Table 1.
Production of SO 2 , H 2 S and acetaldehyde of by the parental strains
| SO 2 (mg/l) | H 2 S (color of the H 2 S detection strip) | Acetaldehyde (mg/l) | |
|---|---|---|---|
| JN10 | 50,40±3,05 | High (black) | 29,00±1,41 |
| JN17 | 9,00±1,22 | Low (white) | 9,25±0,35 |
Acetaldehyde was determined in conditions previously defined as optimal for SO2 production analysis. H2S production was determined in a synthetic nitrogen-deficient must, at 28°C.
Values are the mean of five biological replicates for SO2 production and two biological replicates for acetaldehyde production. H2S production was estimated visually once.