The role of micro-organisms in the formation of bitterness in wines

Project Number
WW 10-14

Project title
The role of micro-organisms in the formation of bitterness in wines

Project leader
Augustyn, O P H

Institution
University of Stellenbosch, Faculty of AgriSciences, Institute for Wine Biotechnology

Team members
Du Toit, M
Louw, A
Jolly, N P

Project description
– The identification of potentially bitter compounds by reaction of acrolein with phenols in model wine solutions and red wine.
– The analysis of bitter and non-bitter wines to determine their phenol composition and measure the concentration of potentially bitter compounds in these wines.
– Development of the method according to De Revel and Bertrand (1993) for the determination of aldehydes in wine by GC-MS.

Presentation(s)
Krieling, S J, Pretorius, I S, Lambrechts, M G and Du Toit, M. 2002. An investigation into lactic acid bacteria as a possible cause of bitterness in wine. Paper presented at the 12th Conference of the South African Society for Microbiology. 2-5 April, Bloemfontein, South Africa.

Krieling, S J, Pretorius, I S and Du Toit, M. 2002. An investigation into lactic acid bacteria as a possible cause of bitterness in wine. Paper presented at the 26th National Congress of the South African Society for Enology and Viticulture. 13-15 November, Somerset West, South Africa.

Du Toit, M. 2003. Bitterness in red wine. Paper presented at the 7th Anchor Yeast Technical Symposium: Yeast Biotechnology. Stellenbosch, South Africa.

Krieling, S J, Pretorius, I S and Du Toit, M. 2003. Isolation, identification and characterisation of glycerol-degrading lactic acid bacteria from South African red wines. Paper presented at the 1st FEMS Congress of European Microbiologists. Ljubljana, Slovenia.

Krieling, S J, Pretorius, I S and Du Toit, M. 2004. Wine lactic acid bacteria and their glycerol degradation ability. Paper presented at the 12th Australian Wine Industry Technical Conference. Melbourne, Australia.

FinalReport.pdf

Generic selectors
Exact matches only
Search in title
Search in content