Results 121 to 130 of about 9,566 (219)

Új fumonizin mikotoxinok tisztítása, szerkezet-meghatározása és toxikológiai vizsgálata. = Purification, structural elucidation and toxicological investigations of novel potentially hazardous fumonisin mycotoxins. [PDF]

open access: yes, 2012
A fumonizinek a Fusarium gomba fajok által termelt kiemelkedően toxikus mikotoxinok melyek leggyakrabban kukoricatermékekben fordulnak elő, ezért egyre fontosabbak az élelmiszerbiztonság szempontjából.
Szekeres, András
core  

Fast Counter Current Chromatography of -Butanolic Fraction from (Asteraceae)

open access: yesNatural Product Communications, 2009
Phenolic derivatives such as quinones, acid-phenols and flavonoids were successfully isolated from a n-butanolic fraction of Senecio giganteus Desf.
Nadjet Mezache   +5 more
doaj   +1 more source

Optimizing Chromatographic Separation with Redosing: Effects on Separation Efficiency of a Model System in Centrifugal Partition Chromatography

open access: yesSeparations
This study investigates and optimizes chromatographic separation in a Centrifugal Partition Chromatograph. Therefore, a model system is separated in a single-disc rotor.
Felix Buthmann   +3 more
doaj   +1 more source

Measurement of Partition Coefficient Using Centrifugal Partition Chromatography

open access: yes, 1995
Measurement of partition coefficients in various solvent systems has been developed using flow-through centrifugal partition chromatography (CPC). The present paper details the experimental design, and shows that this method is able to measure compounds in a log P range of ca. -3.2 to 3.2 in a precise, accurate and rapid way.
Tsai, Ruey-Shiuan   +2 more
openaire   +2 more sources

Optimized Centrifugal Partition Chromatography (CPC) Protocol for Isolation of Urease Inhibitors: Magnoflorine and Berberine from Berberis vulgaris Extracts

open access: yesSeparations
In recent years, an increasing interest in phytotherapy has been observed. Parallel to the research on the total extracts of plant material, numerous studies on the activity of single molecules derived from plants are being conducted to address their ...
Sylwia Nakonieczna   +6 more
doaj   +1 more source

Kinetics of Xylose Oligomers Decomposition [PDF]

open access: yes, 2012
Hemicellose-derived oligomers are key components in hemicellulose depolymerization into the five-carbon carbohydrate xylose, a key operation in the production of cellulosic biofuels.
McDaniel, Christopher
core   +1 more source

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