Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/201533
Type: Artigo de periódico
Title: Polyphenol Extraction Optimisation From Ceylon Gooseberry (dovyalis Hebecarpa) Pulp.
Author: Bochi, Vivian Caetano
Barcia, Milene Teixeira
Rodrigues, Daniele
Speroni, Caroline Sefrin
Giusti, M Monica
Godoy, Helena Teixeira
Abstract: Originally from Asia, Dovyalis hebecarpa is a dark purple/red exotic berry now also produced in Brazil. However, no reports were found in the literature about phenolic extraction or characterisation of this berry. In this study we evaluate the extraction optimisation of anthocyanins and total phenolics in D. hebecarpa berries aiming at the development of a simple and mild analytical technique. Multivariate analysis was used to optimise the extraction variables (ethanol:water:acetone solvent proportions, times, and acid concentrations) at different levels. Acetone/water (20/80 v/v) gave the highest anthocyanin extraction yield, but pure water and different proportions of acetone/water or acetone/ethanol/water (with >50% of water) were also effective. Neither acid concentration nor time had a significant effect on extraction efficiency allowing to fix the recommended parameters at the lowest values tested (0.35% formic acid v/v, and 17.6 min). Under optimised conditions, extraction efficiencies were increased by 31.5% and 11% for anthocyanin and total phenolics, respectively as compared to traditional methods that use more solvent and time. Thus, the optimised methodology increased yields being less hazardous and time consuming than traditional methods. Finally, freeze-dried D. hebecarpa showed high content of target phytochemicals (319 mg/100g and 1,421 mg/100g of total anthocyanin and total phenolic content, respectively).
Subject: Anthocyanin
D. Hebecarpa
Extraction Optimisation
Phenolic
Response Surface Methodology
Simplex Lattice Design
Rights: fechado
Identifier DOI: 10.1016/j.foodchem.2014.05.031
Address: http://www.ncbi.nlm.nih.gov/pubmed/24996344
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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