Table 4 Physicochemical properties of Yakju made from cold adaptive yeast of liquid formulation cells using SCY297 and not liquid formulation cells using SCY297
Storage period (week) | Protective agent (5%) | pH | Soluble solid (°Brix) | Titratable acidity (%, v/v) | Amino acidity (mL) | Alcohol (%, v/v) |
Control (SCY297) | 3.49±0.011)c2) | 12.30±0.10e | 0.53 0.01d | 3.03±0.06f | 19.30±0.10b |
4 | Untreated | 3.44±0.00c | 14.43±0.01d | 0.55±0.14cd | 3.01±0.01f | 19.63±0.06a |
Skim milk | 3.45±0.01c | 14.30±0.10d | 0.53±0.01d | 3.16±0.01f | 19.27±0.06b |
α-Lactose | 3.47±0.01c | 14.30±0.10d | 0.56±0.01bcd | 3.42±0.02f | 19.37±0.06b |
Trehalose | 3.45±0.01c | 14.47±0.12d | 0.57±0.02bcd | 3.20±0.01f | 18.53±0.06c |
10 | Untreated | 4.38±0.04b | 15.67±0.12bc | 0.61±0.07ab | 5.39±0.54e | 18.36±0.15d |
Skim milk | 4.46±0.01b | 15.93±0.12ab | 0.60±0.05abc | 6.52±0.49cd | 17.43±0.15g |
α-Lactose | 4.75±0.56b | 15.90±0.10abc | 0.61±0.04ab | 6.79±0.63bcd | 18.56±0.06c |
Trehalose | 4.82±0.52b | 15.73±0.15abc | 0.53±0.04d | 6.91±0.52bc | 18.03±0.15e |
15 | Untreated | 4.86±0.35ab | 15.73±0.31abc | 0.65±0.02a | 6.07±0.23de | 17.78±0.06f |
Skim milk | 4.44±0.20b | 15.67±0.23bc | 0.58±0.01bcd | 7.05±0.78bc | 16.97±0.06h |
α-Lactose | 5.35±0.61a | 15.60±0.20c | 0.60±0.02abc | 7.60±0.56ab | 18.23±0.03d |
Trehalose | 4.68±0.03b | 16.00±0.20a | 0.56±0.01bcd | 8.13±0.63a | 17.43±0.06g |
Data are means SD (n=3).
a-hMeans in a row by different superscripts are significantly different at 5% significance level by Duncan’s multiple range test.