Results 11 to 20 of about 2,940 (212)

Dispersed Mobile-Phase Countercurrent Chromatography

Separations, 2016
Countercurrent distribution based on liquid–liquid partition is a powerful separation method with minimal incurrence of loss of solutes, but its industrial application has been limited by cumbersome shifting of immiscible solvents.
Timothy Yiu-Cheong Ho, Hong Xue
doaj   +2 more sources

Evaluation of Inter-Apparatus Separation Method Transferability in Countercurrent Chromatography and Centrifugal Partition Chromatography

Separations, 2019
In the countercurrent chromatography and centrifugal partition chromatography, separation method transfer and scale-up is often described as an easy and straightforward procedure.
Simon Roehrer, Mirjana Minceva
doaj   +2 more sources

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

Separations
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, Zihao Zhong, Lijuan Zhang, Xi Bai   +3 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

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

He 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, DING You-qian, WANG Xiu-feng, GANG Fa-yuan, YUE Yuan-zhen, FU Zhi-hai, BAI Long   +6 more
doaj   +1 more source

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

Journal 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.
Šmelcerović Andrija A., Schiebel Mirko, Đorđević Siniša M.   +2 more
doaj   +1 more source

Synthesis and Application of Zearalenone Substitute Cyclododecyl 2,4-Dihydroxybenzoate

Liang you shipin ke-ji, 2021
Cyclododecyl 2,4-dihydroxybenzoate (CDHB) is very similar to zearalenone (ZEN) in terms of size,shape,steric conformation and property.It is commonly used as a template of ZEN for the preparation of molecularly imprinted polymers.N’N′-carbonyldiimidazole
HAN Yang-ying, WANG Jun, LIU Hu-ju, SUN Chang-po   +3 more
doaj   +1 more source

Profiling and Isolation of Ten Rare Branched-Chain Alkylresorcinols in Quinoa

Molecules, 2023
Alkylresorcinols (∑ARs) are bioactive lipid compounds predominantly found in cereals. These amphiphilic compounds exist in a high structural diversity and can be divided into two main groups, i.e., 5-alkylresorcinols (ARs) and 2-methyl-5-alkylresorcinols
Tim Hammerschick, Walter Vetter
doaj   +1 more source

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

Isolation of Two New Phenolic Glycosides from Castanopsis chinensis Hance by Combined Multistep CC and HSCCC Separation and Evaluation of Their Antioxidant Activity

Molecules, 2023
The characteristics of high polarity and susceptibility to oxidation in phenolic glycosides increase the difficulty of their separation from natural products.
Ya-Feng Wang, Ping Lin, Yong-Lin Huang, Rui-Jie He, Bing-Yuan Yang, Zhang-Bin Liu   +5 more
doaj   +1 more source