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metadata.artigo.dc.title: Obtaining a protocol for extraction of phenolics from açaí fruit pulp through Plackett–Burman design and response surface methodology
metadata.artigo.dc.creator: Borges, Paulo Rogério Siriano
Tavares, Evandro Galvão
Guimarães, Isabela Costa
Rocha, Renata de Paulo
Araujo, Ana Beatriz Silva
Nunes, Elisângela Elena
Vilas Boas, Eduardo Valério de Barros
metadata.artigo.dc.subject: Plackett–Burman
Central composite design
Extraction of phenolics
Green chemistry
Planejamento composto central
Extração de fenólicos
metadata.artigo.dc.publisher: Elsevier 1-Nov-2016
metadata.artigo.dc.identifier.citation: BORGES, P. R. S. et al. Obtaining a protocol for extraction of phenolics from açaí fruit pulp through Plackett–Burman design and response surface methodology. Food Chemistry, [S. l.], v. 210, p.189-199, 1 Nov. 2016.
metadata.artigo.dc.description.abstract: This work aimed to obtain a simplified extraction protocol for simultaneous achievement of total anthocyanin and total phenolic in açaí pulp using a 3-step optimization approach. First, a Plackett–Burman 20 was applied in 16 independent variables selected in literature. Secondly, seven factors pre-selected in the first screening were reassessed using a Plackett–Burman 12. Then, four selected factors; solid/solvent ratio (g:mL), acetone concentration (%), time of extraction in acidified ethanolic solution (min) and ethanol concentration (%) were optimized using a central composite design with response surface methodology. In addition, the optimized protocol were compared with two standardized extraction procedures assessing açaí and grape pulps. The optimized method is effective for the simultaneous extraction of total phenolics and total anthocyanins, allowing representative measurements of free radical-scavenging capacity (DPPH) and trolox equivalent capacity (TEAC) of grape and açaí pulps, with savings of time and reagents, moreover, avoiding the use of methanol.
metadata.artigo.dc.language: en_US
Appears in Collections:DCA - Artigos publicados em periódicos

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