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Free volatile components of passion fruit puree obtained by flash vacuum-expansion

Brat P., Brillouet J.M., Reynes M., Cogat P.O., Olle D.. 2000. Journal of Agricultural and Food Chemistry, 48. n12 : p. 6210-6214.

DOI: 10.1021/jf000645i

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

Mots-clés : grenadille; jus de fruits; passiflora edulis; composé volatil; pulpe de fruits; traitement; purée de fruit; flash-détente

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