SUNScholar
⇒
General Collections
⇒
SUNScholar - Work in Progress
⇒
Browsing by Author

Author

Now showing items 1-5 of 5

Fast method development of rooibos tea phenolics using a variable column length strategy

Cabooter D. Broeckhoven K. Kalili K.M. de Villiers A. Desmet G. (2011)

The development of a method for the separation of standard compounds of the 15 main phenolics found in rooibos tea is presented. The separation of these compounds in a single HPLC analysis is particularly challenging due ...
High-efficiency high performance liquid chromatographic analysis of red wine anthocyanins

De Villiers A. Cabooter D. Lynen F. Desmet G. Sandra P. (2011)

The analysis of anthocyanins in natural products is of significant relevance in recent times due to the recognised health benefits associated with their consumption. In red grapes and wines in particular, anthocyanins are ...
High performance liquid chromatography analysis of wine anthocyanins revisited: Effect of particle size and temperature

de Villiers A. Cabooter D. Lynen F. Desmet G. Sandra P. (2009)

The complex anthocyanin fraction of red wines poses a demanding analytical challenge. We have found that anthocyanins are characterised by extremely low optimal chromatographic velocities, and as a consequence generic HPLC ...
Investigation of the validity of the kinetic plot method to predict the performance of coupled column systems operated at very high pressures under different thermal conditions

Cabooter D. Lestremau F. de Villiers A. Broeckhoven K. Lynen F. Sandra P. Desmet G. (2009)

The present study investigates how strong the kinetic plot method is influenced by the changes in plate height, retention factor and apparent column permeability that arise under conditions of very high pressure. More ...
Kinetic optimisation of the reversed phase liquid chromatographic separation of proanthocyanidins on sub-2μm and superficially porous phases

Kalili K.M. Cabooter D. Desmet G. de Villiers A. (2012)

Phenolic compounds, and proanthocyanidins in particular, are important natural molecules which are of significant importance due to their sensory and biological activities. The analysis of proanthocyanidins in natural ...