Title
Influence of processing conditions on bioactive compound extraction from Vitis vinifera L. var. Alicante Bouschet grape skin
Date Issued
05 February 2019
Access level
open access
Resource Type
journal article
Author(s)
Ruíz-García Y.
Beres C.
Souza E.F.
Tonon R.V.
Cabral L.M.C.
Universidad Federal Rural de Río de Janeiro
Publisher(s)
Springer
Abstract
The aim of this study was to evaluate the effects of process conditions on the solid–liquid extraction of bioactive compounds from the Alicante Bouschet grape skin from the semi-arid region of Brazil. The influence of temperature (23–57 Â°C), ethanol concentration (16–84%) and citric acid concentration (0–4%) on the total phenolic content, monomeric anthocyanin content and on the antioxidant capacity of the extracts measured by oxygen radical absorbance capacity and cation radical scavenging activity (ABTS ·+ ) methods was investigated. Ethanol concentration and temperature had a significant influence on total phenolic compounds extraction and antioxidant capacity while monomeric anthocyanins extraction was only affected by ethanol concentration. The conditions selected as the most adequate for the extraction were: temperature of 40 Â°C, 50% v/v ethanol and 2% m/v citric acid.
Start page
1066
End page
1072
Volume
56
Issue
2
Language
English
OCDE Knowledge area
Alimentos y bebidas
Scopus EID
2-s2.0-85060532042
Source
Journal of Food Science and Technology
ISSN of the container
00221155
Sponsor(s)
The authors are grateful to Funda??o de Amparo ? Pesquisa do Estado do Rio de Janeiro (FAPERJ) (Process Number E-26/203294/2016) and Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) (Process Number 408330/2016-3) for the financial support. The work by Yineth Ru?z-Garc?a was supported by Programa Estudantes-Conv?nio de P?s-Gradua??o (PEC-PG) CAPES-Brazil (Process Number 88882.195654/2018-01). The authors would like to thank Agnelli Hollanda Oliveira for the assistance during the laboratory work and Rio Sol winery of the ViniBrasil group for kindly providing grape pomace.
Sources of information: Directorio de Producción Científica Scopus