| Separation of Quercentin by Pre-dispersed Solvent Extraction |
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| 作者姓名： | 胡伟 孙瑛 叶汝强 吴树森 刘洪来 |
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| 作者单位： | Department of Chemistry，East University of Science and Technology，Shanghai 200237，China，Department of Chemistry，East University of Science and Technology，Shanghai 200237，China，Department of Chemistry，East University of Science and Technology，Shanghai 200237，China，Department of Chemistry，East University of Science and Technology，Shanghai 200237，China，Department of Chemistry，East University of Science and Technology，Shanghai 200237，China |
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| 基金项目： | Supported by the National Natural Science Foundation of China (No.29736170) |
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| 摘 要： | Pre-dispersed solvent extraction (PDSE) was used to extract quercentin from its diluted solution. The influences of temperature, phase volume ratio (PVR), concentration of sodium Dodecyl benzene sulphonate and pH value etc. on the extraction efficiency were examined. It is found that, compared with traditional extraction techniques under the same condition, a higher extraction productivity can be obtained by PDSE. The stability of colloidal liquid aphrons plays an important role in this process. In a certain scope, the extraction efficiency increases with PVR. Excessive amount of solvent is not much helpful. A new analytical method by using ultraviolet spectrometer to determine the concentration of quercentin is established.
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Separation of Quercentin by Pre-dispersed Solvent Extraction |
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| HU Weil,SUN Ying,YE Ruqiang WU Shusenl and
LIU Honglai.Separation of Quercentin by Pre-dispersed Solvent Extraction[J].Chinese Journal of Chemical Engineering,2003(3). |
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| Authors: | HU Weil SUN Ying YE Ruqiang WU Shusenl and
LIU Honglai |
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| Affiliation: | HU Weil,SUN Ying,YE Ruqiang WU Shusenl and
LIU Honglai
Department of Chemistry,East China University of Science and Technology,Shanghai 200237,China |
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| Abstract: | Pre-dispersed solvent extraction (PDSE) was used to extract quercentin from its diluted solution. The influences of temperature, phase volume ratio (PVR), concentration of sodium Dodecyl benzene sulphonate and pH value etc. on the extraction efficiency were examined. It is found that, compared with traditional extraction techniques under the same condition, a higher extraction productivity can be obtained by PDSE. The stability of colloidal liquid aphrons plays an important role in this process. In a certain scope, the extraction efficiency increases with PVR. Excessive amount of solvent is not much helpful. A new analytical method by using ultraviolet spectrometer to determine the concentration of quercentin is established. |
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| Keywords: | pre-dispersed solvent extraction quercentin colloidal liquid aphron separation |
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