Table 1 Concentrations of volatile compounds identified in black bean (Phaseolus vulgaris L.) extracts with DRP–LLE

Aldehydes

 Hexanal

1069

1084

MS², KI³, Co⁴

1.012 ± 0.031^a,A

0.868 ± 0.027^a,B

0.214 ± 0.007^a,B

3.241 ± 0.098^b,A

0.927 ± 0.028^a,B

0.323 ± 0.010^a,C

3.877 ± 0.371^b,A

3.239 ± 0.098^b,A

0.829 ± 0.026^b,B

 Nonanal

1408

1395

MS, KI, Co

0.279 ± 0.008^a,A

0.207 ± 0.004^a,B

0.223 ± 0.006^a,B

0.376 ± 0.012^b,A

0.355 ± 0.011^b,A

0.206 ± 0.006^a,B

0.437 ± 0.053^c,A

0.467 ± 0.015^c,A

0.320 ± 0.009^b,B

Total aldehydes

1.291 ± 0.039

1.075 ± 0.030

0.437 ± 0.013

3.617 ± 0.110

1.283 ± 0.039

0.529 ± 0.016

3.475 ± 0.424

3.706 ± 0.113

1.149 ± 0.035

Alcohols

 2-Methyl-1-butanol

1194

1208

MS, KI, Co

1.939 ± 0.060^a,A

2.238 ± 0.069^a,B

1.456 ± 0.044^b,B

5.659 ± 0.172^b,A

1.767 ± 0.053^b,B

1.437 ± 0.044^a,C

2.327 ± 0.081^c,A

2.318 ± 0.070^a,A

2.217 ± 0.064^b,A

 1-Hexanol

1365

1360

MS, KI, Co

0.876 ± 0.027^a,A

0.752 ± 0.021^a,B

0.514 ± 0.016^a,C

1.300 ± 0.039^b,A

1.087 ± 0.033^b,B

0.542 ± 0.016^a,C

0.777 ± 0.004^c,AB

0.805 ± 0.024^c,A

0.720 ± 0.021^b,C

 1-Pentanol

1230

1212

MS, KI, Co

6.741 ± 0.205^a,A

6.412 ± 0.198^a,B

4.256 ± 0.131^a,C

9.139 ± 0.279^b,A

6.688 ± 0.206^ab,B

4.210 ± 0.127^a,C

5.114 ± 0.050^c,A

5.264 ± 0.165^c,A

5.790 ± 0.179^b,B

 3-Octanol

1404

1394

MS, KI, Co

0.579 ± 0.018^a,A

0.410 ± 0.012^a,B

0.227 ± 0.007^a,C

0.619 ± 0.019^b,A

0.464 ± 0.014^b,B

0.209 ± 0.006^a,C

0.394 ± 0.015^c,A

0.400 ± 0.012^a,A

0.371 ± 0.010^b,B

 1-Octen-3-ol

1460

1445

MS, KI, Co

10.146 ± 0.309^a,A

9.189 ± 0.280^a,B

11.611 ± 0.354^a,C

12.023 ± 0.367^b,A

10.616 ± 0.326^b,B

8.151 ± 0.252^b,C

8.057 ± 0.409^c,A

8.249 ± 0.250^c,A

8.523 ± 0.262^b,A

 Benzyl alcohol

1900

1880

MS, KI, Co

1.210 ± 0.037^a,A

0.903 ± 0.029^a,B

0.855 ± 0.026^a,B

1.238 ± 0.038^a,A

1.725 ± 0.054^b,B

0.518 ± 0.016^b,C

0.612 ± 0.024^b,A

0.621 ± 0.019^c,A

0.770 ± 0.023^c,B

 Phenethyl-alcohol

1935

1929

MS, KI, Co

0.268 ± 0.009^a,A

0.367 ± 0.012^a,B

0.207 ± 0.007^a,C

0.354 ± 0.011^b,A

0.584 ± 0.015^b,B

0.117 ± 0.004^b,C

0.248 ± 0.008^c,A

0.251 ± 0.007^c,A

0.074 ± 0.002^c,B

Total alcohols

21.758 ± 0.665

20.271 ± 0.620

19.125 ± 0.585

30.332 ± 0.925

22.931 ± 0.701

15.183 ± 0.464

71.529 ± 0.530

17.906 ± 0.548

18.465 ± 0.561

Ketones

 γ-Hexalactone

1702

1724

MS, KI, Co

0.095 ± 0.003^a,A

0.138 ± 0.005^a,B

0.033 ± 0.001^a,C

0.138 ± 0.004^b,A

0.212 ± 0.005^b,B

0.020 ± 0.001^b,C

0.059 ± 0.007^c,A

0.063 ± 0.002^c,A

N.D

Total ketones

MS, KI, Co

0.095 ± 0.003

0.138 ± 0.005

0.033 ± 0.001

0.138 ± 0.004

0.212 ± 0.005

0.020 ± 0.001

0.059 ± 0.007

0.063 ± 0.002

N.D

Total volatiles

23.144 ± 0.707^a,A

21.483 ± 0.656^a,B

19.595 ± 0.599^a,C

34.087 ± 1.039^b,A

24.425 ± 0.746^b,B

15.733 ± 0.481^b,C

21.063 ± 0.923^c,A

21.675 ± 0.663^a,A

19.614 ± 0.596^a,B