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Start Over Author "Fang-Yuan Fan" Publisher wiley
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2. Selective elution of tea catechins and caffeine from polyvinylpolypyrrolidone

Author

Jian-Liang Lu, Xin-Qiang Zheng, Gan Quan, Zhan-Bo Dong, Fang-Yuan Fan, Kwan-Jeong Song, and Yue-Rong Liang

Subjects
chemistry.chemical_compound, Ethanol, Polyvinylpolypyrrolidone, Chromatography, chemistry, Elution, Desorption, Aqueous ethanol, Caffeine, Industrial and Manufacturing Engineering, Food Science
Abstract

Summary Desorption of catechins and caffeine from polyvinylpolypyrrolidone (PVPP) was comprehensively investigated. The result showed that caffeine could easily be desorbed from PVPP by the tested solvents except n-hexane, while catechins could only be thoroughly done by dimethyl sulphoxide (DMSO) and N, N-dimethylformamide (DMF). Excellent desorption efficiency of DMSO and DMF might be attributed to their high dipole moments and H-bond potentials. Addition of ethanol was recommended considering the elution efficiency and fluidity, but ethanol volume should be

Published
2013

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