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PTR‐TOF‐MS analysis of volatile compounds in olive fruits
Author(s) -
Masi Elisa,
Romani Annalisa,
Pandolfi Camilla,
Heimler Daniela,
Mancuso Stefano
Publication year - 2015
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.6837
Subject(s) - ripening , chemistry , high resolution , mass spectrometry , fragmentation (computing) , food science , horticulture , chromatography , biology , ecology , remote sensing , geology
BACKGROUND Volatile compounds of Cellina di Nardò and Ogliarola Barese, two typical Italian olive varieties, have been characterised at different ripening stages. Proton transfer reaction–time‐of‐flight–mass spectrometry ( PTR‐TOF‐MS ) was used for the first time on these fruits with the aim of characterising the volatile profile and, in the case of Ogliarola, the changes which may occur during the maturation process. RESULTS PTR‐TOF‐MS does not involve any sample pre‐treatment, and allows high‐resolution measurements, large spectra and small fragmentation of the volatiles. Therefore it allows both compound identification and data statistical treatments. In the present work, about 40 compounds that contribute to the discrimination between samples of the two varieties have been identified. CONCLUSIONS Three groups of compounds were identified: (1) compounds that are typical of mature fruits of Ogliarola, (2) compounds that tend to decrease during the change from green to mature fruits, and (3) compounds that increase during the maturation process. © 2014 Society of Chemical Industry