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--- passiflora_edulis [2021/03/07 09:22] – andreas
+++ passiflora_edulis [2021/03/11 09:36] (aktuell) – andreas
@@ Zeile 13: / Zeile 13: @@
 The strikingly fresh-fruity ethyl (Z)‐4,7‐octadienoate (pineapple-like) and (Z)‐3,5‐hexadienyl butyrate (tropical fruity) are important aroma constituents of the purple passionfruit. \\
 [Winter, Max, et al. "(Z)‐4,7‐Octadiensäure‐äthylester und (Z)‐Buttersäure‐3,5‐hexadienylester, zwei neue Aromastoffe der roten Passionsfrucht." Helvetica Chimica Acta 62.1 (1979): 135-139]
+The headspace of the juice from the hybrid passion fruit (purple skinned, smaller than the yellow one) showed by far higher ester content then the yellow and the red one. Main components of the headspace were esters (more than 30 different found) like ethyl butanoate, ethyl hexanoate, hexyl butanoate, and hexyl hexanoate. Minor components were e.g. hexanol, benzaldehyde, ethyl 4,7‐octadienoate, ocimene, edulan I, and β-ionone. \\
+[Chen, Chu Chin, et al. „Headspace components of passion fruit juice.“ Journal of Agricultural and Food Chemistry 30.6 (1982): 1211-1215]
 Enantioselective synthesis starting form (E)-2-hexenol showed that (+)- and (-)-(Z)-2-methyl-4-propyl-1,3-oxathiane exhibit different organoleptic properties. Whereas the (+)-enantiomer had a estery-camphoraceous-flowery type odor, (-)-(Z)-2-methyl-4-propyl-1,3-oxathiane smelled powerful sulfury, tropical-fruit-like (th 4ppm). \\