Investigation of the beta-damascenone level in fresh and aged commercial beers.

Chevance, Fabienne;Guyot, Christine;Dupont, Jérôme;Collin, Sonia
(2002) Journal of agricultural and food chemistry — Vol. 50, n° 13, p. 3818-3821 (2002)

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Abstract
This study investigated the increase of beta-damascenone content during aging in a variety of commercial Belgian beers. Quantities detected in fresh beers were generally low (from 6 ng/g to 25 ng/g). After 5 days at 40 degrees C, the level increased (to as much as 210 ng/g) in most of the beers studied, according to the type of beer. Further experiments showed that wort initially contains large quantities of beta-damascenone (450 ng/g), but that degradation of the compound during fermentation accounts for the low concentrations observed in fresh beers. Production during beer aging can be partially explained by acid hydrolysis of glycosides.
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Chevance, F., Guyot, C., Dupont, J., & Collin, S. (2002). Investigation of the beta-damascenone level in fresh and aged commercial beers. Journal of agricultural and food chemistry, 50(13), 3818-3821. https://doi.org/10.1021/jf020085i (Original work published 2002)