Table 2.
Aroma compounds identified in the Moroccan Lben using SAFE method
| No. | LRIa | Aroma compounds | Concentration (mean ± SD)b | Identificationc |
|---|---|---|---|---|
| 1 | 910 | Acetal | 3443.99 ± 39.79 | LRI, MS,Std |
| 2 | 931 | Ethanol | 12,972.52 ± 193.20 | LRI, MS,Std |
| 3 | 1019 | 2-Butanol | 2611.82 ± 25.56 | LRI, MS,Std |
| 4 | 1095 | 3-Methyl-2-hexanone | 1433.97 ± 20.79 | LRI, MS,tent |
| 5 | 1142 | 2-Pentanol | 623.27 ± 13.90 | LRI, MS,Std |
| 6 | 1160 | 1-Methoxy-2-propanol | 317.69 ± 3.26 | LRI, MS,tent |
| 7 | 1204 | 4-Methyl-2-pentanol | 678.31 ± 2.15 | LRI, MS,Std |
| 8 | 1220 | 2,4-dimethyl-3-pentanol | 266.55 ± 1.84 | LRI, MS,tent |
| 9 | 1264 | 1-Propoxy-2-propanol | 522.18 ± 11.27 | LRI, MS,tent |
| 10 | 1312 | Ethyl lactate | 9189.45 ± 10.69 | LRI, MS,Std |
| 11 | 1320 | Acetoin | 9606.33 ± 47.89 | LRI, MS,Std |
| 12 | 1332 | 2-Heptanol | 422.45 ± 1.26 | LRI, MS,Std |
| 13 | 1388 | 3-Octanol | 466.35 ± 5.55 | LRI, MS,Std |
| 14 | 1395 | 2-Butoxyethanol | 27,660 ± 1.63 | LRI, MS,Std |
| 15 | 1450 | Acetic acid | 41,064.73 ± 331.53 | LRI, MS,Std |
| 16 | 1538 | Propanoic acid | 275.63 ± 3.86 | LRI, MS,Std |
| 17 | 1545 | 2,3-Butandiol | 3732.48 ± 117.67 | LRI, MS,Std |
| 18 | 1570 | Isoamyl lactate | 562.36 ± 8.98 | LRI, MS,Std |
| 19 | 1578 | 1,3-Butanediol | 9570.14 ± 59.86 | LRI, MS,Std |
| 20 | 1592 | 2-Decanol | 330.66 ± 3.38 | LRI, MS,Std |
| 21 | 1628 | Butanoic acid | 2144.52 ± 32.87 | LRI, MS,Std |
| 22 | 1854 | Hexanoic acid | 666.40 ± 18.79 | LRI, MS,Std |
| 23 | 1954 | (E)-3-Hexanoic acid | 277.36 ± 2.65 | LRI, MS,Std |
| 24 | 2047 | Octanoic acid | 384.41 ± 25.60 | LRI, MS,Std |
| Total | 101,829.16 |
aLRI retention indices on DB-WAX column
bConcentration mean values based on three repetitions as µg/L
cIdentification: methods of identification; LRI (linear retention index), MS tent. (Tentatively identified by MS), Std (chemical standard); When only MS or LRI is available for the identification of a compounds, it must be considered as an attempt of identification