ethyl phenylacetate

900 µg per capsule

Honey, like sweet mead or sherry”

Certified wine flavour standard used to train professional tasters to recognize and scale the intensity of honey character. Honey flavour is a desirable characteristic of top-class sweet white wines. At low concentrations ethyl phenylacetate imparts a pleasant sweet, honey-like note to wine. At higher concentrations it is regarded as a defect. The compound is produced by yeast from phenolic precursors during maturation. Further formation may occur after packaging as a result of non-enzymic reactions.

Food grade | free from sensory impurities | extensively tested | safe to smell and taste.

Flavour cards

Flavour standard information

Technical specification

Assessment
The best way to evaluate honey flavour in wine is as follows. Cover the sample with your hand and swirl the glass to release the aroma. Remove your hand and take a single long sniff. Repeat as necessary.
Amount of flavour per capsule
900 µg per capsule
Threshold
The flavour threshold of ethyl phenylacetate in wine is 150 - 300 µg / l.
Origins
Ethyl phenylacetate is produced by yeast from phenolic precursors during maturation of wine. Concentrations of ethyl phenylacetate may increase after packaging of wine as a result of non-enzymic reactions.
Importance
At low concentrations ethyl phenylacetate imparts a pleasant sweet, ‘honey-like’ note to wine. The presence of this note is associated with high quality white wines, such as Sauternes and Tokaji in vintage years. The compound has been confirmed as a cause of a sweet flavour detect in Italian Aglianico del Vulture reds.
CAS registry number
The CAS registry number of ethyl phenylacetate is 101-97-3.
Other names
  • benzene acetic acid ethyl ester
  • ethyl 2-phenyl ethanoate
  • ethyl 2-phenylacetate
  • ethyl alpha-toluate
  • ethyl benzene acetate
  • ethyl phenyl ethanoate
  • phenyl acetic acid ethyl ester
  • alpha- toluic acid ethyl ester
Remarks
Ethyl phenylacetate is also responsible for the sweet, honey-like note found in top class sweet white wines. This flavour is slow to develop on the palate.
Threshold distribution
Graph
Capsules per pot
10
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