杂醇油是引起黄酒上头的主要因素,严重影响黄酒的品质。该研究建立了外标法顶空进样毛细管气相色谱法测定清爽型黄酒中杂醇油的方法。结果表明方法准确可靠,线性范围为0～1 000 mg/L,样品加标回收率均大于96%,相关系数大于0.998 8,相对标准偏差为1.09%～1.72%。利用该法检测了市场上常见的10种黄酒,结果表明,杂醇油含量最高为528.4 mg/L,最低为152.8 mg/L。杂醇油含量按类型呈现干型<半干型≈半甜型<甜型的特征,初步探明不同工艺会导致黄酒中杂醇油含量的差异。最后通过与其它酒种的比较证实杂醇油是影响黄酒品质的重要因素。

Fusel alcohol is key factor of dizziness caused by drink Chinese rice wine and it influence its quality seriously.This research established a method that using headspace gas chromatography with capillary column to determine the fusel alcohol content.The column is PEG-20,quantitative by external standard method.The method used was proved sensitive,accurate and rapid.The linear range is 0-1000mg/L,sample recoveries are higher than 96%and correlation coefficient higher than 0.9988,the relative standard deviation is between 1.09%-1.72%.The result shows that the lowest fusel alcohol is 152.8mg/L while the highest is 560.8mg/L among tested ten samples.The content of fusel alcohol in Chinese rice wine presented by type,dry