From: Impact of different temperature profiles on simultaneous yeast and bacteria fermentation
Microorganism | Temperature profile | Cell concentration (log units/mL) | ||||
---|---|---|---|---|---|---|
Day 4 | Day 7 | Day 11 | Day 13 | Day 18 | ||
Grape must 1 (G1) | ||||||
 Yeast (live cells) | T1 | 6.9 ± 4.4 | 7.1 ± 5.3 | 6.8 ± 5.4 | 6.2 ± 5.2 | 5.4 ± 4.2 |
 Yeast (dead cells) | T1 | nd | nd | 2.2 ± 2.1 | 2.7 ± 2.2 | 3.8 ± 2.3 |
 Yeast (live cells) | T2 | 7.2 ± 5.2 | 7.6 ± 5.4 | 7.2 ± 5.2 | 6.8 ± 5.4 | 4.8 ± 4.5 |
 Yeast (dead cells) | T2 | nd | nd | 2.4 ± 1.2 | 2.8 ± 2.3 | 3.6 ± 2.4 |
 Yeast (live cells) | T3 | 7.3 ± 5.2 | 7.1 ± 5.2 | 6.9 ± 5.2 | 5.8 ± 5.3 | 4.4 ± 4.2 |
 Yeast (dead cells) | T3 | nr | 2.8 ± 1.4 | 3.2 ± 2.2 | 4.5 ± 3.1 | 5.8 ± 0.4 |
A4 | T1 | 6.0 ± 3.2 | 6.1 ± 4.5 | 6.5 ± 4.1 | 6.5 ± 4.7 | 6.3 ± 4.1 |
A4 | T2 | 6.4 ± 4.1 | 6.5 ± 4.9 | 6.8 ± 5.2 | 6.9 ± 5.3 | 6.8 ± 5.1 |
A4 | T3 | 5.6 ± 3.3 | 5.5 ± 4.2 | 4.9 ± 4.5 | 4.9 ± 3.9 | nd |
K45 H | T1 | 6.1 ± 3.7 | 6.3 ± 4.3 | 6.6 ± 3.9 | 6.6 ± 4.2 | 6.2 ± 4.1 |
K45 H | T2 | 6.4 ± 3.2 | 6.4 ± 4.7 | 6.8 ± 4.1 | 6.5 ± 4.2 | 6.6 ± 3.9 |
K45 H | T3 | 5.9 ± 3.3 | 6.3 ± 3.9 | 6.4 ± 4.2 | 6.5 ± 4.3 | 6.3 ± 4.4 |
Grape must 2 (G2) | ||||||
 Yeast (live cells) | T1 | 7.0 ± 5.2 | 7.2 ± 5.2 | 7.1 ± 5.7 | 6.8 ± 5.3 | 5.8 ± 4.4 |
 Yeast (dead cells) | T1 | nd | nd | 2.5 ± 2.2 | 2.7 ± 2.1 | 3.7 ± 2.9 |
 Yeast (live cells) | T2 | 7.4 ± 4.9 | 7.8 ± 6.2 | 7.7 ± 6.3 | 6.9 ± 5.9 | 6.2 ± 5.3 |
 Yeast (dead cells) | T2 | nd | 3.1 ± 2.2 | 3.3 ± 2.4 | 3.6 ± 2.9 | 3.9 ± 3.1 |
 Yeast (live cells) | T3 | 7.1 ± 5.3 | 7.2 ± 5.7 | 6.0 ± 5.1 | 5.2 ± 4.2 | 4.9 ± 4.5 |
 Yeast (dead cells) | T3 | nd | 2.9 ± 2.4 | 5.3 ± 2.9 | 5.4 ± 3.3 | 5.8 ± 4.6 |
A4 | T1 | 5.5 ± 4.1 | 5.4 ± 4.3 | 5.8 ± 4.2 | 5.7 ± 4.4 | 5.6 ± 4.3 |
A4 | T2 | 6.5 ± 5.2 | 6.6 ± 5.1 | 6.9 ± 5.2 | 7.0 ± 6.1 | 6.9 ± 5.8 |
A4 | T3 | 5.5 ± 4.2 | 5.5 ± 4.3 | nd | nd | nd |
K45 H | T1 | 6.5 ± 5.2 | 6.9 ± 5.3 | 6.9 ± 5.2 | 6.6 ± 5.1 | 6.7 ± 5.4 |
K45 H | T2 | 6.6 ± 5.3 | 6.6 ± 6.1 | 7.0 ± 6.4 | 6.7 ± 5.3 | 6.8 ± 5.1 |
K45 H | T3 | 6.0 ± 5.3 | 6.1 ± 5.3 | 6.6 ± 5.2 | 6.1 ± 5.9 | 6.2 ± 5.2 |