| QUEBRANTA |
Odour Threshold* |
Q-C-A-C (n=6) |
Green Must (n=6) |
Industrial(n=8) |
Falca(n=3) |
| mg L-1 |
OAVav |
n (OAV>1) |
OAVav |
n (OAV>1) |
OAVav |
n (OAV>1) |
OAVav |
n (OAV>1) |
| Esters |
|
|
|
|
|
|
|
|
|
| Ethyl butyrate |
0.25 |
0.6 |
0 |
0.8 |
1 |
1.4 |
5 |
1.0 |
2 |
| Ethyl 2-methylbutyrate |
0.1 |
0.5 |
1 |
0.4 |
0 |
0.7 |
2 |
0.2 |
0 |
| Ethyl isovalerate |
0.005 |
20 |
6 |
19 |
6 |
34 |
8 |
8.2 |
3 |
| Ethyl hexanoate |
0.05 |
2.0 |
6 |
2.7 |
6 |
3.1 |
8 |
1.8 |
1 |
| Acetates |
|
|
|
|
|
|
|
|
|
| Methyl acetate |
> 500 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
| Butyl acetate |
10 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
| β-Phenylethyl acetate |
2.5 |
1.1 |
3 |
1.7 |
3 |
0.4 |
0 |
0.9 |
1 |
| Alcohols |
|
|
|
|
|
|
|
|
|
| 1-Butanol |
> 1000 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
| 2-Methyl-1-butanol |
75 |
1.4 |
5 |
1.4 |
5 |
0.9 |
2 |
1.5 |
2 |
| 3-Methyl-1-butanol |
100 |
5.0 |
6 |
5.2 |
6 |
3.3 |
8 |
5.3 |
3 |
| 2,3-Butanediol |
250 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
| β-Phenylethanol |
20 |
1.9 |
5 |
1.7 |
5 |
0.9 |
2 |
1.9 |
3 |
| Terpenes |
|
|
|
|
|
|
|
|
|
| t-Limonene oxide |
5 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
| c-Linalool oxide |
5 |
<0.1 |
0 |
<0.1 |
0 |
0.09 |
0 |
<0.1 |
0 |
| t-Linalool oxide |
5 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
| α-Terpinolene |
2.5 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
| Linalool |
1 |
0.3 |
0 |
0.8 |
2 |
0.8 |
1 |
0.3 |
0 |
| α-Terpineol |
300 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
| β-Citronellol |
1 |
<0.1 |
0 |
0.1 |
0 |
0.1 |
0 |
<0.1 |
0 |
| Nerol |
40 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
| Geraniol |
3 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
| Sesquiterpene |
|
|
|
|
|
|
|
|
|
| Farnesol |
> 1000 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
| Aldehydes |
|
|
|
|
|
|
|
|
|
| Acetaldehyde |
25 |
1.5 |
4 |
3.6 |
6 |
2.3 |
8 |
0.9 |
2 |
| Phenylacetaldehyde |
0.3 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
0.2 |
0 |
| Volatile phenols |
|
|
|
|
|
|
|
|
|
| Guaiacol |
0.1 |
0.12 |
0 |
0.15 |
0 |
<0.1 |
0 |
0.1 |
0 |
| o-Cresol |
0.5 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
| m-Cresol |
0.1 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
| 4-Vinylguaiacol |
2.5 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
| 4-Vinylphenol |
> 100 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
| Norisoprenoide |
|
|
|
|
|
|
|
|
|
| β-Damascenone |
10 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
| Cinnamates |
|
|
|
|
|
|
|
|
|
| Ethyl cinnamate |
> 1 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
| Ethyl dihydrocinnamate |
0.03 |
<0.1 |
0 |
0.2 |
0 |
0.1 |
0 |
0.7 |
1 |
| Lactones |
|
|
|
|
|
|
|
|
|
| γ-Nonalactone |
0.625 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
0.1 |
0 |
| δ-Decalactone |
2 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
<0.1 |
0 |
| Acids |
|
|
|
|
|
|
|
|
|
| Acetic acid |
600 |
0.1 |
0 |
0.2 |
0 |
0.2 |
0 |
0.2 |
0 |
Q-C-A-C: pisco samples of Quebranta variety produced by complete fermentation of must, distilled in alembic, and produced on an artisan scale.
av: average, n (OAV>1): number of samples exceeding the threshold value. *Odour threshold values (in ethanol/water solution 40% (v/v)) were estimated by Cacho et al.
[1]. |
