Results 11 to 20 of about 1,452 (205)

Research Progress in the Separation of Chemical Components from Essential Oils by High-Speed Countercurrent Chromatography

open access: yesSeparations
Essential oils (EOs) are vital secondary metabolites in plants. They have garnered substantial attention owing to their distinct flavors and desirable attributes, including potent antioxidant, antibacterial, and antitumor properties.
Linhong He   +3 more
doaj   +2 more sources

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 [PDF]

open access: yesMolecules, 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   +3 more
doaj   +2 more sources

Review of High-Speed Countercurrent Chromatography in Separation of Lanthanides and Actinides

open access: yesHe huaxue yu fangshe huaxue, 2022
In the field of radiochemistry, separation of lanthanides and actinides has always been one of the research hotspots. In order to achieve the burnup analysis, the lanthanide and actinide elements in the solution need to be separated.
LI Yu-hao   +6 more
doaj   +2 more sources

The isolation of (6S, 9S)-cyclo(prolylvalyl) from marine actinomycete, by use of high speed countercurrent chromatography [PDF]

open access: yesJournal of the Serbian Chemical Society, 2002
The marine actinomycete B 1758 came from the actinomycete collection of the Alfred Wegener Institute for Polar and Marine Research in Bremerhafen, Germany. 1.079 g of raw extract was obtained by fermentation.
SINISA DJORDJEVIC   +2 more
doaj   +1 more source

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

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   +2 more sources

Chiral (Stereoselective) Drugs, Asymmetric Synthesis, and Racemic Resolution Methods. [PDF]

open access: yesChirality
Chirality is crucial in drug development since both biological targets in the organism and the majority of pharmaceutical compounds are chiral. The synthesis and resolution of chiral compounds are critical steps while developing chiral drugs. Asymmetric synthesis and racemic resolution are the two most common methods for obtaining enantiopure drugs ...
Karayavuz B, Kirmizioglu CK.
europepmc   +2 more sources

A Protocol for Characterizing Comprehensive Two-Dimensional Liquid Chromatography Systems. [PDF]

open access: yesJ Sep Sci
ABSTRACT Comprehensive two‐dimensional liquid chromatography (LC × LC) is an effective strategy to increase peak capacity and improve separation performance for complex samples, offering a valuable alternative to conventional one‐dimensional liquid chromatography (1D‐LC).
Aebischer MK   +12 more
europepmc   +2 more sources

Sample Preparation and Separation of Lignans by Liquid Chromatography. [PDF]

open access: yesJ Sep Sci
ABSTRACT Lignans are important phytochemicals found mostly in the resins of coniferous trees, but are also introduced into human diets through foods such as sesame seeds and extra‐virgin olive oil. They are pharmacologically interesting mainly because of their antioxidant activities, and they have also been shown to have cytotoxic and antimicrobial ...
Paloluoto M, Wiedmer SK.
europepmc   +2 more sources

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

open access: yesActa 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   +5 more
doaj   +2 more sources

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