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生物活性化合物作为生物标志物用于验证来自巴西东南部的受保护原产地名称咖啡的真实性

Leticia Tessaro¹, Yhan da Silva Mutz², Natália de Oliveira Souza²

¹Department of Chemistry, Federal University of Lavras, University Campus, P.O. Box 3037, Lavras 37200-900, MG, Brazil.

|October 31, 2025

概括

有机酸和多等生物活性化合物可以验证咖啡的真实性.

科学领域:

食品化学食品化学食品化学
分析化学是一种分析化学.
农业科学农业科学

背景情况:

原产地名称将咖啡的质量与其独特的地理来源联系起来.
验证咖啡原产地对于质量保证和防止欺诈至关重要.
生物活性化合物是地理可追溯性的潜在化学标记物.

研究的目的:

为了识别和量化来自不同原产地保护区的巴西咖啡中的生物活性化合物.
评估基于生物活性化合物概况的咖啡原产地分类化学方法的有效性.
确定哪些特定的生物活性化合物在区分咖啡来源方面最有效.

主要方法:

使用二极管阵列检测 (HPLC-DAD) 的高性能液体染色学对25种生物活性化合物 (多,有机酸) 的量化.
使用化学测量技术对咖啡来源进行分类:部分最小平方区分分析 (PLS-DA),软独立模拟按类类类比 (SIMCA) 和最小平方支向量机 (LS-SVM).
基于敏感性,选择性和准确性的分类性能评估.

主要成果:

最小方形支持向量机 (LS-SVM) 模型实现了优异的分类性能 (100%的灵敏度,83-100%的选择性,97-100%的准确性).
特定的生物活性化合物,包括p-coumaric酸,马龙酸,罗斯马林酸和酸,被确定为咖啡来源的关键歧视因素.
该研究成功地根据其生物活性化合物概况区分了来自巴西四个不同地区的咖啡.

结论:

生物活性化合物作为可靠的生物标志物用于验证咖啡原产地名称的真实性.
开发的分析和化学测量方法可以有效地防止欺诈,并提高咖啡行业的产品可追溯性.
这项研究支持使用化学分析来对高价值农产品进行地理认证.

关键词:

化学测量方法化学测量方法这是分类分类的分类.地理标志是一种地理标志.有机酸有机酸有机酸聚醇是一种多醇.专用咖啡的咖啡是一种特殊的咖啡.

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