Table 2 Main volatile compounds of liquor samples with different treatments.

From: Effect of high pressure treatment and short term storage on changes in main volatile compounds of Chinese liquor

Number

Compounds

Young

400-15

400-30

Young(S2)

400-15(S2)

400-30(S2)

One year

1

Acetaldehyde

237.81 ± 11.87a

212.50 ± 12.72b

217.75 ± 10.66b

178.89 ± 6.97c

181.42 ± 12.49c

176.52 ± 9.66c

152.99 ± 12.67d

2

Methanol

79.79 ± 3.46a

65.10 ± 1.89c

70.42 ± 2.12b

64.37 ± 2.39c

64.78 ± 2.50c

64.28 ± 2.69c

46.75 ± 2.06d

3

Ethyl acetate

1741.48 ± 87.52a

1418.78 ± 85.08b

1450.86 ± 76.20b

1472.49 ± 69.85b

1524.67 ± 88.60b

1454.40 ± 59.43b

694.23 ± 36.17c

4

Acetal

519.72 ± 30.60a

390.36 ± 25.19b

378.95 ± 28.88b

402.45 ± 25.46b

416.49 ± 24.61b

401.96 ± 30.19b

275.31 ± 22.76c

5

2-Butanol

29.97 ± 1.35a

22.65 ± 1.04b

23.21 ± 1.76b

18.30 ± 1.88c

18.41 ± 1.96c

18.36 ± 2.47c

20.54 ± 2.54c

6

1-Propanol

338.84 ± 16.54a

291.73 ± 13.38b

296.90 ± 20.40b

248.92 ± 9.67c

250.50 ± 15.25c

250.29 ± 16.79c

261.24 ± 20.35c

7

Ethyl butyrate

ND

ND

ND

ND

ND

ND

4.28 ± 0.53

8

Isobutanol

637.67 ± 39.72a

545.46 ± 20.09b

553.07 ± 38.16b

477.81 ± 18.13c

480.14 ± 25.44c

479.77 ± 28.13c

593.72 ± 29.01a

9

n-Butanol

13.84 ± 1.73a

11.37 ± 1.26a

11.60 ± 1.19a

9.84 ± 1.64a

10.13 ± 1.57a

10.07 ± 1.98a

12.53 ± 1.79a

10

Isoamylol

800.53 ± 41.79a

697.90 ± 44.61b

710.83 ± 45.37b

594.50 ± 38.17c

597.56 ± 37.39c

598.68 ± 40.96c

793.02 ± 38.19a

11

Ethyl hexanoate

ND

ND

ND

ND

ND

ND

52.82 ± 4.69

12

Ethyl lactate

446.38 ± 30.40a

423.64 ± 20.71a

451.06 ± 28.87a

302.33 ± 17.52b

306.78 ± 14.99b

309.78 ± 12.05b

465.10 ± 31.16a

13

Ethyl oenanthate

ND

ND

ND

ND

ND

ND

14.43 ± 1.62

14

Acetic acid

1194.00 ± 91.82a

1095.88 ± 86.71a

1158.02 ± 79.46a

592.01 ± 41.40c

599.30 ± 40.80c

605.75 ± 38.26c

701.73 ± 40.19b

15

Furfural

19.17 ± 1.09b

16.65 ± 1.88b

18.09 ± 1.62b

8.82 ± 1.03c

9.21 ± 0.96c

9.36 ± 1.41c

36.05 ± 2.56a

16

Propionic acid

7.83 ± 0.57a

7.11 ± 0.69a

7.79 ± 0.77a

4.71 ± 0.62b

2.35 ± 0.55c

2.48 ± 0.41c

7.61 ± 0.41a

17

Isobutyric acid

14.95 ± 1.92a

14.17 ± 2.04a

15.09 ± 2.27a

13.27 ± 2.41a

11.46 ± 2.07a

11.69 ± 1.89a

9.18 ± 0.60b

18

Butanoic acid

20.87 ± 1.56b

18.20 ± 1.71b

20.01 ± 2.07b

9.12 ± 0.79c

7.84 ± 0.86c

8.11 ± 0.91c

29.69 ± 2.01a

19

Isovaleric acid

3.62 ± 0.26a

3.28 ± 0.30a

3.73 ± 0.29a

2.55 ± 0.21b

1.02 ± 0.16c

1.07 ± 0.15c

2.87 ± 0.18b

20

Phenylethanol

5.90 ± 0.44b

4.43 ± 0.56b

5.48 ± 0.69b

ND

ND

ND

11.59 ± 0.68a

21

Ethyl palmitate

ND

ND

ND

ND

ND

ND

13.09 ± 0.95

  1. All values are expressed as means (mg/L) ± standard deviation (SD).
  2. Different letters indicate significant differences (p < 0.05).
  3. ND: Not detected.
  4. (S2): Samples stored for two months.
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