Table 1. Changes in free sugar and organic acid contents of apple ciders fermented by Saccharomyces cerevisiae Fermivin (Fermivin), mixed culture of S. cerevisiae Fermivin and Pichia anomala JK04 (Fermivin+JK04), mixed culture of S. cerevisiae Fermivin and Issatchenkia orientalis KMBL5774 (Fermivin+KMBL5774) before and after freeze concentration
Strains | Free sugar contents (g/L) | Organic acid contents (g/L) |
Sucrose | Glucose | Fructose | Citric acid | Tartaric acid | Malic acid | Lactic acid | Acetic acid |
Fermivin | Before | 0.20±0.061) | 0.03±0.02 | 0.10±0.06 | 0.07±0.01 | 0.09±0.01 | 0.61±0.02 | 0.01±0.01 | 0.01±0.01 |
After | 0.04±0.03 | 0.01±0.01 | 0.11±0.09 | 0.09±0.01 | 0.12±0.03 | 0.96±0.04 | 0.02±0.01 | 0.01±0.00 |
p value2) | 0.014480* | 0.196261 | 0.880541 | 0.070484 | 0.175693 | 0.000171*** | 0.287864 | 1 |
Fermivin+JK04 | Before | 2.02±0.21 | 3.14±0.17 | 38.11±0.89 | 0.05±0.01 | 0.07±0.01 | 0.59±0.05 | 0.01±0.01 | 0.21±0.05 |
After | 10.04±2.33 | 7.03±1.21 | 84.38±6.81 | 0.14±0.01 | 0.16±0.03 | 0.96±0.03 | 0.01±0.01 | 0.49±0.04 |
p value | 0.017551* | 0.031350* | 0.007264** | 0.000385*** | 0.007876** | 0.000389*** | 1 | 0.001629** |
Fermivin+KMBL5774 | Before | 0.05±0.01 | 0.02±0.01 | 0.04±0.01 | 0.06±0.01 | 0.09±0.02 | 0.44±0.02 | 0.02±0.01 | 0.00±0.00 |
After | 0.27±0.04 | 0.05±0.01 | 0.04±0.01 | 0.08±0.01 | 0.11±0.03 | 0.93±0.02 | 0.02±0.01 | 0.01±0.01 |
p value | 0.000762*** | 0.021312* | 1 | 0.070484 | 0.391076 | 0.000007*** | 1 | 0.225403 |
1)The values were expressed as mean±SD (n=3).
2)p values were considered statistically significant using a Student’s t-test (*, p<0.05; **, p<0.01; ***, p<0.001).