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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Recovery of anthocyanins from residues of Rubus fruticosus, Vaccinium myrtillus and Eugenia brasiliensis by ultrasound assisted extraction, pressurized liquid extraction and their combination

Full text
Author(s):
Da Fonseca Machado, Ana Paula ; Duarte Pereira, Ana Luiza ; Fernandez Barbero, Gerardo ; Martinez, Julian
Total Authors: 4
Document type: Journal article
Source: Food Chemistry; v. 231, p. 1-10, SEP 15 2017.
Web of Science Citations: 26
Abstract

This work investigated the extraction efficiency of polyphenols (anthocyanins) from blackberry, blueberry and grumixama residues using combined ultrasonic assisted extraction (UAE) and pressurized liquid extraction (PLE) (UAE + PLE). The performance of UAE + PLE was compared to those achieved by the isolated PLE and UAE methods and conventional Soxhlet extraction. The effects of the extraction methods and solvents (acidified water pH 2.0, ethanol + water 50% v/v and ethanol + water 70% ethanol v/v) on total phenolics content, anthocyanin composition and antioxidant capacity of extracts were investigated by a full factorial design. The extraction efficiency for total phenolics and antioxidant capacity in decreasing order was: UAE + PLE > PLE approximate to Soxhlet > UAE, and for anthocyanins it was: Soxhlet approximate to UAE > UAE + PLE > PLE, using hydroethanolic mixtures as solvents. Extractions with acidified water and ultrasound were not effective to recover phenolics. Two, four and fourteen anthocyanins were identified in the extracts from grumixama, blackberry and blueberry, respectively. (C) 2017 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 15/11932-7 - Integration of high pressure extraction to separation operations for the recovery of by-products from fruit processing
Grantee:Julian Martínez
Support Opportunities: Regular Research Grants
FAPESP's process: 13/02203-6 - Development of equipments for extraction, particle formation and chemical reactions using pressurized fluids
Grantee:Julian Martínez
Support Opportunities: Regular Research Grants