Results 91 to 100 of about 1,452 (205)

Advanced modelling and visualisation of liquid-liquid separations of complex sample components, with variable phase distribution and mode of operation

open access: yes, 2013
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This research is about liquid-liquid chromatography modelling.
De Folter, Jozefus Johannes Martinus
core  

Estudo químico de espécies brasileiras e colombianas do gênero Passiflora [PDF]

open access: yes, 2013
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Farmácia, Florianópolis, 2013.O gênero Passiflora é o mais importante da família Passifloraceae e suas espécies são conhecidas ...
Costa, Geison Modesti
core  

J. Liq. Chromatogr. Relat. Technol.

open access: yes, 2008
A fast and simple solvent system screening method was established based on average polarity, which was much easier to find a suitable solvent system for high speed countercurrent chromatography separation.
Ouyang, Fan   +5 more
core   +1 more source

Preparative Separation of Alkaloids from Picrasma quassioides (D. Don) Benn. by Conventional and pH-Zone-Refining Countercurrent Chromatography

open access: yesMolecules, 2014
Two high-speed countercurrent chromatography (HSCCC) modes were compared by separation of major alkaloids from crude extract of Picrasma quassioides. The conventional HSCCC separation was performed with a two-phase solvent system composed of petroleum ...
Qinghai Zhang   +5 more
doaj   +1 more source

Preparative Isolation of Antimycobacterial Shoreic Acid from Cabralea canjerana by High Speed Countercurrent Chromatography

open access: yes, 2008
High speed countercurrent chromatography (HSCCC) was used to isolate the dammarane type triterpene shoreic acid from the dichloromethane extract of leaves of Cabralea canjerana, which showed activity against Mycobacterium tuberculosis.
Silva, Pedro Eduardo Almeida da   +7 more
core  

Isolation and Evaluation of Erinacine A Contents in Mycelia of Hericium erinaceus Strains

open access: yesFoods
Hericium erinaceus has long been favored for its remarkable nutritional and health-promoting benefits, and erinacine A is the key component responsible for the neuroprotective properties of H. erinaceus.
Mengchen Liu   +6 more
doaj   +1 more source

J. Chromatogr. A

open access: yes, 2007
Three kinds of polyphenols of Salvia miltiorrhiza Bunge, 3,4-dihydroxyphenyllactic acid, salvianolic acid B and protocatechualdehyde, were separated and purified in one step with solvent system n-hexane-ethyl acetate-methanol-acetic acid-water (1:6:1.5:1.
Wang, Xiaolei   +3 more
core   +1 more source

Characterization of Compounds with Tumor–Cell Proliferation Inhibition Activity from Mushroom (Phellinus baumii) Mycelia Produced by Solid-State Fermentation

open access: yesMolecules, 2017
The inhibition of tumor-cell proliferationbyan organicsolvent extract from the solid-state fermentation of Phellinus baumii mycelia inoculated in rice medium was investigated in vitro.
Henan Zhang   +6 more
doaj   +1 more source

Enantioseparation using a counter-current bioreactor

open access: yes, 2011
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The potential of countercurrent chromatography (CCC) as a small footprint bioreactor/separator for manufacture of enantiopure chiral molecules was explored,
Grudzien, Lukasz
core  

Semisynthetic Preparation and Isolation of Dimeric Procyanidins B1–B8 from Roasted Hazelnut Skins (Corylus avellana L.) on a Large Scale Using Countercurrent Chromatography

open access: yes, 2016
Dimeric procyanidins B1–B8 were produced via semisynthesis from a polymeric proanthocyanidin fraction of hazelnut skins (Corylus avellana L.). This polymeric fraction was found to consist mostly of (+)-catechin and (−)-epicatechin as upper units ...
Andreas Juadjur (1775152)   +3 more
core   +1 more source

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