%0 Journal Article
%T Non-Destructive Assessment of Aroma Volatiles from a Climacteric Near-Isogenic Line of Melon Obtained by Headspace Stir-Bar Sorptive Extraction
%A Juan Pablo Fern¨¢ndez-Trujillo
%A Noelia Dos-Santos
%A Roc¨ªo Mart¨ªnez-Alcaraz
%A In¨¦s Le Bleis
%J Foods
%D 2013
%I MDPI AG
%R 10.3390/foods2030401
%X A climacteric aromatic near-isogenic line (NIL) of melon ( Cucumis melo L.) SC3-5-1 contained an introgression of the non-climacteric Korean cultivar ¡°Shongwan Charmi¡± accession PI 161375 (SC) in the genetic background of the non-climacteric cultivar ¡°Piel de Sapo¡± (PS). The aroma production was monitored during ripening at 21 ¡ãC in intact fruit using headspace sorptive bar extraction (HSSE). Bars were composed of polydimethylsiloxane (PDMS) and aromas were desorbed and analyzed by gas-chromatography mass-spectrometry. The aromatic profile was composed of 70 aromatic compounds plus 21 alkanes with a predominance of esters, particularly acetate (2-methylbutyl acetate, 2-methylpropyl acetate, hexyl acetate, and phenylmethyl acetate). Some compounds were severely affected by postharvest time. The acetate esters (3-methylbutyl acetate, butan-2-yl acetate and phenylmethyl acetate) decreased with ripening and sulfur-derived compounds ( S-methyl butanethioate and S-methyl 3-methylbutanethioate) increased gradually with ripening. A few compounds increased at the senescence phase (propyl ethanoate). Other compounds such as hexadecanoic acid showed a marked decrease after harvest, some decreasing from a relative maximum at harvest (2-methylpropyl hexanoate; n-hexanoic acid; nonanoic acid).
%K climacteric ripening
%K Cucumis melo L.
%K ethylene
%K introgression lines
%K fruit quality
%K HSSE
%K postharvest
%U http://www.mdpi.com/2304-8158/2/3/401