TY - JOUR T1 - Malo-Lactic Fermentation in South African Table Wines JF - American Journal of Enology and Viticulture JO - Am J Enol Vitic. SP - 181 LP - 185 DO - 10.5344/ajev.1976.27.4.181 VL - 27 IS - 4 AU - C. J. van Wyk Y1 - 1976/01/01 UR - http://www.ajevonline.org/content/27/4/181.abstract N2 - A survey of the incidence of malo-lactic fermentation in South African table wines, particularly red table wines, was made for the first time in this country. In young unfinished red table wines the incidence of malo-lactic fermentation was 27.5%, whereas 66.2% of finished and bottled commercial red table wines, without any defects, had undergone malo-lactic fermentation. None of the finished and bottled white and rosé table wines which were analyzed, had undergone malo-lactic fermentation. The incidence of malo-lactic fermentation in wines shortly after alcoholic fermentation depended to a considerable extent on time of racking and SO2 addition. Delayed racking without SO2 addition greatly stimulated malo-lactic fermentation, whereas prompt racking, with SO2 (40-60 ppm), strongly reduced the incidence of malo-lactic fermentation. The incidence of malo-lactic fermentation also depended on storage conditions. Red table wines were more susceptible when stored in wooden instead of stainless-steel or glass containers. In wooden containers, susceptibility increased with increasing storage period. The incidence of malo-lactic fermentation was about equal for award-winning and non-award-winning red table wines. This phenomenon contradicted the general belief that malo-lactic fermentation is detrimental to the quality of red table wines in warm regions. ER -