Table 1.
Aroma profile of Argentine I. paraguariensis and European I. aquifolium and I. meserveae.
| Compound | RI Exp. 1 | RI Lit. 2 | I. paraguariensis | I. aquifolium | I. meserveae | ||||
|---|---|---|---|---|---|---|---|---|---|
| Alaska | Ferox Argentea | Rubricaulis Aurea | Blue Angel | Blue Boy | Golden Girl | ||||
| Concentration (µg g−1) d.w | |||||||||
| Hexanal | 802 | 800 | 13.80 3a | - 4 | - | - | 1.52 c | 1.18 c | 2.45 b |
| 2-Methyl-2-pentenal | 838 | 837 | 11.77 | - | - | - | - | - | - |
| (E)-2-Hexenal | 860 | 854 | 1.77 a | 0.68 a | - | - | 12.28 b | 20.97 d | 14.61 c |
| 3-Hexen-1-ol | 864 | 856 | - | 0.14 a | - | - | 11.85 d | 8.52 c | 6.34 b |
| α-Pinene | 938 | 937 | 0.23 a | 1.98 d | 2.77 e | 3.94 f | 1.32 c | 0.62 b | 0.51 ab |
| 6-Methyl-5-heptene-2-one | 960 | 956 | 25.73 | - | - | - | - | - | - |
| α-Phellandrene | 989 | 986 | - | 4.71 d | 3.68 c | 5.44 d | 2.39 b | 1.05 a | 1.16 a |
| (E,E)-2,4-Heptadienal | 1012 | 1012 | 14.83 | - | - | - | - | - | - |
| p-Cymene | 1027 | 1025 | 2.65 a | 74.40 f | 58.21 e | 82.62 g | 32.75 d | 20.20 b | 22.51 c |
| (E,E)-3,5-Octadien-2-one | 1074 | 1068 | 22.82 | - | - | - | - | - | - |
| Total | 93.60 | 81.91 | 64.66 | 92.00 | 62.11 | 52.54 | 47.58 | ||
1 Experimental retention indices calculated against n-alkanes. 2 Retention indices according to the NIST20 database. 3 Values are mean; values followed by the same letter within a row are not significantly different (p > 0.05, Tukey’s test). 4 not detected.