基于气相-离子迁移谱技术快速鉴定黄酒酒龄及品牌
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国家重点研发计划项目(2017YFD0400102)


Rapid Identification of Age and Brand of Chinese Rice Wine Based on Gas-ion Mobility Spectrometry
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    摘要:

    目的:建立一种黄酒标注酒龄及品牌快速鉴别的气相色谱-离子迁移谱检测方法。方法:以5种标注酒龄及3个品牌的黄酒为研究对象,采用气相色谱-离子迁移谱法(GC-IMS)测定样品中的挥发性化合物,并进行主成分分析。结果:挥发性物质指纹图能识别含量差异大的挥发物,3~5年和8~20年古越龙山黄酒可通过指纹图直观判断,对于不同品牌的黄酒也可快速区分,然而,较难区分3年和5年,8年和20年的黄酒。用色度角可以很好地区分所有品牌及标注酒龄的黄酒。在鉴定的5种挥发物中,乙酸乙酯含量在不同黄酒中基本不变,二甲基二硫含量变化也较少,而苯甲醛、乙酸异戊酯和丁酮含量差异较大,可作为不同标注酒龄及品牌黄酒的主要区分指标。主成分分析具有较好的分类效果,可有效区分不同标注酒龄及品牌的差异。结论:离子迁移谱法结合主成分分析能够快速区分不同黄酒标注酒龄及品牌的差异,在黄酒质量评估等领域有较好的应用前景。

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    Objective: To establish a rapid method of classifying marking age and brand of Chinese rice wines, which was detected by gas chromatography-ion mobility spectrometry (GC-IMS). Method: The volatile organic compounds (VOCs) in 5-year marking age and 3 company brands Chinese rice wines samples were detected by GC-IMS method with automatic headspace sampling system and datas were processed with principal component analysis(PCA). Result: The amounts of volatile compounds in Chinese rice wines samples were obviously different, marking age and brand could be distinguished by the VOCs fingerprints, 3-5 years marking age "Guyuelongshan" rice wine samples could be quickly distinguished with 8-20 years marking age by the fingerprints, while it was difficult to distinguish difference between 3-year and 5-year marking age wine, between 8-year and 20-year marking age wine with this method. A improvement method to discriminate difference among all marking age and company brands wines were performed by measuring hue angle from VOCs fingerprints with photoshop software. There were no significant difference of ethyl acetate content among all the samples, and slightly change of dimethyl disulfide content, while remarkable differences were found in benzaldehyde, 3-methylbutyl acetate and 2-butanone among 7 samples, which could be used for distinguishing marking age and brand of the Chinese rice wine. Chinese rice wines could be classified accurately by PCA, and some interesting regularity were shown in the score plots with the help of PCA. Conclusion: GC-IMS combined with PCA was a useful and reliable technology for intuitive discriminating marking age and brand of Chinese rice wine, and it had potential wide application prospect in rice wine quality evaluation.

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顾双;任芳;韦真博;张振方;王本友;朱璐艺;王俊.基于气相-离子迁移谱技术快速鉴定黄酒酒龄及品牌[J].中国食品学报,2020,20(9):248-255

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  • 在线发布日期: 2020-10-13
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