, Facultad de Ciencias Biológicas, vol.217, pp.837-0146

. Inra, Unité de Recherches sur les Espèces Fruitières (UREF)

, Invitro and invivo flavour relase from six intact and freshcut apple cultivars in relation to their textural and physicochemical parameters

V. J. Ting, Bremer P, Romano A. (1) , Silcock P. (2), vol.1

I. Research, F. E. Centre, and . Mach,

, Austria To gain a better understanding on the genetic basis of apple quality, the volatile organic compound (VOC) profile of six commercial apple cultivars (Fuji, Golden Delicious, Granny Smith, Jonagold, Morgen Dallago and Red Delicious) was determined using Proton Transfer Reaction Quadrupole Mass Spectrometry (PTR-MS). The textural and physicochemical (pH, acidity and water content) properties of the six cultivars were also measured. Cultivar type strongly influenced volatile release: Fuji and Granny Smith apples had the lowest total concentration of VOC (esters, aldehydes, alcohols and terpenes) whereas Red Delicious had the highest. Differences in VOC release enabled cultivars to be grouped based on their genetic/inherited traits such as Jonagold and Golden Delicious. Dynamic in-vivo nose space analysis allowed cultivars to be characterized on mastication time and in-nose concentration based on four VOC measured (esters m/z 43, 61; acetaldehyde m/z 45; ethanol m/z 47) . Firm cultivars (Fuji, Granny Smith) had a longer consumption time and a lower VOC concentration, vol.6020

, Nosespace VOC data on the cultivars, collected with a novel PTR-Time of Flight Mass Spectrometer, PTR-TOF-MS enabled isobaric compounds to be differentiated and

M. J. Smulders, C. F. Koning-boucoiran, D. G. Esselink, W. P. Van-'t-westende, and . Van-de-weg, Bellon F. (2) , Mittmann M

. Wageningen-ur, Plant Breeding

. Affymetrix,

U. K. Affymetrix and . Ltd,

. Rose, As a ROP-GDIs, ROP-GAPs during postharvest storage of fruits in controlled atmosphere (CA -1% O2,and 1°C), and in response to the inhibitor of ethylene perception 1-MCP (1-methylcyclopropene). BLAST sequence similarity searches run on the apple genome database (www.rosaceae.org) using the A. Thaliana proteins as queries allowed the identification of 11 ROP, 14 ROP-GEF, 10 ROP-GAP, and 10 ROP-GDI encoding genes. The expression of these genes, studied by Real-time PCR on peels of apples (cv Granny smith) after 0, 1, 3 and 6 months of storage in CA with or wit hout treatment with 1-MCP

M. Zermiani, Begheldo M. (1) , E. Zonin (1) , Nonis A. (1) , Mercadini M

, MARVIL engineering S.r.l. -Via Nazionale, vol.46

G. Rocabado, L. Bedoya, M. Abad, and P. Bermejo, Natural Product Communications, vol.33, pp.423-436, 2008.

J. Beekwilder, R. D. Hall, and C. H. De-vos, Biofactors, vol.23, pp.197-205, 2005.

A. V. Rao and D. M. Snyder, Journal of Agricultural and Food Chemistry, vol.58, pp.3871-3883, 2010.

S. Cheplick, Y. Kwon, P. Bhowmik, and K. Shetty, J Food Biochemistry, vol.31, pp.656-679, 2007.

L. Zhang, J. Li, S. Hogan, H. Chung, G. E. Welbaum et al., The Role Of MYB Factors In Fruit Color, vol.119, pp.592-599, 2010.

M. Fouche, Denoyes B. (1) , Rothan C. (1) , Vignes M

, Monfort A. (5)

. Inra,

B. Inra,

. Ciref,

, TUM

B. Irta, A. Spain, ;. Project, S. Tartarini, and R. Gregori, Development and use of molecular markers and selection of new varieties with multiple resistance traits G. Cipriani (1), Gianfranceschi L. (3) , Pellegrino S. (4) , Berra L. (4) , Falginella L. (1)

A. Dipartimento-colture, Dipartimento di Bioscienze, viale Fanin, vol.46, issue.3

, Creso -Centro ricerche per la frutticoltura piemontese

E. Fondazione and . Mach,