Results 41 to 50 of about 1,915 (220)

Extraction of cocoa proanthocyanidins and their fractionation by sequential centrifugal partition chromatography and gel permeation chromatography [PDF]

, 2016
Erworben im Rahmen der Schweizer Nationallizenzen (http://www.nationallizenzen.ch)Cocoa beans contain secondary metabolites ranging from simple alkaloids to complex polyphenols with most of them believed to possess significant health benefits.
A Marston, A Othman, C Yang, E Hopmann, EO Afoakwa, I Tarascou, J Cheel, J Pérez-Jiménez, JB Friesen, JD Everette, JK Monrad, JR Green, K Kantz, K Khallouki, L Kothe, LJ Porter, MS Blois, N Kuhnert, Norbert Fischer, S Rohn, Sascha Rohn, SO Aroyeun, T Esatbeyoglu, Vasilisa Pedan, X Zhou, Y Shibusawaa   +25 more
core   +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

HSCCC isolation and characterization of walnut polyphenols with antioxidative and lipolytic activity

The FASEB Journal, 2013
In order to characterize the structures, biological activity, and mechanisms of action for walnut constituents, the key phytochemicals must be isolated in sufficient quantities. The objective of this research was to establish a method for rapid separation of walnut polyphenols which preserves structural integrity and yields high ...
Mary H Grace, Scott A Neff, Charles Warlick, Elaria Ayoub, Debora Esposito, Mickey Wilson, Slavko Komarnytsky, Mary Ann Lila   +7 more
openaire   +1 more source

Preparative Separation of Phenolic Compounds from Halimodendron halodendron by High-Speed Counter-Current Chromatography

Molecules, 2010
Three phenolic compounds, p-hydroxybenzoic acid (1), isorhamnetin-3-O-β-D-rutinoside (2), and 3,3'-di-O-methylquercetin (5), along with a phenolic mixture were successfully separated from the ethyl acetate crude extract of Halimodendron halodendron by ...
Zhu Yu, Jianguo Han, Ligang Zhou, Qi Wang, Jianglin Zhao, Haifeng Gao, Jihua Wang, Fuyu Yang   +7 more
doaj   +1 more source

Effect of consuming a grape seed supplement with abundant phenolic compounds on the oxidative status of healthy human volunteers [PDF]

, 2017
et al.[Background]: Diverse enzymatic and non-enzymatic antioxidants provide protection against reactive oxygen species in humans and other organisms. The nonenzymatic antioxidants include low molecular mass molecules such as plant-derived phenols.
Grases, Félix, Prodanov, M., Sánchez, Ana M.   +2 more
core   +1 more source

Preparative Separation of Spirobisnaphthalenes from Endophytic Fungus Berkleasmium sp. Dzf12 by High-Speed Counter-Current Chromatography

Molecules, 2013
High-speed counter-current chromatography (HSCCC) was applied for the first time for the preparative separation of spirobisnaphthalenes from a crude extract of the endophytic fungus Berkleasmium sp.
Ligang Zhou, Youliang Peng, Mingan Wang, Yan Mou, Chao Luo, Ruiya Luo, Shiqiong Lu, Tijiang Shan   +7 more
doaj   +1 more source

Separation and Preparation of Sanguinarine and Chelerythrine from Macleaya cordata Root by High Speed Counter-Current Chromatography

Shipin gongye ke-ji, 2022
The aim of this study was to develop a method for the separation and preparation of high purity sanguinarine and chelerythrine by conventional high speed counter-current chromatography.
Changqing JIA, Rui MA, Xicheng QIAN, Dandan WANG, Jiansheng YU   +4 more
doaj   +1 more source

Pedicularis L. Genus. Systematics, botany, phytochemistry, chemotaxonomy, ethnopharmacology, and other [PDF]

, 2019
In this review, the relevance of the plant species belonging to the Pedicularis L. genus has been considered from different points of view. Particular emphasis was given to phytochemistry and ethnopharmacology, since several classes of natural compounds ...
Bianco, Armandodoriano, Ciccòla, Alessandro, De Vita, Daniela, Foddai, Sebastiano, Franceschin, Marco, Frezza, Claudio, Guiso, Marcella, Nicoletti, Marcello, Serafini, Ilaria, Serafini, Mauro, Tomassini, Lamberto, Toniolo, Chiara, Venditti, Alessandro, Ventrone, Antonio   +13 more
core   +1 more source

Isolation and Purification of Oridonin from the Whole Plant of Isodon rubescens by High-Speed Counter-Current Chromatography

Molecules, 2011
Semi-preparative high-speed counter-current chromatography (HSCCC) was successfully used for isolation and purification of oridonin from Isodon rubescens by using a two-phase-solvent system composed of n-hexane-ethyl acetate-methanol-water (2.8:5:2.8:5 ...
ChunYue Yu, Sen Li, Weili Yang, Jing Wei, Jing Wang, Chenghua Han, Yuhua Bai, Fa He   +7 more
doaj   +1 more source

Terminology of separation methods (IUPAC Recommendations 2017) [PDF]

, 2017
This article has an erratum. Doi: 10.1515/pac-2021-1006Recommendations are given concerning the terminology of methods of separation in analytical chemistry, including chromatography, electromigration techniques, and field-flow fractionation and related ...
Fedotov, Petr S., Hibbert, D. Brynn, Maryutina, Tatiana A., Savonina, Elena Yu., Siren, Heli, Smith, Roger M.   +5 more
core   +2 more sources