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Semi-Preparative Separation of 10 Caffeoylquinic Acid Derivatives Using High Speed Counter-Current Chromatogaphy Combined with Semi-Preparative HPLC from the Roots of Burdock (Arctium lappa L.) [PDF]

open access: yesMolecules, 2018
Burdock roots are healthy dietary supplements and a kind of famous traditional Chinese medicine, which contains large amounts of caffeoylquinic acid derivatives.
Zhenjia Zheng   +5 more
doaj   +3 more sources

Preparative separation of minor saponins from Panax notoginseng leaves using biotransformation, macroporous resins, and preparative high-performance liquid chromatography [PDF]

open access: yesJournal of Ginseng Research, 2019
Background: Ginsenosides with less sugar moieties may exhibit the better adsorptive capacity and more pharmacological activities. Methods: An efficient method for the separation of four minor saponins, including gypenoside XVII, notoginsenoside Fe ...
Fang Liu   +6 more
doaj   +3 more sources

Response Surface Optimized Extraction of 1-Deoxynojirimycin from Mulberry Leaves (Morus alba L.) and Preparative Separation with Resins [PDF]

open access: yesMolecules, 2014
In the present study, the extraction technology and preparative separation of 1-deoxynojirimycin from mulberry leaves were systematically investigated. Four extraction parameters (ethanol concentration, extraction temperature, extraction time and ratio ...
Teng Wang   +3 more
doaj   +3 more sources

Preparative Separation of Procyanidins from Cocoa Polyphenolic Extract: Comparative Study of Different Fractionation Techniques [PDF]

open access: yesMolecules, 2020
To provide further insight into the antioxidant potential of procyanidins (PCs) from cocoa beans, PC extract was fractionated by several methodologies, including solid phase extraction, Sephadex LH-20 gel permeation, and preparative HPLC using C18 and ...
Said Toro-Uribe   +4 more
doaj   +2 more sources

A Strategy for Preparative Separation of 10 Lignans from Justicia procumbens L. by High-Speed Counter-Current Chromatography [PDF]

open access: yesMolecules, 2017
Ten compounds, including three lignan glycosides and seven lignans, were purified from Justicia procumbens L. in 8 h using an efficient strategy based on high-speed counter-current chromatography (HSCCC).
Jiaojiao Jiang   +7 more
doaj   +2 more sources

Preparative Separation and Purification of Trichothecene Mycotoxins from the Marine Fungus Fusarium sp. LS68 by High-Speed Countercurrent Chromatography in Stepwise Elution Mode [PDF]

open access: yesMarine Drugs, 2018
The contamination of foods and animal feeds with trichothecene mycotoxins is a growing concern for human and animal health. As such, large quantities of pure trichothecene mycotoxins are necessary for food safety monitoring and toxicological research.
Yong Liu   +5 more
doaj   +2 more sources

Preparative Separation of Main Ustilaginoidins from Rice False Smut Balls by High-Speed Counter-Current Chromatography [PDF]

open access: yesToxins, 2016
Ustilaginoidins are bis-naphtho-γ-pyrone mycotoxins isolated from the rice false smut balls (FSBs) infected by the pathogen Villosiclava virens in rice spikelets on panicles.
Weibo Sun   +8 more
doaj   +2 more sources

Preparative Separation of Monoterpenoid Indole Alkaloid Epimers from Ervatamia yunnanensis Tsiang by pH-Zone-Refining Counter-Current Chromatography Combined with Preparative High-Performance Liquid Chromatography [PDF]

open access: yesMolecules, 2019
An effective method was developed for the preparative separation and purification of monoterpenoid indole alkaloid epimers from Ervatamia yunnanensis Tsiang using a combination of pH-zone-refining counter-current chromatography and preparative high ...
Jie Zhou   +4 more
doaj   +2 more sources

Preparative Separation of Phenolic Compounds from Chimonanthus praecox Flowers by High-Speed Counter-Current Chromatography Using a Stepwise Elution Mode [PDF]

open access: yesMolecules, 2016
High-speed counter-current chromatography (HSCCC) has been successfully used for the separation of eight compounds from Chimonanthus praecox flowers. Firstly, the crude extract of Chimonanthus praecox flowers was dissolved in a two-phase solvent system ...
Huaizhi Li   +6 more
doaj   +2 more sources

Development of a Preparative Method for Obtaining an Enantiomerically Pure Substance of Salbutamol by Supercritical Fluid Chromatography

open access: yesРазработка и регистрация лекарственных средств, 2022
Introduction. An increasing number of studies conducted in various countries in the field of biopharmacy convincingly show the differences in the physiological effects on the human body of stereoisomers of pharmaceutical substances. As a rule, one of the
V. N. Tsarev   +2 more
doaj   +1 more source

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