ m (Whitmania pigra Whitman)=6∶ 1,the average extraction rate and the mass fraction of nitrogen in the extract were 13.24% and 11.05%( n =3) respectively. |
| Keywords: | Whitmania pigra Whitman ethanol extraction rate |
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