Results 41 to 50 of about 746 (163)

Recombinant expression and functional characterisation of regiospecific flavonoid glucosyltransferases from Hieracium pilosella L. [PDF]

open access: yes, 2009
Five glucosyltransferases were cloned by RT-PCR amplification using total RNA from Hieracium pilosella L. (Asteraceae) inflorescences as template. Expression was accomplished in Escherichia coli, and three of the HIS-tagged enzymes, UGT90A7, UGT95A1, and
Martens, S.   +4 more
core   +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

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   +1 more source

Importance of Downstream Processing of Natural Astaxanthin for Pharmaceutical Application

open access: yesFrontiers in Chemical Engineering, 2021
Astaxanthin (ASX) is a xanthophyll pigment considered as a nutraceutical with high antioxidant activity. Several clinical trials have shown the multiple health benefits of this molecule; therefore, it has various pharmaceutical industry applications ...
Lucio Rodríguez-Sifuentes   +3 more
doaj   +1 more source

HIGH SPEED CENTRIFUGAL COUNTERCURRENT CHROMATOGRAPHY (HSCCC) ISOLATION AND IDENTIFICATION BY LC-MSn ANALYSIS OF THE POLAR PHENOLICS FROM VASCONCELLEA QUERCIFOLIA

open access: yesJournal of the Chilean Chemical Society, 2013
High speed centrifugal countercurrent chromatography (HSCCC) was successfully applied to preparative isolation of the main polar phenolics from the Peruvian Caricaceae Vasconcellea quercifolia A. St.-Hil. High-performance liquid chromatography with diode array (HPLC-DAD) and electrospray ionisation mass spectrometric detection (ESI-MS) was used to ...
QUISPE, CRISTINA   +5 more
openaire   +2 more sources

Separation of volatile metabolites from the leaf-derived essential oil of piper mollicomum kunth (piperaceae) by high-speed countercurrent chromatography [PDF]

open access: yes, 2018
A técnica de cromatografia em contracorrente de alta velocidade foi aplicada ao isolamento de compostos em óleo essencial derivado das folhas da espécie Piper mollicomum.
Kaplan, Maria Auxiliadora C.   +3 more
core   +1 more source

Isolation and Purification of Sesquiterpene Lactones from Ixeris sonchifolia (Bunge) Hance by High-Speed Counter- Current Chromatography and Semi-Preparative High Performance Liquid Chromatography [PDF]

open access: yes, 2015
Purpose: To isolate and purify sesquiterpene lactones from Ixeris sonchifolia (Bunge) Hance by highspeed counter-current chromatography (HSCCC).Methods: I.
Cai, W   +6 more
core   +2 more sources

Magnetic Nanomaterials in Chinese Medicine Chemical Composition Analysis and Drug Metabolism and Its Industry Prospect and Development Path Research

open access: yesJournal of Chemistry, Volume 2020, Issue 1, 2020., 2020
The paramagnetism and superparamagnetism of magnetic nanomaterials are very important for in vivo applications. The magnetic particles with paramagnetism or superparamagnetism can redistribute the magnetic particles after the magnetic field is withdrawn, which is widely used for the separation and purification of biomolecules.
Tengfei Ma, Peng Liu, Tifeng Jiao
wiley   +1 more source

Characterization of MK8(H2) from Rhodococcus sp. B7740 and Its Potential Antiglycation Capacity Measurements

open access: yesMarine Drugs, 2018
Menaquinone (MK) has an important role in human metabolism as an essential vitamin (VK2), which is mainly produced through the fermentation of microorganisms. MK8(H2) was identified to be the main menaquinone from Rhodococcus sp.
Yashu Chen   +7 more
doaj   +1 more source

Pharmacological Evaluation of Artemisia cina Crude CO2 Subcritical Extract after the Removal of Santonin by Means of High Speed Countercurrent Chromatography

open access: yesMolecules, 2020
Artemisia species are highly important due to their economic significance as medicines, fodder and food. Artemisia cina is an endemic species to Kazakhstan. In folk medicine, water extract of A.
Zuriyadda Sakipova   +6 more
doaj   +1 more source

Separation and Purification of Four Stilbenes from Vitis vinifera L. cv. Cabernet Sauvignon Roots Through High-speed Counter-current Chromatography [PDF]

open access: yes, 2016
A method for preparative separation and purification of trans-resveratrol, δ-viniferin, ε-viniferin and trans-vitisin B from the roots of Vitis vinifera L. cv. Cabernet Sauvignon was successfully established and is reported on in this paper.
Li, Jingming   +3 more
core   +2 more sources

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