Results 81 to 90 of about 2,940 (212)

Preparative Isolation of Three Anthraquinones from Rumex japonicus by High-Speed Counter-Current Chromatography

open access: yesMolecules, 2011
Three anthraquinones—emodin, chrysophanol, and physcion—were successfully purified from the dichloromethane extract of the Chinese medicinal herb Rumex japonicus by high-speed counter-current chromatography (HSCCC).
Shuying Guo   +4 more
doaj   +1 more source

Separations with a Liquid Stationary Phase: Countercurrent Chromatography or Centrifugal Partition Chromatography

open access: yes, 2015
International audienceEver since Yoichiro Ito reported the separation of blood plasma cells with a sealed helical tube in 1966, countercurrent chromatography (CCC) has been a fertile ground for instrumental and technical innovations.
Karine Faure   +3 more
core   +1 more source

Profiling of sesquiterpenoid fractions from Artemisia annua L. and testing their in vitro anti-SARS-CoV-2 activity

open access: yesBiomolecules & Biomedicine
The current state of research on the anti‑SARS‑CoV‑2 potential of artemisinin‑related compounds has identified arteannuin B as a potent inhibitor of the nCoV‑2019BetaCov/Wuhan/WiV04/2019 and BetaCov/Italy/CDG1/2020 strains of the virus.
Irma Gušić   +11 more
doaj   +1 more source

Preparative Fractionation of Brazilian Red Propolis Extract Using Step-Gradient Counter-Current Chromatography

open access: yesMolecules
Propolis is a resinous bee product with a very complex composition, which is dependent upon the plant sources that bees visit. Due to the promising antimicrobial activities of red Brazilian propolis, it is paramount to identify the compounds responsible ...
Begoña Gimenez-Cassina Lopez   +7 more
doaj   +1 more source

Enantioseparation using a counter-current bioreactor

open access: yes, 2011
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The potential of countercurrent chromatography (CCC) as a small footprint bioreactor/separator for manufacture of enantiopure chiral molecules was explored,
Grudzien, Lukasz
core  

Elution-extrusion countercurrent chromatography separation of six pairs of isomeric iridoids fromCornus officinalisSieb. et Zucc. guided by ion current extraction in mass spectrometry

open access: yes, 2018
A mass spectrometry-guided elution-extrusion countercurrent chromatography protocol was developed to separate chemical components from Cornus officinalis Sieb. et Zucc. In this study, ion current extraction, a mass spectrometry-based data postacquisition
Sun, Wenji   +3 more
core   +1 more source

Separation and Purification of Lycium barbarum Polysaccharides in Neuroinflammation by High-speed Countercurrent Chromatography

open access: yesShipin gongye ke-ji
Objective: This study constructed a novel method for the separation and purification of polysaccharides from Lycium barbarum polysaccharide (LBPs) by high-speed countercurrent chromatography with aqueoust two-phase system, and investigated its effect on ...
Gaofeng HAO   +4 more
doaj   +1 more source

Schinus terebinthifolia Raddi: Compounds Isolated by Countercurrent Chromatography and Biological Activities

open access: yesSeparations
The chemical composition of natural products is complex and the investigation of bioactivities of compounds of interest demands their isolation. S.
Mara Junqueira Carneiro   +9 more
doaj   +1 more source

Capparis cartilaginea decne (capparaceae): isolation of flavonoids by high-speed countercurrent chromatography and their anti-inflammatory evaluation. [PDF]

open access: yesFront Pharmacol, 2023
Alsharif B   +6 more
europepmc   +1 more source

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