Fernández-Trujillo Juan Pablo, Dos-Santos Noelia, Martínez-Alcaraz Rocío, Le Bleis Inés
Department of Agricultural and Food Engineering, Technical University of Cartagena (UPCT), Paseo Alfonso XIII, 48, ETSIA & Institute of Plant Biotechnology, E-30203 Cartagena (Murcia), Spain.
Foods. 2013 Aug 28;2(3):401-414. doi: 10.3390/foods2030401.
A climacteric aromatic near-isogenic line (NIL) of melon ( 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 °C 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 (-methyl butanethioate and -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; -hexanoic acid; nonanoic acid).
甜瓜（L.）的一个更年期芳香近等基因系（NIL）SC3-5-1在非更年期品种“Piel de Sapo”（PS）的遗传背景中含有非更年期韩国品种“Shongwan Charmi”种质PI 161375（SC）的渐渗。在21°C下，使用顶空吸附棒萃取（HSSE）对完整果实成熟过程中的香气产生进行监测。吸附棒由聚二甲基硅氧烷（PDMS）组成，香气被解吸并通过气相色谱-质谱联用仪进行分析。香气谱由70种芳香化合物加21种烷烃组成，以酯类为主，尤其是乙酸酯（乙酸2-甲基丁酯、乙酸2-甲基丙酯、乙酸己酯和乙酸苄酯）。一些化合物受采后时间的影响很大。乙酸酯（乙酸3-甲基丁酯、乙酸丁-2-酯和乙酸苄酯）随着成熟而减少，而硫衍生化合物（-甲基丁硫酯和-甲基3-甲基丁硫酯）随着成熟而逐渐增加。一些化合物在衰老阶段增加（乙酸丙酯）。其他化合物如十六烷酸在收获后显著减少，一些从收获时的相对最大值下降（己酸2-甲基丙酯；-己酸；壬酸）。
