Separation by Macroporous Resins of 10-Hydroxycamptothecin from the Remainder Extracts in the Production of Camptothecin

In the present study, a method for the separation by macroporous resins of 10-hydroxycamptothecin (HCPT) from the extracts remaining from the production of camptothecin (CPT) has been developed. The adsorption/desorption characteristics of HCPT on eight macroporous resins were compared. Of these, th...

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Main Authors: Lei Yang, Chunjian Zhao, Chunying Li, Jiahui Li, Xiaojuan Li, Yuangang Zu
Format: Article
Language:English
Published: SAGE Publications 2009-03-01
Series:Adsorption Science & Technology
Online Access:https://doi.org/10.1260/026361709789625298
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author Lei Yang
Chunjian Zhao
Chunying Li
Jiahui Li
Xiaojuan Li
Yuangang Zu
author_facet Lei Yang
Chunjian Zhao
Chunying Li
Jiahui Li
Xiaojuan Li
Yuangang Zu
author_sort Lei Yang
collection DOAJ
description In the present study, a method for the separation by macroporous resins of 10-hydroxycamptothecin (HCPT) from the extracts remaining from the production of camptothecin (CPT) has been developed. The adsorption/desorption characteristics of HCPT on eight macroporous resins were compared. Of these, the X-5 resin offered the best adsorption/desorption densities for HCPT, with its adsorption data being best fitted by the Langmuir and Freundlich isotherms. Dynamic adsorption/desorption experiments were carried out in a column packed with X-5 resin in order to optimize the separation process. The optimum parameters for adsorption were as follows: sample solution concentration = 0.3156 mg/mℓ, processing volume = 5 BV (bed volume), flow rate = 4 BV/h, temperature = 313 K, pH = 5; for desorption, the corresponding parameters were: 10–60% ethanol as eluent, processing volume = 2 BV, flow rate = 4 BV/h. After being treated with X-5 resin, the content of HCPT in the dry product increased from 0.30% to 7.19%, i.e. a 23.9-fold increase when compared to the untreated extract, with the recovery yield of HCPT being 82.1%.
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spelling doaj.art-6509979ca59c45dda4d3ccd10d1a28b22024-03-02T09:53:38ZengSAGE PublicationsAdsorption Science & Technology0263-61742048-40382009-03-012710.1260/026361709789625298Separation by Macroporous Resins of 10-Hydroxycamptothecin from the Remainder Extracts in the Production of CamptothecinLei YangChunjian ZhaoChunying LiJiahui LiXiaojuan LiYuangang ZuIn the present study, a method for the separation by macroporous resins of 10-hydroxycamptothecin (HCPT) from the extracts remaining from the production of camptothecin (CPT) has been developed. The adsorption/desorption characteristics of HCPT on eight macroporous resins were compared. Of these, the X-5 resin offered the best adsorption/desorption densities for HCPT, with its adsorption data being best fitted by the Langmuir and Freundlich isotherms. Dynamic adsorption/desorption experiments were carried out in a column packed with X-5 resin in order to optimize the separation process. The optimum parameters for adsorption were as follows: sample solution concentration = 0.3156 mg/mℓ, processing volume = 5 BV (bed volume), flow rate = 4 BV/h, temperature = 313 K, pH = 5; for desorption, the corresponding parameters were: 10–60% ethanol as eluent, processing volume = 2 BV, flow rate = 4 BV/h. After being treated with X-5 resin, the content of HCPT in the dry product increased from 0.30% to 7.19%, i.e. a 23.9-fold increase when compared to the untreated extract, with the recovery yield of HCPT being 82.1%.https://doi.org/10.1260/026361709789625298
spellingShingle Lei Yang
Chunjian Zhao
Chunying Li
Jiahui Li
Xiaojuan Li
Yuangang Zu
Separation by Macroporous Resins of 10-Hydroxycamptothecin from the Remainder Extracts in the Production of Camptothecin
Adsorption Science & Technology
title Separation by Macroporous Resins of 10-Hydroxycamptothecin from the Remainder Extracts in the Production of Camptothecin
title_full Separation by Macroporous Resins of 10-Hydroxycamptothecin from the Remainder Extracts in the Production of Camptothecin
title_fullStr Separation by Macroporous Resins of 10-Hydroxycamptothecin from the Remainder Extracts in the Production of Camptothecin
title_full_unstemmed Separation by Macroporous Resins of 10-Hydroxycamptothecin from the Remainder Extracts in the Production of Camptothecin
title_short Separation by Macroporous Resins of 10-Hydroxycamptothecin from the Remainder Extracts in the Production of Camptothecin
title_sort separation by macroporous resins of 10 hydroxycamptothecin from the remainder extracts in the production of camptothecin
url https://doi.org/10.1260/026361709789625298
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