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Table 1.

Must: Total acidity, tartaric, malic and gluconic acid from the must. Treatments: 1 – control treatment, with pre-fermentative maceration of2 days; 2 – sulfitic maceration of 2 days; 3 – traditional fermentative maceration for 5 days.

Treatments Total Tartaric Malic Gluconic
acidity acid acid acid
1 9.40 a* 9.23 a 9.46 a 1.36 b
2 5.10 b 2.26 b 5.70 b 5.13 a
3 8.40 a 7.40 a 8.00 a 0.20 c

*The letters correspond to the statistical difference, through the Tukey test at 5% probability.

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