SciELO - Scientific Electronic Library Online

 
vol.31 issue2Influence of thermal treatment of wood on the aroma of a sugar cane spirit (cachaça) model-solutionLipid and protein oxidation in the internal part of italian type salami containing basil essential oil (Ocimum basilicum L.) author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Food Science and Technology (Campinas)

Print version ISSN 0101-2061

Abstract

MACORIS, Mariana Serrão; JANZANTTI, Natália Soares; GARRUTI, Deborah dos Santos  and  MONTEIRO, Magali. Volatile compounds from organic and conventional passion fruit (Passiflora edulis F. Flavicarpa) pulp. Ciênc. Tecnol. Aliment. [online]. 2011, vol.31, n.2, pp. 430-435. ISSN 0101-2061.  http://dx.doi.org/10.1590/S0101-20612011000200023.

The volatile compositions from organic and conventional passion fruit pulps produced in Brazil were investigated. The pulps were also physicochemically characterized. The volatile compounds from the headspace of the passion fruit pulp were stripped to a Porapak Q trap for 2 hours; they were eluted with 300 µL of dichloromethane, separated by gas chromatography/flame ionisation detection and identified through gas chromatography/mass spectrometry. Both pulps conformed to the requirements of the Brazilian legislation, indicating they were suitable to be industrialized and consumed. A total of 77 compounds were detected in the headspace of the passion fruit pulps - 60 of which were identified, comprising 91% of the total chromatogram area. The major compounds were the following: ethyl butanoate, 52% and 57% of the total relative area of the chromatogram for the organic and conventional passion fruit pulps, respectively; ethyl hexanoate, 22% and 9%, respectively; and hexyl butanoate, 2% and 5%, respectively. The aroma of the organic passion fruit pulp is mainly related to the following volatile compounds: ethyl hexanoate, methyl hexanoate, β-myrcene and D-limonene. The conventional passion fruit pulp presented methyl butanoate, butyl acetate, hexanal, 1-butanol, butyl butanoate, trans-3-hexenyl acetate, cis-3-hexen-1-ol, butyl hexanoate, hexyl butanoate, 3-hexenyl butanoate and 3-hexenyl hexanoate as the main volatile compounds for aroma.

Keywords : organic passion fruit; aroma; flavor chemistry; fruit pulp; gas chromatography [mass spectrometry].

        · abstract in Portuguese     · text in English     · pdf in English