Results 11 to 20 of about 40,178 (259)

Scale-up of Aflatoxin Purification by Centrifugal Partition Chromatography

Toxins, 2023
Aflatoxins (AFs) are a group of secondary metabolites that cause several diseases in both animals and humans. Since the discovery of this group of toxins, several effects were revealed, such as hepatic changes, carcinoma, failure, and cancer of the liver.
Gábor Endre, Babett Edit Nagy, Dániel Hercegfalvi, Csenge Kasuba, Csaba Vágvölgyi, András Szekeres   +5 more
doaj   +1 more source

High speed counter current chromatography: A support-free LC technique

Journal of Pharmacy and Bioallied Sciences, 2009
As separation of components is the major requirement of an analytical chemist, there is always a need for a convenient high throughput technique with minimum sample loss, high efficiency, high resolution, and ease of sample recovery, without ...
Neha Sethi, Ankit Anand, Aarti Sharma, Kaushal K Chandrul, Garima Jain, Kona S Srinivasa   +5 more
doaj   +3 more sources

Alternative Extraction and Downstream Purification Processes for Anthocyanins

Molecules, 2022
Anthocyanins are natural pigments displaying different attractive colors ranging from red, violet, to blue. These pigments present health benefits that increased their use in food, nutraceuticals, and the cosmetic industry.
Ana N. Nunes, Alexandra Borges, Ana A. Matias, Maria Rosário Bronze, Joana Oliveira   +4 more
doaj   +1 more source

Easy Computation of the Various Topologies and Modes of Liquid–Liquid Partition Chromatography by the Theory of Random Walks

Separations, 2021
The article revisits the discrete recurrence method to model the instruments of liquid–liquid partition chromatography as counter-current chromatography (CCC) and centrifugal partition chromatography (CPC).
Frédéric R. Dijoux, Tsvetelina Mandova
doaj   +1 more source

Development and Testing of a 4-Columns Periodic Counter-Current Chromatography System Based on Membrane Adsorbers

Separations, 2019
Continuous chromatography can surmount the disadvantages of batch chromatography like low productivities and extensive usage of consumables. In this work, a 4-column continuous chromatographic system based on the principle of periodic counter-current ...
Chantal Brämer, Frank Lammers, Thomas Scheper, Sascha Beutel   +3 more
doaj   +1 more source

Application of Preparative High-Speed Counter-Current Chromatography for the Separation of Two Alkaloids from the Roots of Tabernaemontana catharinensis (Apocynaceae)

Molecules, 2011
The methanolic extract of Tabernaemontana catharinensis (Apocynaceae) roots, which contains alkaloids with several biological activities, was separated on a preparative scale using high-speed counter-current chromatography. The optimum solvent system was
Raimundo Braz-Filho, Ivo J. Curcino Vieira, Rodrigo R. Oliveira, Milena S. Gonçalves   +3 more
doaj   +1 more source

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

Chiral Separations in Preparative Scale: A Medicinal Chemistry Point of View

Molecules, 2020
Enantiomeric separation is a key step in the development of a new chiral drug. Preparative liquid chromatography (LC) continues to be the technique of choice either during the drug discovery process, to achieve a few milligrams, or to a scale-up during ...
Madalena M.M. Pinto, Carla Fernandes, Maria E. Tiritan   +2 more
doaj   +1 more source

Preparative separation and purification of deoxyschizandrin from Schisandrae Sphenantherae Fructus by high-speed counter-current chromatography

Journal of Pharmaceutical Analysis, 2013
A high-speed counter-current chromatography (HSCCC) method was successfully developed for the preparative separation and purification of deoxyschizandrin from Schisandrae Sphenantherae Fructus in one step.
Xin-Ying Li, Mei Yang, Jie-Yun Huang, Xiao-Xue Yu, Min-Qian Zhao, Zhi-Kun Liang, Zhi-Sheng Xie, Xin-Jun Xu   +7 more
doaj   +1 more source

Preparative separation of polyphenols from artichoke by polyamide column chromatography and high-speed counter-current chromatography

Química Nova, 2013
An efficient method for the rapid separation and purification of polyphenols from artichoke by polyamide column chromatography in combination with high-speed counter-current chromatography (HSCCC) was successfully built.
Xikai Shu, Mei Wang, Daicheng Liu, Daijie Wang, Xiaojing Lin, Jianhua Liu, Xiao Wang, Luqi Huang   +7 more
doaj   +1 more source