Comprehensive two-dimensional gas chromatography–mass spectrometry combined with multivariate data analysis for pattern recognition in Ecuadorian spirits

Chemistry Central Journal

Zulay Niño-Ruiz¹  José Gregorio Peña-Delgado²  Noroska Gabriela Salazar Mogollón²  Roldán Torres-Gutiérrez²  José Rafael de Almeida²  Fabio Augusto³  Guilherme Lionello Alexandrino³ 

[1] Departamento de Investigación, Universidad Estatal de Bolívar (UEB) Campus Universitario Laguacoto II;Ikiam-Universidad Regional Amazónica;Institute of Chemistry, State University of Campinas;

关键词: Multiway Principal Component Analysis;    Spirits beverages;    Comprehensive two-dimensional gas chromatography (GC × GC);    Solid phase microextraction;    Fisher-ratio;   

DOI  :  10.1186/s13065-018-0470-x

来源: DOAJ

【 摘 要 】

Abstract The current methodology used in quality control of Ecuadorian beverages such as Pájaro azúl, Puro and Pata de vaca is carried out by using conventional gas chromatography; however, it does not allow the fingerprinting of these Ecuadorian spirit beverages and their possible cases of adulteration. In order to overcome this drawback, comprehensive two-dimensional gas chromatography–mass spectrometry (GC × GC–MS) was combined with multivariate data analysis, revealing that compounds like citronellal, citronellol, geraniol, methyl anthranilate, (−)-trans-α-bergamotene, (−)-cis-α-bergamotene and d-limonene can be considered key elements for pattern recognition of these traditional beverages and product adulteration cases. Thus, the two-dimensional chromatographic fingerprints obtained by GC × GC–MS coupled with chemometric analysis, using Principal Component Analysis and Fisher-ratio can be considered as a potential strategy for adulteration recognition, and it may used as a quality assurance system for Ecuadorian traditional spirits.

【 授权许可】

Unknown