Table 2 Chemical composition of distillates obtained from the fermentation of thick juice worts

Methanol

8.1 ± 0.8^a

7.7 ± 0.7^a

9.3 ± 0.9^a

7.7 ± 0.8^a

9.3 ± 0.9^a

8.1 ± 0.8^a

9.3 ± 0.9^a

9.1 ± 0.9^a

Acetaldehyde

763.4 ± 4.2^a

1626.0 ± 4.1^b

2226.0 ± 6.5^c

2214.5 ± 6.3^c

3214.5 ± 7.5^d

3869.8 ± 8.8^e

3971.8 ± 9.2^f

4172.9 ± 9.8^g

Methyl acetate

8.2 ± 0.8^a

9.2 ± 0.8^a

8.6 ± 0.8^a

9.3 ± 0.8^a

7.9 ± 0.8^a

9.0 ± 0.8^a

8.3 ± 0.8^a

9.2 ± 0.8^a

Ethyl acetate

266.3 ± 2.5^b

248.7 ± 2.5^a

284.5 ± 2.8^d

270.8 ± 2.6^c

248.7 ± 2.5^a

246.8 ± 2.5^a

243.7 ± 2.5^a

285.0 ± 2.8^d

Isoamyl acetate

0.0^a

0.0^a

0.0^a

1.9 ± 0.2^b

2.6 ± 0.2^c

4.2 ± 0.3^d

7.1 ± 0.5^e

8.7 ± 0.5^f

Ethyl butyrate

33.5 ± 0.9^c

45.3 ± 1.4^d

60.1 ± 1.5^f

52.1 ± 1.4^e

18.0 ± 0.6^a

18.6 ± 0.6^a

21.9 ± 0.8^b

22.6 ± 0.8^b

n-propanol

155.9 ± 2.2^bc

177.2 ± 2.8^e

187.1 ± 2.8^f

158.9 ± 1.6^c

152.9 ± 1.6^ab

150.3 ± 1.5^a

206.1 ± 2.7^g

165.9 ± 1.5^d

2-methyl-1-propanol

314.3 ± 3.2^b

307.2 ± 2.8^a

368.9 ± 3.5^d

381.1 ± 3.5^e

357.8 ± 3.5^c

402.2 ± 3.8^f

355.7 ± 3.5^c

355.3 ± 3.5^c

n-butanol

7.4 ± 0.5^a

7.8 ± 0.5^ab

7.5 ± 0.5^a

7.5 ± 0.5^a

6.8 ± 0.5^a

7.6 ± 0.5^a

8.9 ± 0.7^b

8.1 ± 0.6^b

2-methyl-1-butanol

236.3 ± 2.5^a

249.4 ± 2.5^b

299.7 ± 2.9^e

269.6 ± 2.7^c

272.1 ± 2.7^c

283.2 ± 2.7^d

284.5 ± 2.7^d

306.7 ± 3.2^f

3-methyl-1-butanol

650.7 ± 3.5^a

667.7 ± 3.8^b

805.8 ± 4.1^d

818.2 ± 4.2^e

719.4 ± 3.8^c

906.8 ± 4.2^g

969.0 ± 4.3^h

879.7 ± 4.1^f