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USE OF VOLATILE METABOLITE PROFILES TO DISTINGUISH THREE MONILINIA SPECIES

S.M. Mang, R. Racioppi, I. Camele, G.L. Rana, M. D’Auria

Abstract


Analyses of volatile organic compounds (VOCs) produced by three Monilinia species (M. laxa, M. frutigena and M. fructicola) grown on potato dextrose agar (PDA) were done by head space solid phase micro extraction combined with gas chromatography/mass spectrometry (HS-SPME-GS/MS). A total of 14 compounds of different chemical structure were identified, the most frequent of which were ethanol, dodecane and alpha- Muurolene. Specific VOCs were identified, which allowed the discrimination of the three Monilinia species. If coupled with the use of the electronic nose and upon validation under commercial conditions, the results of this study may have potential applications in postharvest for detecting and identifying diseases of stone and pome fruits, in relatively early stages of their development.

Keywords


brown rot; HS-SPME-GC/MS; postharvest; VOCs

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DOI: http://dx.doi.org/10.4454/JPP.V97I1.005

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EDIZIONI ETS, Pisa, Italy