Results 81 to 90 of about 740 (163)

Purification of Flavonoids from Mulberry Leaves via High-Speed Counter-Current Chromatography

, 2019
In order to obtain high-purity flavonoid products, the extracts from mulberry leaves were separated and purified via high-speed counter-current chromatography (HSCCC).
Jun Zhang, Pian Zhang, Kang-Ling Zhu, Heng Zhang, Yan Wang, Yan Li   +5 more
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Isolation and purification of canthaxanthin from the microalga Chlorella zofingiensis by high-speed counter-current chromatography

, 2006
Certain microalgae are considered to be a potential source of canthaxanthin, which possesses strong antioxidant and anticancer activities. A high-speed counter-current chromatography (HSCCC) method was developed for the separation and purification of ...
Li, HB, Fan, KW, Chen, F
core   +1 more source

Preparative Isolation of Two Prenylated Biflavonoids from the Roots and Rhizomes of Sinopodophyllum emodi by Sephadex LH-20 Column and High-Speed Counter-Current Chromatography

Molecules, 2015
Two prenylated biflavonoids, podoverines B–C, were isolated from the dried roots and rhizomes of Sinopodophyllum emodi using a Sephadex LH-20 column (SLHC) and high-speed counter-current chromatography (HSCCC).
Yan-Jun Sun, Li-Xin Pei, Kai-Bo Wang, Yin-Shi Sun, Jun-Min Wang, Yan-Li Zhang, Mei-Ling Gao, Bao-Yu Ji   +7 more
doaj   +1 more source

Counter-current chromatography with off-line detection by ultra high performance liquid chromatography/high resolution mass spectrometry in the study of the phenolic profile of Lippia origanoides

, 2017
Lippia origanoides (Verbenaceae) is an important Brazilian medicinal plant, also used for culinary purposes. Most chemical studies with this plant have been focused on its volatile composition.
Leitão, Suzana Guimaraes, Oliveira, Danilo R., Pereira, João Paulo Barreto, Danilo R. Oliveira, Celano, Rita, Piccinelli, Anna Lisa, Rita Celano, Rastrelli, Luca, João Paulo Barreto Pereira, Anna Lisa Piccinelli, Suzana Guimaraes Leitão, Gilda Guimarães Leitão, Douglas K.T. Vicco, Luca Campone, Vicco, Douglas K. T., de Morais Simão, Gustavo, Luca Rastrelli, Campone, Luca, Gustavo de Morais Simão, Leitão, Gilda Guimarães   +19 more
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Studies on Separation and Their Anti-Inflammatory Activity Evaluation of Lupane-Triterpenoid Aglycones from Leaves of W.W.Smith by HSCCC

Natural Product Communications
Objective Lupane-type triterpenoid aglycones from Acanthopanax gracilistylus leaves (AGS) are underexplored compared to roots. This study aimed to establish an efficient isolation method and evaluate their anti-inflammatory potential.
Mao-Fang Lu, Man-Xia Lu, Xiang Wang, Geon-Ho Lee, Lin Luo, Xing-Gui Tan, Chang-Soo Yook, Xiang-Qian Liu   +7 more
doaj   +1 more source

Preparative isolation and purification of bergapten and imperatorin from the medicinal plant Cnidium monnieri using high-speed counter-current chromatography by stepwise increasing the flow-rate of the mobile phase

, 2004
A high-speed counter-current chromatography (HSCCC) method was developed for the preparative separation and purification of bergapten and imperatorin from the Chinese medicinal plant Cnidium monnieri (L.) Cusson.
Li, HB, Chen, F
core   +1 more source

Isolation and purification of macrocyclic components from Penicillium fermentation broth by high-speed counter-current chromatography

, 2009
In this paper, high-speed counter-current chromatography (HSCCC), assisted with ESI-MS, was first successfully applied to the preparative separation of three macrolide antibiotics, brefeldin A (12.6 mg, 99.0%), 7'-O-formylbrefeldin A (6.5 mg, 95.0%) and ...
Liu, Yan, Fang, Meijuan, Zhuang, Rongqiang, Zhao, Yufen, Gao, Xiang, Guo, Jiannan, Bao, Jian, Xu, Pengxiang, 赵玉芬   +8 more
core   +1 more source

Quick preparative separation of natural naphthopyranones with antioxidant activity by high-speed counter-current chromatography

, 2002
The natural naphthopyranones paepalantine (1), paepalantine-9O-β-D-glucopyranoside (2) and paepalantine-9-O-β-D-allopyranosyl-(1→6)-O-β-D-glucopyranoside (3) were separated in a preparative scale from the ethanolic extract of the capitula of Paepalanthus
Vilegas, Wagner, Leitão, Gilda G., Leitão, Suzana G.   +2 more
core   +2 more sources

Screening and Isolating Acetylcholinesterase Inhibitors from Olea europaea L. Fruit Using Ultrafiltration–Liquid Chromatography Coupled with High-Speed Counter-Current Chromatography

Separations
Alzheimer’s disease (AD) is a progressive neurodegenerative condition and one of the most prevalent types of dementia in older adults. Currently, the primary drugs used to treat AD are acetylcholinesterase (AChE) inhibitors.
Xingcui Wang, Yingshan Zhang, Jules Muhire, Duolong Di, Xinyi Huang, Dong Pei   +5 more
doaj   +1 more source

Counter-Current Chromatography Separation of Isatin Derivatives using the Sandmeyer Methodology

, 2010
A rapid and efficient method, using high-speed counter-current chromatography (HSCCC) technique, was developed for the separation of isomeric isatin derivatives, prepared following the Sandmeyer route.
Silva, Bárbara V., Almeida, Márcia R., Leitão, Gilda G., Barbosa, Jussara P., Pinto, Angelo C.   +4 more
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