单 位：
石油天然气精细化工教育部(自治区)重点实验室,新疆大学化学化工学院;石油天然气精细化工教育部(自治区)重点实验室
关键词：
顶空固相微萃取-气相色谱-质谱联用技术;葡萄;香气成分;SO2
摘 要：
采后SO_2处理对新疆"无核白"、"木纳格"和"红提"3种葡萄果实香气成分的影响。选4-壬醇做内标,采用顶空固相微萃取-气相色谱-质谱联用技术对SO_2处理前3种葡萄成熟果实的香气成分进行定性和定量分析,同时考察了添加焦亚硫酸钠对"无核白"葡萄香气成分的影响及采后不同贮藏时间SO_2处理对3种葡萄果实香气成分的影响。结果表明,3种葡萄中分别鉴定出40、38、37种香气成分,其中C_6醛(即己醛和E-2-己烯醛)在3种葡萄中的含量相对较高;添加焦亚硫酸钠对"无核白"葡萄中的C_6醛含量影响较大,其他成分含量变化不大;采后SO_2处理3种葡萄果实香气成分中的C_6醛的含量均随着贮藏时间的延长而逐渐降低。
译 名：
Effect of SO_2 Treatment on Aroma Components of Berries of Three Grape Varieties Grown in Xinjiang
作 者：
LIN Jiangli;ZHU Yajuan;WANG Jinxia;WANG Jide;Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region,College of Chemistry and Chemical Engineering, Xinjiang University;
关键词：
headspace solid-phase micro-extraction combined with gas chromatography-mass spectrometry(HS-SPME GC-MS);;grapes;;aromatic components;;SO2
摘 要：
The effect of slow-release SO_2 preservative treatment during postharvest storage on aroma components of white seedless, Munage and Red Globe grapes from Xinjiang was studied by headspace solid-phase micro-extraction combined with gas chromatography-mass spectrometry(HS-SPME-GC-MS). The contents of aroma components were calculated by internal standard method using 4-nonanol as the internal standard. We also investigated the changes in aroma components of white seedless grapes caused by treatment with sodium metabisulfite and the changes in aroma components of this variety and two others at different storage times. The results showed that 40, 38, and 37 aroma compounds were identified in white seedless, Munage and Red Globe grapes, respectively with hexanal and E-2-hexenal as the dominant ones in all these varieties. While seedless grapes treated with sodium metabisulfite markedly affected the contents of hexanal and E-2-hexenal but exhibited little effect on other components. The contents of hexanal and E-2-hexenal decreased with prolonging storage time in all three varieties with postharvest treatment with SO_2 preservative.
