Results 21 to 30 of about 1,288 (154)

Isolation and Purification of Oridonin from the Whole Plant of Isodon rubescens by High-Speed Counter-Current Chromatography

Molecules, 2011
Semi-preparative high-speed counter-current chromatography (HSCCC) was successfully used for isolation and purification of oridonin from Isodon rubescens by using a two-phase-solvent system composed of n-hexane-ethyl acetate-methanol-water (2.8:5:2.8:5 ...
ChunYue Yu, Sen Li, Weili Yang, Jing Wei, Jing Wang, Chenghua Han, Yuhua Bai, Fa He   +7 more
doaj   +2 more sources

Preparative separation and purification of bufadienolides from ChanSu by high-speed counter-current chromatography combined with preparative HPLC

Química Nova, 2013
Eight bufadienolides were successfully isolated and purified from ChanSu by high-speed counter-current chromatography (HSCCC) combined with preparative HPLC (prep-HPLC).
Jialian Li, Yongqing Zhang, Yunliang Lin, Xiao Wang, Lei Fang, Yanling Geng, Qinde Zhang   +6 more
doaj   +2 more sources

Identifying Natural syNergist from Pongamia pinnata Using High-Speed Counter-Current Chromatography Combined with Isobolographic Analysis

Molecules, 2017
For identifying the synergistic compounds from Pongamia pinnata, an approach based on high-speed counter-current chromatography (HSCCC) combined with isobolographic analysis was designed to detect the synergistic effects in the complex mixture [...]
Hao Yin, Yubai Wei, Rouwen Chen, Si Zhang, Lijuan Long, Hang Yin, Xinpeng Tian, Weihong He   +7 more
doaj   +2 more sources

Developments of instruments and methods related with high-speed countercurrent chromatography and their applications in research of natural medicines

Open Chemistry, 2012
High-speed countercurrent chromatography (HSCCC) is a liquid-liquid separation chromatographic technique which uses no solid supporting medium. During its rapid development in the last 30 years, great progress has been made in the instrumentation, the ...
Yao Shun, Cao Yu, Jia Chun-mei, Wang Yan, Song Hang   +4 more
doaj   +2 more sources

Antimycobacterial and Nitric Oxide Production Inhibitory Activities of Goyazensolide and Centratherin Isolated From Eremanthus crotonoides by High-Speed Countercurrent Chromatography. [PDF]

Chem Biodivers
ABSTRACT In this study, bioassay‐guided fractionation of the ethanolic extract from Eremanthus crotonoides leaves enabled the isolation of two bioactive sesquiterpene lactones, centratherin and goyazensolide, which were evaluated for their antimycobacterial and anti‐inflammatory properties.
da Rocha Ximenes NG, Calixto SD, Simão TLBV, Lassunskaia EB, de Homobono de Brito Moura P, Leal IRC, Muzitano MF, Pinto SC.   +7 more
europepmc   +2 more sources

Advances in Eco-Friendly Extraction of Fruit Bioactive Compounds: Technologies, Challenges and Future Directions. [PDF]

Anal Sci Adv
Fruit bioactive compounds offer antioxidant, anti‐inflammatory, and preventive benefits, yet extraction is hindered by poor solubility and conventional methods using toxic solvents and high energy. This review evaluates traditional and advanced eco‐friendly technologies, highlighting efficiency, selectivity, and sustainability.
Hndeya AG, Sbhatu DB, Gebreyohannes G.
europepmc   +2 more sources

Separation of Non-alkaloid Toxin Lignans and New Flavonoid from Himalayan Mayapple (Podophyllum Hexandrum Royle) by High-Speed Counter-Current Chromatography and Their Anti-inflammatory Activity Evaluation

Pakistan Journal of Analytical & Environmental Chemistry
Podophyllum hexandrum Royle (Berberidaceae) is reported from the Himalayan region and China. It is also known as the Himalayan Mayapple and is reported for the treatment of constipation, fever, jaundice, liver disorders, etc.
Iftikhar Ali, Shahid Aziz, Marzia Zahra, Yan Mu, Erum Dilshad, Meher Ali, Xiao Wang   +6 more
doaj   +3 more sources

HPLC-ESI-QTOF-MS/MS Analysis of Artemisia cina Leaves Aqueous Extract and Flavonoid Isolation Using High-speed Countercurrent Chromatography [PDF]

Acta Poloniae Pharmaceutica
Artemisia cina Berg ex Poljakov, a shrubby plant endemic to the semi-arid areas of Kazakhstan, has as a long history of being used in traditional medicines as an antitumour, antifungal and anthelmintic agent.
Sonwabiso Tshunungwa, Bashaer Alsharif, Tolkyn Bekezhanova, Kulzada Begalinovna Bazhykova, Wirginia Kukula-Koch, Fabio Boylan   +5 more
doaj   +1 more source

Optimizations of extraction and separation process of saponins and in vitro antioxidant activity from the female gonad of Apostichopus japonicus

Shipin yu jixie, 2022
Objective: This study aimed to optimize the ultrasonic-assisted extraction technology and HSCCC separation process of saponins from the female gonad of Apostichopus japonicus and to explore their antioxidant activities.
ZHONG Jing-shi, ZHANG Jian, LIU Fang, WANG Gong-ming, WANG Yi-xin   +4 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