Results 1 to 10 of about 1,078 (179)

Rapid Separation of Asiatic Acid, Quercetin, and Kaempferol from Traditional Chinese Medicine Centella asiatica (L.) Urban Using HSCCC-Semi-Prep-HPLC and the Assessment of Their Potential as Fatty Acid Synthase Inhibitors [PDF]

open access: yesInternational Journal of Analytical Chemistry, 2023
The main objective of this study was to rapidly separate asiatic acid (AA), quercetin (QCN), and kaempferol (KPL) from Centella asiatica (L.) Urban using high-speed counter-current chromatography (HSCCC) in tandem with the UV detector of semipreparative ...
Binbin Xia   +9 more
doaj   +3 more sources

Preparative Isolation and Purification of Five Flavonoid Glycosides and One Benzophenone Galloyl Glycoside from Psidium guajava by High-Speed Counter-Current Chromatography (HSCCC) [PDF]

open access: yesMolecules, 2013
Psidium guajava leaves have a diverse phytochemical composition including flavonoids, phenolics, meroterpenoids and triterpenes, responsible for the biological activities of the medicinal parts.
Yindi Zhu   +6 more
doaj   +5 more sources

An Efficient Method for the Preparative Isolation and Purification of Flavonoid Glycosides and Caffeoylquinic Acid Derivatives from Leaves of Lonicera japonica Thunb. Using High Speed Counter-Current Chromatography (HSCCC) and Prep-HPLC Guided by DPPH-HPLC Experiments [PDF]

open access: yesMolecules, 2017
In this work, the n-butanol extract from leaves of Lonicera japonica Thunb. (L. japonica) was reacted with DPPH and subjected to a HPLC analysis for the guided screening antioxidants (DPPH-HPLC experiments). Then, nine antioxidants, including flavonoid
Daijie Wang   +7 more
doaj   +5 more sources

Rapid Screening and Preparative Isolation of Antioxidants from Alpinia officinarum Hance Using HSCCC Coupled with DPPH-HPLC Assay and Evaluation of Their Antioxidant Activities [PDF]

open access: yesJournal of Analytical Methods in Chemistry, 2018
An efficient method using high-speed counter-current chromatography (HSCCC) coupled with DPPH-HPLC assay has been developed for rapid screening and preparative isolation of antioxidants from ethyl acetate fraction of Alpinia officinarum Hance.
Lei Fang   +4 more
doaj   +4 more sources

A novel and high-efficient method for the preparation of heat-stable antifungal factor from Lysobacter enzymogenes by high-speed counter-current chromatography [PDF]

open access: yesFrontiers in Microbiology, 2023
Heat-stable antifungal factor (HSAF) produced by the biocontrol bacterium Lysobacter enzymogenes shows considerable antifungal activity and has broad application potential in the agricultural and medical fields.
Weibo Sun   +5 more
doaj   +5 more sources

HPLC-DAD-MS and Antioxidant Profile of Fractions from Amontillado Sherry Wine Obtained Using High-Speed Counter-Current Chromatography [PDF]

open access: yesFoods, 2021
In the present work, the polyphenolic profile of a complex matrix such as Amontillado sherry has been processed by means of high-speed counter-current chromatography (HSCCC) and characterized by HPLC-DAD-MS.
Mónica Schwarz   +7 more
doaj   +3 more sources

Isolation and Identification of Anthocyanin Component in the Fruits of Acanthopanax Sessiliflorus (Rupr. & Maxim.) Seem. by Means of High Speed Counter Current Chromatography and Evaluation of Its Antioxidant Activity [PDF]

open access: yesMolecules, 2020
Acanthopanax sessiliflorus (Rupr. & Maxim.) Seem. (Araliaceae) is one of the most abundant species of genus Acanthopanax. The fruits of A. sessiliflorus are used in traditional medical protocols as an analgesic, tonic, antidiabetic, antihypertensive ...
Liang Chen   +6 more
doaj   +3 more sources

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

open access: yesQuímica 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   +7 more
doaj   +3 more sources

Profiling of sesquiterpenoid fractions from <i>Artemisia annua</i> L. and testing their <i>in vitro</i> anti-SARS-CoV-2 activity. [PDF]

open access: yesBiomol Biomed
The current state of research on the anti‑SARS‑CoV‑2 potential of artemisinin‑related compounds has identified arteannuin B as a potent inhibitor of the nCoV‑2019BetaCov/Wuhan/WiV04/2019 and BetaCov/Italy/CDG1/2020 strains of the virus.
Gušić I   +11 more
europepmc   +3 more sources

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

open access: yesShipin 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   +4 more
doaj   +1 more source

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