Assessing a traceability technique in fresh oranges (Citrus sinensis L. Osbeck) with an HS-SPME-GC-MS method. Towards a volatile characterisation of organic oranges.

Autor: Cuevas FJ; Technology, Postharvest and Food Industries Area, Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), Alameda del Obispo Avda, Menéndez Pidal, s/n., 14071 Córdoba, Andalucía, Spain., Moreno-Rojas JM; Technology, Postharvest and Food Industries Area, Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), Alameda del Obispo Avda, Menéndez Pidal, s/n., 14071 Córdoba, Andalucía, Spain. Electronic address: josem.moreno.rojas@juntadeandalucia.es., Ruiz-Moreno MJ; Technology, Postharvest and Food Industries Area, Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), Alameda del Obispo Avda, Menéndez Pidal, s/n., 14071 Córdoba, Andalucía, Spain. Electronic address: mariaj.ruiz.moreno@juntadeandalucia.es.
Jazyk: angličtina
Zdroj: Food chemistry [Food Chem] 2017 Apr 15; Vol. 221, pp. 1930-1938. Date of Electronic Publication: 2016 Nov 30.
DOI: 10.1016/j.foodchem.2016.11.156
Abstrakt: A targeted approach using HS-SPME-GC-MS was performed to compare flavour compounds of 'Navelina' and 'Salustiana' orange cultivars from organic and conventional management systems. Both varieties of conventional oranges showed higher content of ester compounds. On the other hand, higher content of some compounds related with the geranyl-diphosphate pathway (neryl and geranyl acetates) and some terpenoids were found in the organic samples. Furthermore, the partial least square discriminant analysis (PLS-DA) achieved an effective classification for oranges based on the farming system using their volatile profiles (90 and 100% correct classification). To our knowledge, it is the first time that a comparative study dealing with farming systems and orange aroma profile has been performed. These new insights, taking into account local databases, cultivars and advanced analytical tools, highlight the potential of volatile composition for organic orange discrimination.
(Copyright © 2016 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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