摘要
采用气相色谱-质谱联用法研究6种不同品牌青稞酒中主体风味,用谱库进行检索和保留指数验证。结果表明,在6种品牌青稞酒中共鉴定出57种主体风味,包括酯类、醇类、烷烃类、芳香类、醛类、酮类、杂环类、酸类、酚类,共计9类物质。其中醇类的相对含量最高,范围在61%~90%之间;酯类其次,相对含量在4%~24%之间;酸类和醛类的相对含量均在1. 8%~5%之间。其中异戊醇、β-苯乙醇、异丁醇、乙酸乙酯、乙酸异戊酯、己酸乙酯是重要的香气活性物质,对青稞酒风味有重要贡献。6种品牌的青稞酒的化合物种类差异并不是非常显著,风味化合物的种类具有较强的稳定性和一致性。
The main flavor of 6 different brands of highland barley wine was studied by gas chromatography mass spectrometry( GC-MS),and the index was retrieved and retained by spectral library. The results showed that 57 kinds of main flavor were identified in 6 brands of highland barley wine,which were involved in a total of nine kinds of substances including esters,alcohols,alkanes,aromatic compounds,aldehydes,ketones,heterocycles,acids,and phenols. The relative content of alcohols was the highest,and the range is between 61%-90%. The relative content of esters was between 4%-24%. The relative contents of acids and aldehydes were between 1. 8%-5%.Wherein isoamyl alcohol,phenylethyl alcohol,isobutyl alcohol,ethyl acetate,isoamyl acetate,ethyl caproate were aroma active materials and had an important contribution to the highland barley wine flavor. The differences of the compounds of 6 brands of highland barley wine were not very significant,and the flavor compounds had strong stability and consistency.
引文
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