TABLE 2.
Odor activity values (OAVs) of the 19 most potent volatile compounds in cut lilies during the postharvest process.
| Group (No.)a | Volatile compound | Odor threshold (OTi) | Odor activity values (OAVs)c |
Odor descriptiond | ||||
| μg/kgb | 0 day | 2 days | 4 days | 6 days | 8 days | |||
| Aldehyde | ||||||||
| 1 | (E)-2-hexenal | 4 | 279.99 | 174.60 | 211.27 | 50.34 | 46.59 | Spicy, clove, carnation, fruity |
| 2 | Hexanal | 75 | 4.55 | 2.02 | 2.88 | 1.38 | 1.63 | Fresh green, fatty, fruity |
| 3 | (E)-non-2-enal | 1.5 | 146.83 | 96.93 | 48.11 | 63.17 | – | Fatty, green, cucumber, citrus |
| 5 | (E)-2-Octenal | 3 | 48.65 | 12.52 | 14.01 | 15.04 | 17.71 | Fresh, cucumber, fatty, green, herbal, banana |
| 8 | Benzeneacetaldehyde | 25 | 2.72 | 1.67 | 1.65 | 2.35 | 2.33 | Green, sweet, rosy, fruity |
| 9 | Non-anal | 2.5 | 25.56 | 30.75 | 30.75 | 25.64 | 28.23 | Rosy, fresh, fatty, |
| Alcohols | ||||||||
| 11 | Linalool | 15 | 57.42 | 59.51 | 78.98 | 21.19 | 13.65 | Citrus, orange, floral, sweet, rose |
| 14 | Geraniol | 20 | 4.54 | 6.50 | 8.20 | 6.14 | 5.67 | Sweet, floral, rosy, fruity, fatty |
| 15 | Eucalyptol | 64 | 1.36 | 2.95 | 2.81 | 0.15 | – | Sweet, fresh, herbal |
| 19 | Geranyl Geraniol | 40 | 0.20 | – | 1.52 | 0.51 | 0.32 | Green, leafy, floral |
| Esters | ||||||||
| 25 | 2-Hydroxybenzoic acid phenylmethyl ester | 82 | 0.68 | 0.96 | 1.66 | 0.44 | 0.14 | Floral, herbal, sweet, balsam |
| 26 | Methyl salicylate | 40 | 5.56 | – | – | – | – | Green, sweet |
| 37 | Benzyl oleate | 22 | – | 1.04 | 3.74 | 0.53 | – | Sweet, waxy, floral |
| Phenolic | ||||||||
| 38 | P-Cresol | 25 | 12.69 | 11.23 | 17.54 | 2.48 | 0.97 | Narcissus, green, floral |
| 39 | 3-Hydroxy-4-methoxytoluene | 13 | 23.79 | 32.11 | 45.76 | 7.77 | 3.48 | Fruity, green, floral |
| 42 | Eugenol | 7.1 | – | 19.31 | 26.20 | 5.80 | – | Sweet, spicy, clove |
| Ketone | ||||||||
| 49 | Geranyl Acetane | 60 | 1.11 | 7.04 | 8.30 | 7.43 | 7.46 | Fresh, green, fruity, waxy, rose |
| 50 | 6-Methyl-5-hepten-2-one | 68 | – | 3.56 | 3.66 | 9.66 | 1.87 | Citrus, green, apple, |
| Others | ||||||||
| 59 | Indole | 23 | – | 3.68 | 8.20 | – | – | Floral |
aThe serial number of the volatile compounds are consistent with Table 1.
bThe odor thresholds of volatile compounds were obtained from the following report (van Gemert, 2003; George, 2010; Pino and Mesa, 2010).
cOAVs means the ratio of its actual concentration of a volatile in cut lilies to its odor threshold; OAVs = Ci/OTi (Ci: the actual concentration of a certain volatile in lily samples; OTi: odor olfaction threshold); “-,” not detected.
d Odor descriptions were adapted from the online database (http://www.thegoodscentscompany.com).