Table 5. Change of fusel oils in storege vessel during maturation period of Actinidia arguta brandy
(unit: mg/L)
Maturation period (month) | Isobutanol | Isoamyl alcohol | a/b ratio2) |
Oak | Stainless | Glass | Oak | Stainless | Glass | Oak | Stainless | Glass |
0 | 647.41±0.001) | 647.41±0.00 | 647.41±0.00 | 1,294.31±0.01 | 1,294.31±0.01 | 1,294.31±0.01 | 2.00±0.02 | 2.00±0.02 | 2.00±0.02 |
3 | 625.41±0.04 | 616.68±0.03 | 595.74±0.01****3) | 1,236.33±0.08 | 1,211.28±0.05** | 1,170.62±0.02**** | 1.98±0.02 | 1.96±0.02 | 1.96±0.01 |
7 | 715.96±0.00**** | 612.02±0.00 | 619.64±0.00** | 1,421.44±0.00* | 1,210.88±0.00** | 1,223.09±0.00*** | 1.99±0.02 | 1.98±0.00 | 1.97±0.01 |
11 | 1,023.66±0.04**** | 630.10±0.00 | 633.92±0.01 | 2,065.25±0.09**** | 1,238.62±0.01 | 1,242.27±0.01** | 2.02±0.01 | 1.97±0.02 | 1.96±0.01 |
17 | 1,944.21±0.04 | 619.54±0.00 | 630.63±0.01* | 4,125.36±0.02**** | 1,215.49±0.00* | 1,228.08±0.01*** | 2.12±0.04 | 1.96±0.01 | 1.95±0.02 |
Each value is expressed as mean±SD (n=3).
Ratio = Isoamyl alcohol/Isobutanol.
*p<0.05, **p<0.01, ***p<0.001, ****p<0.0001.