Article summary by Karien O’KennedyWinetech This study had three aims: To investigate the presence of intraregional variation in volatile thiol concentrations; to determine the relationship between amino acid concentrations in juice and thiol precursor concentrations,...
Article summary by Karien O’KennedyWinetech The aim of the study was to determine the influence of different sulphur sources on the consumption of thiol precursors and the formation of volatile thiols. EXPERIMENTAL LAYOUT All experiments were conducted...
Dr. Carien Coetzee Basic Wine 18 February 2020 In the previous blog post, the effect of mechanical harvesting on the volatile thiol content of the resulting wines was discussed and compared to the thiol content of wines made from hand-harvested grapes. Mechanical...
Dr. Carien Coetzee Basic Wine 12 February 2020 Hand-picked grapes are in general considered to deliver higher quality wines probably due to the advantage of specific cluster selection in the vineyard. Poor quality and rotten grapes can be intentionally excluded by the...
A research summary Dr. Carien Coetzee Basic Wine 20 August 2019 In a previous blog post, we reported on a study where researchers investigated the effect of copper and glutathione addition, prior to bottling, on the evolution of key aroma compounds such as 3MH (fruity...
