Purple passion fruits were processed by the flash vacuum-expansion process.
Volatile components were analyzed in purees from steam-heated fruits, stea
m-heated then vacuum-expanded fruits and their aromatic liquors, and fruit
rind, in comparison with a reference single-strength juice. After steam hea
ting, the puree was enriched in esters arising from the rind. Steam-heated
then vacuum-expanded fruits yielded a puree impoverished in volatiles due t
o evaporation of approximate to 10% of water. These volatile compounds were
mostly recovered in aromatic liquors.