(E)-1-(2,3,6-trimethylphenyl)buta-1,3-diene: a potent grape-derived odorant in wine |
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| Authors: | Janusz Agnieszka Capone Dimitra L Puglisi Carolyn J Perkins Michael V Elsey Gordon M Sefton Mark A |
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| Institution: | School of Chemistry, Physics and Earth Sciences, Flinders University of South Australia, PO Box 2100, Adelaide, South Australia 5001, Australia. |
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| Abstract: | (E)-1-(2,3,6-Trimethylphenyl)buta-1,3-diene (TPB) was identified as a potent odorant in acid hydrolysates of crude glycoconjugate fractions isolated from grapes and grape vine leaves. TPB was also identified in a Semillon wine, using gas chromatography/mass spectrometry, by co-injection with an authentic sample. TPB had an aroma detection threshold of 40 ng/L in a neutral white wine and the concentration of TPB in four out of five white wines analyzed ranged from 50 to 210 ng/L. |
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