Data/hora: 10/06/2024 08:56:23

Provedor de dados: | 60
País: | Brazil
Título: | Total polyphenols from Syzygium cumini (L.) Skeels fruit extract
Autores: | Migliato,Ketylin Fernanda; Carvalho,Elisângela Simões de; Sacramento,Luis Vitor Silva do; Mello,João Carlos Palazzo de; Baby,André Rolim; Velasco,Maria Valéria Robles; Salgado,Hérida Regina Nunes.
Data: | 2009-03-01
Ano: | 2009
Palavras-chave: | Total polyphenols; Syzygium cumini; Botanical extract; Analytical method validation; Spectrophotometry.
Resumo: | A precise, accurate and low cost spectrophotometric method was developed and validated for routine determination of total polyphenols, as pyrogallic acid equivalents, from the percolated and lyophilized extract of Syzygium cumini (L.) Skeels fruits. Validation was assessed experimentally and data were rigorously treated by statistical analysis. Analytical parameters were: linearity, interval (range), precision and recovery/accuracy, limit of detection (LOD, μg mL-1) and limit of quantification (LOQ, μg mL-1). The visible spectrophotometric method presented linearity (r² = 0.9979 ± 0.0010) over the concentration range 0.25-7.5 μg mL-1 of standard pyrogallic acid, precision &lt; 2.918171%, recovery/accuracy ranging from 96.228693 to 107.17701%, LOD = 0.21 μg mL-1 and LOQ = 0.64 μg mL-1.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502009000100015
Editor: | Universidade de São Paulo, Faculdade de Ciências Farmacêuticas
Relação: | 10.1590/S1984-82502009000100015
Formato: | text/html
Fonte: | Brazilian Journal of Pharmaceutical Sciences  v.45 n.1 2009
Fonte: | info:eu-repo/semantics/openAccess