两种不同类型的基于大米的Baijiu之间的芳香化合物和感官特征的比较
Fan Wu1,2, Shaohui Fan3, Guoliang He3
1Lab of Brewing Microbiology and Applied Enzymology, School of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, China.
青风味的 Baijiu 与传统的米 Baijiu 相比,提供了独特的植物,油性和烤的香味. 通过感官和化学分析确定了关键的芳香化合物,揭示了七个对清华的关键贡献者.
科学领域:
- 食品科学与技术 食品科学与技术
- 感官科学 感官科学
- 分析化学 分析化学
背景情况:
- 基于大米的Baijiu,特别是青风味的Baijiu,在中国越来越受欢迎.
- 青风味的Baijiu是一种Xiaoqu发酵的Baijiu的变体,使用大米和改进的生产工艺.
- 了解香味特征对于 Baijiu 市场的产品开发和消费者偏好至关重要.
研究的目的:
- 为了全面地描述和比较青风味的白和传统的米味白的香味特征.
- 为了确定负责每个Baijiu类型独特感官特征的关键芳香化合物.
- 为了阐明两种基于大米的Baijiu变体之间的芳香差异的化学基础.
主要方法:
- 定量描述性分析 (QDA) 用于静态感官分析.
- 感觉时间主导 (TDS) 用于动态感官评估.
- 气体染色学-嗅觉测量-质谱学 (GC-O-MS) 和多方法量化用于芳香化合物分析.
- 气味活动值 (OAV) 计算,以确定显著的气味贡献者.
- 芳香重组和省略实验以验证关键化合物.
主要成果:
- 清朝风味的白呈现出鲜明的植物,油性和烤的香气.
- 传统的米味的Baijiu的特点是显著的水果,花和酸味的音符.
- 分析了61个关键的芳香化合物,其中22个被确定为基于OAV的显著贡献者.
- 七种化合物,包括 (2E,4E) -Deca-2,4-dienal,linalol,apricolin,乙烯酸,乙烯基异酸盐,乙烯基酸盐和乙烯基异酸盐,被确定为为青风味的Baijiu香气的主要贡献者.
结论:
- 青风味和传统的米风味的 Baijiu. 的芳香特征存在显著的差异.
- 通过感官和化学分析识别的特定挥发性化合物负责这些气味区别.
- 这些发现为以米为基础的 Baijiu 的有针对性的生产和质量控制提供了宝贵的见解.
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