Produção Nacional
Revisado por pares
Coumarins and phenolic fingerprints of oak and Brazilian woods extracted by sugarcane spirit
2009; Wiley; Volume: 32; Issue: 21 Linguagem: Inglês
10.1002/jssc.200900306
ISSN1615-9314
AutoresAlexandre Ataíde da Silva, Eduardo Sanches Pereira do Nascimento, Daniel R. Cardoso, Douglas Wagner Franco,
Tópico(s)Wood and Agarwood Research
ResumoAbstract A total of 25 sugarcane spirit extracts of six different Brazilian woods and oak, commonly used by cooperage industries for aging cachaça, were analyzed for the presence of 14 phenolic compounds (ellagic acid, gallic acid, vanillin, syringaldehyde, synapaldehyde, coniferaldehyde, vanillic acid, syringic acid, quercetin, trans ‐resveratrol, catechin, epicatechin, eugenol, and myricetin) and two coumarins (scopoletin and coumarin) by HPLC‐DAD‐fluorescence and HPLC‐ESI‐MS n . Furthermore, an HPLC‐DAD chromatographic fingerprint was build‐up using chemometric analysis based on the chromatographic elution profiles of the extracts monitored at 280 nm. Major components identified and quantified in Brazilian wood extracts were coumarin, ellagic acid, and catechin, whereas oak extracts shown a major contribution of catechin, vanillic acid, and syringaldehyde. The main difference observed among oak and Brazilian woods remains in the concentration of coumarin, catechin, syringaldehyde, and coniferaldehyde. The chemometric analysis of the quantitative profile of the 14 phenolic compounds and two coumarins in the wood extracts provides a differentiation between the Brazilian wood and oak extracts. The chromatographic fingerprint treated by multivariate analysis revealed significant differences among Brazilian woods themselves and oak, clearly defining six groups of wood extracts: (i) oak extracts, (ii) jatobá extracts, (iii) cabreúva‐parda extracts, (iv) amendoim extracts, (v) canela‐sassafrás extracts and (vi) pequi extracts.
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