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ESI(-)FT-ICR MS for the determination of best conditions for producing extract abundant in phenolic compounds from leaves of E. uniflora and FTIR-PCA as a sample screening method.
de Oliveira, Fernanda M G; Lyrio, Marcos V V; Filgueiras, Paulo R; de Castro, Eustáquio V R; Kuster, Ricardo M.
Afiliação
  • de Oliveira FMG; LABPETRO (Laboratory of Research and Methodologies Development for Petroleum Analysis), Chemistry Department, Federal University of Espírito Santo, Av. Fernando Ferrari, 514, Goiabeiras, P. O. Box: 29075-910, Vitória, ES, Brazil. fernanda.mirella.garcia@gmail.com.
  • Lyrio MVV; LABPETRO (Laboratory of Research and Methodologies Development for Petroleum Analysis), Chemistry Department, Federal University of Espírito Santo, Av. Fernando Ferrari, 514, Goiabeiras, P. O. Box: 29075-910, Vitória, ES, Brazil. fernanda.mirella.garcia@gmail.com.
  • Filgueiras PR; LABPETRO (Laboratory of Research and Methodologies Development for Petroleum Analysis), Chemistry Department, Federal University of Espírito Santo, Av. Fernando Ferrari, 514, Goiabeiras, P. O. Box: 29075-910, Vitória, ES, Brazil. fernanda.mirella.garcia@gmail.com.
  • de Castro EVR; LABPETRO (Laboratory of Research and Methodologies Development for Petroleum Analysis), Chemistry Department, Federal University of Espírito Santo, Av. Fernando Ferrari, 514, Goiabeiras, P. O. Box: 29075-910, Vitória, ES, Brazil. fernanda.mirella.garcia@gmail.com.
  • Kuster RM; LABPETRO (Laboratory of Research and Methodologies Development for Petroleum Analysis), Chemistry Department, Federal University of Espírito Santo, Av. Fernando Ferrari, 514, Goiabeiras, P. O. Box: 29075-910, Vitória, ES, Brazil. fernanda.mirella.garcia@gmail.com.
Anal Methods ; 16(23): 3701-3713, 2024 Jun 13.
Article em En | MEDLINE | ID: mdl-38805183
ABSTRACT
E. uniflora leaves are a rich source of phenolic compounds with biological activities, including myricitrin. In this study, the chemical profile of nine extracts prepared with leaves collected in three regions (mountain, beach, and mangrove) and at three different times of the day (8 am, 1 pm, and 6 pm) was evaluated from spectra originating from ultra-high resolution mass spectrometry (Fourier transform ion cyclotron resonance, FT-ICR) coupled to electrospray ionisation (ESI). The best time of the day and location for collecting the leaves of E. uniflora used as raw materials for producing extracts and the best ethanol concentration for obtaining an extract more abundant in compounds of interest were verified. Several flavonoids and phenolic acids were detected in their deprotonated form in the regions from m/z 200 to 1200. Myricitrin ([C21H20O12-H]-, m/ztheo 463.08820), its chloride adduct ([C21H20O12+Cl]-, m/ztheo 499.06488), other myricitrin derivatives, and some tannins were the main compounds detected. Considering obtaining an extract rich in phenolic compounds, including myricitrin, the best place and time of the day to collect E. uniflora leaves is in the beach region at 1 pm. In contrast, the best ethanol concentration for extract production is 70 wt%. Therefore, extraction at 96 wt% ethanol is better for obtaining an extract more abundant in phenolic acids, although 70 wt% ethanol also extracted these compounds. FTIR-PCA models were used to check for possible similarities in the data according to collection time of the day and location. These models demonstrated an excellent solution for sample screening.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fenóis / Extratos Vegetais / Folhas de Planta / Espectrometria de Massas por Ionização por Electrospray Idioma: En Revista: Anal Methods Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fenóis / Extratos Vegetais / Folhas de Planta / Espectrometria de Massas por Ionização por Electrospray Idioma: En Revista: Anal Methods Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido