de Villiers A - Search Results

1

Chemometric analysis of chromatographic fingerprints shows potential of Cyclopia maculata (Andrews) Kies for production of standardized extracts with high xanthone content.

Schulze AE, de Beer D, de Villiers A, Manley M, Joubert E. Schulze AE, et al. Among authors: de beer d, de villiers a. J Agric Food Chem. 2014 Oct 29;62(43):10542-51. doi: 10.1021/jf5028735. Epub 2014 Oct 20. J Agric Food Chem. 2014. PMID: 25329526

2

Stir bar sorptive extraction-liquid desorption applied to the analysis of hop-derived bitter acids in beer by micellar electrokinetic chromatography.

De Villiers A, Vanhoenacker G, Lynen F, Sandra P. De Villiers A, et al. Electrophoresis. 2004 Feb;25(4-5):664-9. doi: 10.1002/elps.200305758. Electrophoresis. 2004. PMID: 14981694

3

Stir bar sorptive extraction combined with GC-MS analysis and chemometric methods for the classification of South African Wines according to the volatile composition.

Tredoux A, de Villiers A, Májek P, Lynen F, Crouch A, Sandra P. Tredoux A, et al. Among authors: de villiers a. J Agric Food Chem. 2008 Jun 25;56(12):4286-96. doi: 10.1021/jf0734673. Epub 2008 May 21. J Agric Food Chem. 2008. PMID: 18491916

4

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. de Villiers A, et al. J Chromatogr A. 2009 Apr 10;1216(15):3270-9. doi: 10.1016/j.chroma.2009.02.038. Epub 2009 Feb 21. J Chromatogr A. 2009. PMID: 19264316

5

Off-line comprehensive 2-dimensional hydrophilic interaction x reversed phase liquid chromatography analysis of procyanidins.

Kalili KM, de Villiers A. Kalili KM, et al. Among authors: de villiers a. J Chromatogr A. 2009 Aug 28;1216(35):6274-84. doi: 10.1016/j.chroma.2009.06.071. Epub 2009 Jul 1. J Chromatogr A. 2009. PMID: 19631941

6

Survey of 3-alkyl-2-methoxypyrazine content of South African Sauvignon blanc wines using a novel LC-APCI-MS/MS method.

Alberts P, Stander MA, Paul SO, de Villiers A. Alberts P, et al. Among authors: de villiers a. J Agric Food Chem. 2009 Oct 28;57(20):9347-55. doi: 10.1021/jf9026475. J Agric Food Chem. 2009. PMID: 19807097

7

Off-line comprehensive two-dimensional hydrophilic interaction x reversed phase liquid chromatographic analysis of green tea phenolics.

Kalili KM, de Villiers A. Kalili KM, et al. Among authors: de villiers a. J Sep Sci. 2010 Mar;33(6-7):853-63. doi: 10.1002/jssc.200900673. J Sep Sci. 2010. PMID: 20127915

8

Recent developments in the HPLC separation of phenolic compounds.

Kalili KM, de Villiers A. Kalili KM, et al. Among authors: de villiers a. J Sep Sci. 2011 Apr;34(8):854-76. doi: 10.1002/jssc.201000811. Epub 2011 Feb 17. J Sep Sci. 2011. PMID: 21328694 Review.

9

High-efficiency high performance liquid chromatographic analysis of red wine anthocyanins.

de Villiers A, Cabooter D, Lynen F, Desmet G, Sandra P. de Villiers A, et al. J Chromatogr A. 2011 Jul 22;1218(29):4660-70. doi: 10.1016/j.chroma.2011.05.042. Epub 2011 May 18. J Chromatogr A. 2011. PMID: 21665209

10

Investigation of the volatile composition of pinotage wines fermented with different malolactic starter cultures using comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC×GC-TOF-MS).

Vestner J, Malherbe S, Du Toit M, Nieuwoudt HH, Mostafa A, Górecki T, Tredoux AG, de Villiers A. Vestner J, et al. Among authors: de villiers a. J Agric Food Chem. 2011 Dec 28;59(24):12732-44. doi: 10.1021/jf2028208. Epub 2011 Nov 30. J Agric Food Chem. 2011. PMID: 22023396

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