网购赤霞珠干红葡萄酒品质特征与价格的关联分析

选用某网站3个价格区段的赤霞珠干红葡萄酒为材料，采用搅拌棒吸附萃取-气相色谱质谱联用法（SBSE-GC-MS）和超高效 液相色谱法（UPLC）分别对葡萄酒中的香气成分和单体酚进行检测分析。 结果表明，3个价格区段的葡萄酒共检出45种香气成分，其 中酯类24种、高级醇6种、脂肪酸8种、醛酮类3种及其他香气物质4种。 价格较高的葡萄酒中17种香气成分的含量相对较高，价格与检测 到的单体酚物质中香豆素、山奈酚、没食子酸、咖啡酸、丁香酸、水杨酸以及白藜芦醇含量呈正相关（P＜0.05），相关系数R2均＞0.85。 总酚和总花色苷含量在不同价格区段酒样中差异显著（P＜0.05），其含量最高分别为1 680.74 mg/L、606.78 mg/L；单宁含量差异不 显著（P＞0.05）。

Correlation analysis between quality characteristics and price of online Cabernet Sauvignon dry red wine

Cabernet Sauvignon dry red wines were purchased online from a website with three different price levels. The aroma components and monomeric phenols in wines were analyzed by stir bar sorptive extraction-gas chromatography-mass spectrometry (SBSE-GC-MS) and UPLC, respectively. The results showed that 45 kinds of aroma compounds in three price levels of wines were identified, including 24 esters, 6 higher alcohols, 8 fatty acids, 3 aldehydes and 4 kinds of other aroma components. The concentration of 17 aroma compounds in the wine with high price was relatively high. Besides, there was a positive correlation (P＜0.05, R2＞0.85) between the price levels and 7 mono-phenols contents, including gallic, caffeic acid, syringic acid, salicylic acid, coumarin, kaempferol and resveratrol. The difference of total phenol and total anthocyanin contents in different price wine were significant (P＜0.05), with the highest contents of 1 680.74 mg/L and 606.78 mg/L, respectively. The difference of tannin content was not signif- icant (P＞0.05).