Table 2.
Volatile compounds released upon treating the mango GBV extract (ex situ hydrolysis) and mango juice (in situ hydrolysis) with LpBgl5
| Compound | Concentrations (μg kg) (± standard error of measurement) |
|
|---|---|---|
| Ex situ | In situ | |
| Monoterpenoids | ||
| cis-Linalool-3,6-oxidea | 1.49 (0.08) | nd |
| trans-Linalool-3,6-oxidea | 1.78 (0.32) | nd |
| Linaloola | 1.55 (0.09) | nd |
| Lavandulol | 1.63 (0.04) | nd |
| Epoxylinalool | 1.55 (0.06) | nd |
| trans-Linalool-3,7-oxide | 2.81 (0.02) | nd |
| Myrtenola | 1.75 (0.12) | nd |
| 2,6-Dimethyl-1,7-octadien-3,6-diol | 1.91 (0.28) | nd |
| Isogeraniol | 2.82 (0.07) | nd |
| cis-Verbenol acetate | 1.83 (0.11) | nd |
| p-Mentha-1(7),8(10)-dien-9-ol | 49.34 (1.81)b | 19.2 (2.6) |
| Perillyl alcohola | 3.48 (0.17) | nd |
| cis-Carvyl acetate | 5.41 (0.12) | nd |
| Total concentration of monoterpenoids | 77 | 19 |
| Phenolics | ||
| Benzeneacetaldehydea | nd | 19.5 (4.8) |
| 2-Phenylethanola | 3.55 (0.16) | 25.3 (3.1) |
| p-Vinylguaiacol | 2.45 (0.03) | 23.9 (8.7) |
| Eugenola | 113.35 (5.29) | 424.2 (5.8) |
| Isoeugenol | 50.70 (1.62)b | nd |
| Methoxyeugenol | 145.75 (7.87)b | 229.8 (0.7) |
| Total concentration of phenolics | 315 | 722 |
| Norisoprenoids | ||
| 3-Oxo-α-ionol | 2.08 (0.04) | nd |
| Total concentration of norisoprenoids | 2 | 0 |
| Total GBV concentration | 394 | 741 |
nd not detected
aIdentities of these compounds were confirmed using external standards
bThese compounds were also detected in empty plasmid controls and the indicated value represents the difference between the concentrations observed in LpBgl5 treated and empty plasmid control samples