摘要
以典型芝麻香型-芝麻香白酒为研究对象,采用顶空固相微萃取提取其挥发性成分,借助气相色谱-氮磷检测器对含氮化合物检测高效、专一性强的特点,建立了一种简单、快速检测芝麻香白酒含氮化合物的方法。顶空固相微萃取的最佳条件是:65μm PDMS/DVB萃取头,吸附温度40℃,萃取时间30 min,Na Cl质量浓度0.3g/m L。分析结果表明:共检测到28个色谱峰(RSN>3),通过标准品比对,定性出15种含氮化合物,包括10种吡嗪类化合物,3种吡啶类化合物,1种噻唑类化合物,1种其他类化合物。其中,4-甲基噻唑首次在芝麻香白酒中发现。
A simple and rapid method was established for the analysis of the aroma components extracted in typical Guojing Sesame-flavor liquor. The aroma components extracted by headspace-solid phase microextraction was analyzed by GC/NPD, which was efficient and specific for the analysis of the nitrogen-containing compounds. The 65 μm PDMS/DVB fiber, adsorption time of 30 min, a temperature of 40 ℃ and NaCl concentration of 0.3 g/mL were selected as the optimum conditions. The analysis results showed that 28 peaks were detected by GC/NPD（RSN〉3）; 15 nitrogen-containing compounds were identified by standards, including 10 kinds of pyrazines, 3 kinds of pyridines, 1 kinds of thiazoles,and 1 kinds of other compounds. 4-Methylthiazole was firstly identified in Sesame-flavor liquors.
出处
《中国食品学报》
EI
CAS
CSCD
北大核心
2015年第4期247-253,共7页
Journal of Chinese Institute Of Food Science and Technology
基金
国家自然科学基金-青年科学基金项目(31301466)
国家自然科学基金配套(市级)项目(19005418040)
北京市教委科技计划重点项目(KZ201410011015)
关键词
顶空固相微萃取
气相色谱-氮磷检测器
芝麻香型白酒
含氮化合物
headspace-solid phase microextraction
gas chromatography-nitrogen phosphorus detector（GC-NPD）
Sesame-flavour liquors
nitrogen-containing compounds
