利用固相微萃取和气相色谱-质谱联用技术,对位于黄土高原地区的山西省乡宁县葡萄产区酿酒葡萄:坡地赤霞珠、平地赤霞珠、蛇龙珠和霞多丽果实的香气成分进行GC-MS检测分析,并结合计算机检索技术对分离化合物进行了鉴定,应用内标法测定了各成分的含量。结果发现,坡地赤霞珠、平地赤霞珠、蛇龙珠和霞多丽果实中分别含有24、20、23和27种香气物质,它们主要分属5类,含量由高到低依次是:醇类、醛类、羧酸类、环状烯烃和酯类;就单个物质而言,丁醇、己醛、乙酸和己酸含量较高。另外,葡萄园地形确实能影响葡萄果实的香气组成和含量,但其香气骨架基本一致。

Chemical constituents of the volatile compounds from the Cabernet sauvignon,Cabernet gernischt,Chardonnay varieties of wine-grape berries from xiangning County Shanxi province of Loess Plateau region were analyzed and compared by headspace solid-phase micro-extraction(HS-SPME) followed by gas chromatography-mass spectrometry(GC-MS).The result showed 24,20,23 and 27 compounds from Cabernet sauvignon of slope land,Cabernet sauvignon of flat land,Cabernet gernischt and Chardonnay varieties grapes.These volatile compounds belong to five classes whereby their contents decrease in descending order: alcohol,aldehyde,acid and cyclic olefin;as far as single compound concerned,the contents of 1-butanol,hexanal,acetic acid and hexanoic acid were higher.Besides,terrains of vineyards could indeed affect the composition and content of the volatile compounds,although their aromatic profiles were basically consistent.