基于气相色谱指纹图谱技术的赤渡酱酒质量评价方法研究

Quality Evaluation Method for Chidu Jiangjiu Based on Gas Chromatography and Fingerprints Technology

为对不同系列白酒进行综合、科学的区分和评价,本研究以赤渡酱酒4个系列酱香型白酒为研究对象,利用气相色谱(gas chromatography)对风味成分进行定性定量分析,并构建各系列酒指纹图谱,结合因子分析、聚类分析等方法对不同系列白酒进行区分和评价。结果显示,赤渡酱酒不同系列白酒风味成分指纹图谱差异显著,各系列指纹图谱具有独立性和代表性;通过因子分析对各系列白酒指纹图谱进行降维分析,建立评分模型,综合得分为赤渡酱酒蓝>赤渡酱酒红>赤渡酱酒酱>赤渡酱酒金,与感官品评和商品定位排序一致。综上所述,利用风味成分的差异性构建指纹图谱能够较为有效的对不同系列白酒进行区分和识别,通过因子分析、聚类分析可以有效、准确的对不同系列白酒进行评价和鉴别。

In order to comprehensively and scientifically distinguish and evaluate different Baijiu products,this study took 4 series of Chidu Jiangjiu as the research objects,and used gas chromatography to analyze their flavor components qualitatively and quantitatively.The fingerprints of each series was constructed,and factor analysis,cluster analysis and other methods were used to distinguish and evaluate different series of Chidu Jiangjiu.The results showed that the difference between the fingerprints of the flavor components of different series of Chidu Jiangjiu was significant,and the fingerprints of each series was independent and representative.Dimensionality reduction analysis was performed on the fingerprints by factor analysis,and a scoring model was established.The comprehensive scores of the 4 series were ranked as follows:Chidu Jiangjiu Blue>Chidu Jiangjiu Red>Chidu Jiangjiu Black>Chidu Jiangjiu Gold,which was consistent with the sensory evaluation results and the products positioning order.In conclusion,the fingerprints based on the difference of flavor components can effectively distinguish and identify different series of Baijiu products.Through factor analysis and cluster analysis,different series of Baijiu products can be effectively and accurately evaluated and distinguished.