Identification of ethanolic wood extracts using electronic absorption spectrum and multivariate analysis

Química Nova

Nascimento, Eduardo Sanches Pereira do¹  Cardoso, Daniel Rodrigues¹  Silva, Alexandre Ataide da¹  Franco, Douglas Wagner¹ 

关键词: spectrophotometric model;    fingerprint chromatographic;    cachaç;    a wood extract.;   

DOI  :  10.1590/S0100-40422012000300023

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The application of multivariate analysis to spectrophotometric (UV) data was explored for distinguishing extracts of cachaça woods commonly used in the manufacture of casks for aging cachaças (oak, cabreúva-parda, jatobá, amendoim and canela-sassafrás). Absorbances close to 280 nm were more strongly correlated with oak and jatobá woods, whereas absorbances near 230 nm were more correlated with canela-sassafrás and cabreúva-parda. A comparison between the spectrophotometric model and the model based on chromatographic (HPLC-DAD) data was carried out. The spectrophotometric model better explained the variance data (PC1 + PC2 = 91%) exhibiting potential as a routine method for checking aged spirits.

【 授权许可】

Unknown