Results 41 to 50 of about 21,803,890 (159)

Isolamento do alcalóide ricinina das folhas de Ricinus communis (Euphorbiaceae) através de cromatografias em contracorrente Isolation of the alkaloid ricinine from the leaves of Ricinus communis (Euphorbiaceae) through counter-current chromatography

Química Nova, 2005
Droplet counter-current chromatography, rotation locular counter-current chromatography and high-speed counter-current chromatography were applied to the preparative separation of the alkaloid ricinine from the dichloromethane extracts of Ricinus ...
Ana Cristina Leite, Elaine Cristina Cabral, Djalma Antônio P. dos Santos, João Batista Fernandes, Paulo Cezar Vieira, M. Fátima das G. F. da Silva   +5 more
doaj   +1 more source

Preparative Separation of Phenolic Compounds from Halimodendron halodendron by High-Speed Counter-Current Chromatography

Molecules, 2010
Three phenolic compounds, p-hydroxybenzoic acid (1), isorhamnetin-3-O-β-D-rutinoside (2), and 3,3'-di-O-methylquercetin (5), along with a phenolic mixture were successfully separated from the ethyl acetate crude extract of Halimodendron halodendron by ...
Zhu Yu, Jianguo Han, Ligang Zhou, Qi Wang, Jianglin Zhao, Haifeng Gao, Jihua Wang, Fuyu Yang   +7 more
doaj   +1 more source

A green strategy for obtaining anthraquinones from Rheum tanguticum by subcritical water

Open Chemistry, 2020
Rheum tanguticum is a traditional Chinese herbal medicine, which contains abundant anthraquinones. In this study, anthraquinones were efficiently extracted from Rheum tanguticum by subcritical water extraction (SWE). The parameters of extraction time (33–
Zhang Guoying, Chi Xiaofeng
doaj   +1 more source

Phytochemical analysis of Panax species: a review

Journal of Ginseng Research, 2021
Panax species have gained numerous attentions because of their various biological effects on cardiovascular, kidney, reproductive diseases known for a long time.
Yuangui Yang, Zhengcai Ju, Yingbo Yang, Yanhai Zhang, Li Yang, Zhengtao Wang   +5 more
doaj   +1 more source

Isolation and Purification of Galloyl, Caffeoyl, and Hexahydroxydiphenoyl Esters of Glucoses from Balanophora simaoensis by High-Speed Countercurrent Chromatography and Their Antioxidant Activities In Vitro

Molecules, 2018
High-speed counter-current chromatography was used to separate and purify galloyl, caffeoyl, and hexahydroxydiphenoyl esters of glucoses from the aerial parts of the parasitic plant Balanophora simaoensis for the first time using n-hexane-ethyl acetate ...
Lei Fang, Tian-Tian He, Xiao Wang, Jie Zhou   +3 more
doaj   +1 more source

Purification of optical imaging ligand-Cybesin by high-speed counter-current chromatography [PDF]

Journal of Chromatography B, 2010
Fluorescent Cybesin (Cypate-Bombesin Peptide Analogue Conjugate) was synthesized from Indocyanine Green (ICG) and the bombesin receptor ligand as a contrast agent for detecting pancreas tumors. However, the LC-MS analysis indicated that the target compound was only a minor component in the reaction mixture.
Zhiyong, Ma, Ying, Ma, Xilin, Sun, Yunpeng, Ye, Baozhong, Shen, Xiaoyuan, Chen, Yoichiro, Ito   +6 more
openaire   +2 more sources

Isolation and Purification of Three Ecdysteroids from the Stems of Diploclisia glaucescens by High-Speed Countercurrent Chromatography and Their Anti-Inflammatory Activities In Vitro

Molecules, 2017
High-speed counter-current chromatography was used to separate and purify ecdysteroids for the first time from the stems of Diploclisia glaucescens using a two-phase solvent system composed of ethyl acetate–n-butanol–ethanol–water (3:0.2:0.8:3, v/v ...
Lei Fang, Jialian Li, Jie Zhou, Xiao Wang, Lanping Guo   +4 more
doaj   +1 more source

Preparative separation of flavonoids from the medicinal plant Davilla elliptica St. Hill. by high-speed counter-current chromatography

Química Nova, 2006
High-speed counter-current chromatography (HSCCC) is a major tool for the fast separation of natural products from plants. It was used for the preparative isolation of the flavonoid monoglucosides present in the aerial parts of the Davilla elliptica St ...
Daniel Rinaldo, Marcelo Aparecido Silva, Clenilson Martins Rodrigues, Tamara Regina Calvo, Miriam Sannomiya, Lourdes Campaner dos Santos, Wagner Vilegas, Hélio Kushima, Clélia Akiko Hiruma-Lima, Alba Regina Monteiro de Souza Brito   +9 more
doaj   +3 more sources

The molecular mechanism for inhibiting the growth of nasopharyngeal carcinoma cells using polymethoxyflavonoids purified from pericarp of Citrus reticulata ‘Chachi’ via HSCCC

Frontiers in Pharmacology, 2023
Polymethoxyflavonoids (PMFs), the main bioactive compounds naturally occurring in the pericarp of Citrus reticulata ‘Chachi’ (CRCP), possess significant antitumor action. However, the action of PMFs in nasopharyngeal carcinoma (NPC) is currently unknown.
Wanling Yang, Yiyao Liang, Yujie Liu, Baizhong Chen, Kanghui Wang, Xiaojing Chen, Zhiqian Yu, Depo Yang, Yi Cai, Guodong Zheng   +9 more
doaj   +1 more source

Preparative isolation and purification of 12,13-dihydroxyeuparin from Radix Eupatorii Chinensis by high-speed counter-current chromatography

Journal of Pharmaceutical Analysis, 2012
An efficient method for the isolation and purification of 12,13-dihydroxyeuparin from Radix Eupatorii Chinensis by high speed counter-current chromatography (HSCCC) was established in this paper.
Mei Yang, Xin-Jun Xu, Chun-Yan Xie, Jie-Yun Huang, Zhi-Sheng Xie, De-Po Yang   +5 more
doaj   +1 more source