Volatiles of ripe fruit Prunus salicina L. cv. Friar as determined by gas chromatography-mass spectrophotometry as developed during cold storage

Abstract

ABSTRACTAroma components from the ripe fruit of Prunus salicina L. cv. Friar and their changes during cold storage were analyzed in this study. Fifty-one volatiles were identified by dichloromethane direct extraction method using gas chromatography–mass spectrophotometry (GC-MS). Their total content was 50.4 μg/g, including alcohols, aldehydes, esters, lactones, acids, ketones, phenols, and small amounts of hydrocarbons and heterocyclic compounds. Nine compounds were determined as the would-be impact odorants of Prunus salicina L. cv. Friar, accounting for 24.7% of contents of total aroma components. According to the size of the aroma indices, their contribution to the aroma was list: (E)-2-hexenal, γ-dodecalactone, hexyl acetate, butane-2,3-diol, 3-methyl-2-butene-1-ol, hexanal, butyl acetate, 1-butanol, and 2-methyl-1-butanol. Compared with the ripe fruit of Prunus salicina L. cv. Friar, types and relative contents of the would-be impact odorants declined during cold storage at 0°C and the shelf-life period at 20°C after harvest. This result showed that low temperature inhibited the synthesis of aroma components to a certain extent. The lack of acetates and lactones, which contributed to fruit aroma largely, was the main reason for fading of fruit flavor after cold storage.