Selected bacteria which facilitate direct malo-lactic fermentation in red wine, without the need for a reactivation phase.
The inoculation should be in the order of 3 x 106 cfu/mL. This dose rate should encourage a rapid completion of malo-lactic fermentation. It is recommended that addition takes place immediately after the alcoholic fermentation, so that the inoculum can benefit from favourable temperatures.
For a good conversion of malic acid to lactic acid, the following conditions are ideal :
- reducing sugar < 2 g/L
- pH > 3.20
- Total SO2 < 40 mg/L
- Free SO2 nil
- Alcohol < 14% vol.