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猕猴桃果酒香气成分的固相微萃取GC/MS分析 总被引:2,自引:5,他引:2
采用固相微萃取法提取、富集秦美猕猴桃果酒中的香气成分,经GC-MS分离与分析,共鉴定出64种化合物,其含量占挥发性成分的96.44%,包括酯类、醇类、酸类、醛酮类、烃类以及少量的其他化合物,以酯类、醇类、酸类化合物为主.其中主要成分为乙酸-3-甲基丁酯、3-甲基丁醇、苯乙醇、辛酸乙酯、癸酸乙酯、乙酸乙酯、乙酸苯乙醇酯、已酸乙酯、辛酸、2-甲基丙醇、乙酸-2-甲基丙酯、癸酸、乙酸己酯、己酸等.这些物质的共同作用形成了猕猴桃果酒独特的风味. 相似文献
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采用固相微萃取法提取、富集柿子果酒中的香气成分,经GC-MS分析,分离出62个峰,鉴定出56种化合物,占总峰面积86.66%,包括醇类、酯类、酸类等化合物.其中主要成分为异戊醇(38.55%)、苯乙醇(14.50%)、甲酸异戊酯(7.44%)、2-甲基-1-丁醇(4.72%)、乙酸-3-甲基丁酯(2.25%)、异丁醇(... 相似文献
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采用固相微萃取法提取、富集黑加仑果醋中的香气成分,经GC-MS分离与分析,结合谱库检索技术对化合物进行鉴定,应用峰面积归一化法测定各成分的相对含量,共鉴定出89种香气成分。其中,匹配度在80以上有35种,其含量占挥发性成分的81.65%,包括酸类(3种)、酯类(7种)、酚类(3种)、醇类(4种)、烃类(13种)、醛酮类(4种)和醌类(1种)化合物,酸类(33.38%)的相对含量最高,其次是酯类(26.44%)、酚类(8.69%)、醇类(4.91%)、烃类(4.61%)、醛酮类(3.28%)、醌类(0.34%),这些物质的共同作用形成了黑加仑果醋独特的风味。 相似文献
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采用固相微萃取和气相色谱-质谱联用技术分析了白兰花的香气成分,共分离了114个色谱峰,鉴定了其中的75个成分,占其香气成分的97.26%. 相似文献
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研究采用固相微萃取气质联用仪(SPME/GC/MS)测定茶叶香气成分.采用2 cm-50/30 umDVB/CAR/PDMS StableFlex的萃取纤维头,65℃对5 g新鲜样品顶空萃取30 min后进行GC/MS分析.鉴定出52种化学成分,占挥发性化学成分的92.76%.方法具有简便、快速、准确、样品量小等特点,适用于茶叶香气成分的快速测定. 相似文献
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沙棘果醋香气成分的GC/MS分析 总被引:2,自引:0,他引:2
采用顶空固相微萃取法对沙棘果醋的香气成分进行提取,用气相色谱-质谱对香气化合物进行分析,结合谱库检索技术对化合物进行鉴定,应用峰面积归一化法测定各成分的相对含量,共分离鉴定出82种香气成分,其中,匹配度在80以上有35种,其相对总量为84.57%。该35种主要的香气成分中,酯类(11种),酸类(2种)、烃类(17种)、醇类(1种)、酮类(2种)、酚类(2种)。其中,相对含量最高的是酯类(56.35%),其次是烃类(12.58%)、酸类(11.33%)、酮类(1.93%)、酚类(1.57%)、醇类(0.81%)。 相似文献
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采用液液萃取法对山西降脂醋进行预处理,应用毛细管气相色谱和色质联用(GC/MS)技术对其进行定性分析,结果表明,山西降脂醋中高沸点的物质含量较多,山西降脂醋中检测出了41种香气成分,有酸类、醇类、酯类、酮类、醛类、杂环化合物等.主要香气成分有醋酸、2-羟基-2-甲基-丙酸、丁酸、2,3-丁二醇、1,3-丁二醇、戊内酯、二氢-5-甲基-3(H)-呋喃酮、糠醇、1,3-二乙酰氧基丙烯、3,4-二甲基-2-丁酸、苯乙酸、香草醇、2-糠醛、苯乙醇、吡啶、四甲基吡嗪. 相似文献
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Damian Conrad Frank 《LWT》2004,37(2):139-154
The applicability of solid phase microextraction (SPME) as a technique for the concentration of cheese aroma for analysis by gas chromatography-mass spectrometry (GC-MS) and gas chromatography-olfactometry (GC-O) was assessed in this preliminary study. Three each of the following cheese varieties were examined: cheddar, hard grating and mold-ripened blue. Volatile components were concentrated by Carboxen-PDMS SPME fibres for 16 h (overnight) and analysed by GC-MS and GC-O. Odor compounds, which could be perceived at the olfactory port (OP), were matched with electron impact (EI) and methanol chemical ionization (CI) mass spectra. The volatile compounds identified were compared to previously reported cheese aroma compounds. Of the components identified via olfactometry, methanethiol, methional, dimethyl trisulfide and butanoic acid were present in all of the cheeses implying their essential role in the formation of basic cheese aroma. A number of alkyl-pyrazines were also found to impart roasted nutty, raw potato and savoury broth-like notes in some of the cheeses. In all cases, the aroma active compounds identified via olfactometry were in agreement with those reported in the literature. In a separate study, it was demonstrated on a number of cheeses that the adsorption of most important aroma volatiles increased consistently up to 16 h; i.e. sulfur compounds, lactones, pyrazines, phenolic compounds and benzene derivatives. For the strong-smelling pecorino and blue cheeses, however, some analyte displacement effects were observed. Data indicated that a sampling time between 9 and 16 h was appropriate and displacement/competition reactions tended to occur in strong cheeses, i.e. those which have undergone extensive lipolysis e.g. pecorino, very high concentration of butanoic and hexanoic acid, and/or β-oxidation e.g. blue cheese, with high concentrations of 2-heptanone and 2-nonanone. 相似文献
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采用顶空固相微萃取和气相色谱质谱联用技术分析了甘薯醋液中的挥发性香气成分。结果表明,从甘薯醋液中检测并鉴定出 49 种化合物。其中酸类9种(61.96%)、酯类9种(9.89%)、醇类9种(8.98%)、杂环类化合物11种(8.22%)、醛类2种(2.04%)、酚类1种(0.09%)、酮类4种(0.08%)及其他化合物4种(4.72%)。含量较高的乙酸和5-氨基颉草酸、2,3-丁二醇和乙醇、乙酸乙酯和L(-)-乳酸乙酯以及2,3,5,6-四甲基吡嗪是形成甘薯醋风味特征的主要物质。 相似文献
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采用GC-MS法对'95-54'、'95-117'苹果酒、醋中的香气物质的种类与含量进行检测分析.95-54苹果酒中检测出48种香气物质,占总峰面积的90.36%.95-54苹果醋中检测出42种香气物质,占总峰面积的98.66%.95-117苹果酒中检测出43种香气类物质,占总峰面积的86.59%.95-117苹果醋中检测出49种香气物质,占总峰面积的99.37%.这些香气物质主要是醇类、醛类、酮类、酸类、酯类、缩醛类和萜烯类.分析得出不同品种的苹果酒和苹果醋都存在一定的共性和差异,苹果酒和醋之间的香气差异也均符合酒醋基本特征. 相似文献