Brede, J.A. and Acree, T.E. 1990.
Isolation of a b-Damascenone precursor from apple, Malus domestica Borkh. cv Empire.
Abstr. IFT Annual Meeting (Abs no. 316):
An isolation method was developed to obtain b-damascenone precursor(s) from apples. Precursor(s) were separated from a crude apple extract using C18 reversed-phase and aminopropyl normal-phase column chromatography. The b-damascenone precursor activity in column fractions collected was detected using a quantative gas chromatographic sniffing method called charm analysis. B-damascenone occurs at low levels in apple products, estimated at 100-200 ng/g. However, b-damascenone has a particularly high aroma impact due to its characteristic floral odor quality and its low odor threshold.