用顶空-固相微苹取法和同时蒸馏萃取法研究了酒用粮食中的挥发性香气成分，采用不同极性和不同膜厚的萃取头进行顶空固相微萃取，使用二氯甲烷、乙醚等作为有机溶剂进行同时蒸馏，用GC／MS对萃取成分进行定性检测。结果表明，项空-固相微萃取法宜采用中等极性和中等膜厚的萃取头，同时蒸馏萃取法用二氯甲烷作为有机溶剂较合适，两种方法结合可以更全面地测定粮食的香气成分.%The volatile components of grains used for liquor-making were analyzed by headspace-solid phase micro-extraction method and simul- taneous distillation ＆ extraction method. Different polarity and extraction fibers of different thickness were used in headspace- solid phase micro-extraction. Dichloromethane, diethyl ether or other organic solvent were used in simultaneous distillation ＆ extraction. GC / MS was used for qualitative detection of the extractives. The results showed that medium polarity and extraction fibers of medium thickness were the best choice, and dichloromethane as organic solvent was more suitable.The use of the above two methods could entirely realize the detection of the flavoring components of grains.
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