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在咖啡饮料中使用SPME预先缩甲的混合材料是基于深度浸泡溶剂的混合材料

Justyna Werner¹, Tomasz Grześkowiak¹, Agnieszka Zgoła-Grześkowiak¹

¹Affiliation: Institute of Chemistry and Technical Electrochemistry, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965, Poznan, Poland.

|October 23, 2023

概括

甲可以在咖啡烤过程中形成. 这项研究开发了一种新方法,使用深度环氧溶剂检测咖啡中的甲,发现它存在于烤咖啡和瞬时咖啡品种中.

科学领域:

分析化学分析化学
食品化学食品化学

背景情况:

咖啡是全球流行的一种饮料,其制备方法多样化.
咖啡过程可以产生潜在的有害副产品,包括甲.
准确量化咖啡中的甲对于食品安全至关重要.

研究的目的:

开发和验证一种用于咖啡中甲检测的新型分析方法.
为了调查咖啡样本中甲的存在和水平,咖啡的烤度和类型各不相同.
为了提高提取效率,合成和评估基于溶剂的新型深度环氧化物材料.

主要方法:

用薄膜固体相微提取 (TF-SPME) 技术进行甲预缩.
18种基于深度环氧溶剂 (DES) 的新型混合材料被合成并作为吸附剂进行了测试.
甲是使用纳什试剂衍生出来的,经过优化后通过中央复合材料设计得到量化.
分析是在不同烤级别和速溶咖啡品种的造咖啡样本上进行的.

主要成果:

在大多数二次裂变烤咖啡样本 (240°C) 中检测到甲,其度在0.17至0.75 ng/mL之间.
甲也被发现在深色即溶咖啡中,含量在0.18和0.54 ng/mL之间.
基于DES的优化TF-SPME方法证明了有效的预度和微量甲水平的确定.

结论:

开发的分析方法有效量化了各种咖啡类型中的甲.
甲是大量烤咖啡和速溶咖啡产品中常见的副产品.
基于溶剂的深度环氧化物材料显示出其作为复杂矩阵中微量分析的高效吸附剂的前景.

关键词:

在咖啡咖啡咖啡咖啡咖啡咖啡咖啡深层欧性溶剂深层欧性溶剂甲甲是一种形式的甲.混合材料是一种混合材料.固相微提取固相微提取方法

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