Table 3: Trapped compounds from the aqueous fractions obtained under different vacuum and temperature conditions and of natural guava juice

Peak TR (min) Components Area (%) IK*
Natural juice 1 2 3 4 5 6 7
1 3.08 Ethane, 1,1-dietoxi 3.37 — 0.69 0.07 6.16 0.05 — 0.67 717
2 3.63 2 - Hexanone 0.96 2.04 2.11 1.60 3.44 2.73 3.85 2.21 761
3 3.79 n-Hexanal 31.66 11.41 37.68 39.78 11.15 35.60 26.70 20.89 771
4 3.90 2-Hexanol 1.53 2.26 2.71 2.02 4.29 2.80 4.44 2.82 777
5 4.63 2-Hexenal, (E)- 4.77 5.96 12.33 13.93 5.29 9.65 8.03 5.87 827
6 4.89 3-Hexen-1-ol, (Z)- 0.30 2.11 1.26 2.80 4.72 0.95 0.70 2.83 836
7 5.21 1-Hexanol 0.77 3.40 2.21 3.93 7.06 1.88 1.93 4.16 850
8 6.71 2(5H)-Furanone, 5-ethyl- 3.40 0.48 4.02 2.77 0.33 4.32 1.15 1.18 984
9 8.82 NI 1.04 0.39 0.53 0.46 0.15 0.53 0.26 0.26 —
10 9.85 Eucalyptol 4.24 5.61 2.87 2.85 4.06 3.61 2.12 3.76 1020
11 9.96 NI 1.35 0.19 1.26 0.91 0.18 1.53 0.41 0.43 —
12 10.25 1,3,6-Octatriene, 3,7-dimethyl-, (E)- 11.18 0.28 0.15 0.18 0.21 0.14 0.20 0.28 1038
13 10.58 1,3,7-Octatriene, 3,7-dimethyl- 0.85 0.30 0.13 0.11 0.18 0.13 0.20 0.24 1046
14 11.41 Bicyclo [2.2.1] heptan-2-one, 1,3,3-trimethyl- 0.71 1.98 0.61 0.53 0.72 0.65 0.65 1.20 1067
15 13.13 Bicyclo [2.2.1] heptan-2one, 1,7,7-trimethyl-, (1S)- 0.55 1.75 0.50 0.45 0.58 0.61 0.48 0.90 1146
16 13.65 Benzaldehyde, 4-ethyl- 0.64 1.68 1.12 1.00 1.86 1.35 1.91 1.89 1169
17 16.75 1,4-Cyclohexadiene-1-methanol, 4-(1-methylethyl)- 2.75 7.70 4.75 3.74 8.43 5.54 8.55 7.12 1261
18 17.02 4-(1-Hidroxyethyl)benzaldehyde 1.48 3.91 2.62 1.98 4.30 2.85 4.71 3.61 1291
19 17.12 3,4-Dimethylacetophenone 2.86 8.86 4.95 3.99 8.79 6.17 8.84 7.43 —
20 17.72 2,5-Dimethylacetophenone 1.69 5.09 2.89 2.32 5.00 3.52 5.24 4.27 —
21 21.78 NI 0.37 0.80 0.23 0.23 0.35 0.25 0.26 0.51 —
22 23.04 β-Caryophyllene 6.09 0.69 0.15 0.15 0.35 0.25 0.38 0.45 1396
23 23.35 NI 0.35 1.12 0.67 0.52 0.96 0.78 1.25 0.86 —
24 24.04 α-Caryophyllene 0.59 0.50 0.26 0.21 0.43 0.41 0.46 0.24 1449
25 24.99 Naphthalene, decahydro-1,6-bis(methylene)-4-(1-methylethyl)-, (4α,4aα,8aα)- 0.32 0.23 — 0.07 0.06 — 0.10 0.18 1457
26 25.31 Naphthalene, 1,2,3,4,4a,5,6,8a-octahydro-4a,8-dimethyl-2-(1-methylethenyl)-, [2r-(2α,4aα,8aβ)]- 1.80 0.22 0.07 0.07 — 0.07 0.07 — 1467
27 25.80 Naphthalene, 1,2,3,5,6,7,8,8a-octahydro-1,8a-dimethyl-7-(1-methylethenyl)-, [1s-(1α,7α,8aα)]- 2.02 0.21 0.06 0.06 0.09 0.07 0.06 0.16 1486
28 27.54 3-Heptadecen-5-yne, (Z)- 0.72 1.93 0.49 0.41 0.26 0.13 0.08 0.70 —
— — Total (%) 88.36 71.10 87.32 87.14 79.40 86.57 83.03 75.12 —

NI is non identified; * is the Kovat Index in capillary collum BPI (30m × 0.25 mm × 0.25 μm).