Please use this identifier to cite or link to this item:
Type: Artigo
Title: Effect of egg white protein-pectin electrostatic interactions in a high sugar content system on foaming and foam rheological properties
Author: Sadahira, Mitie S.
Rodrigues, Maria I.
Akhtar, Mahmood
Murray, Brent S.
Netto, Flavia M.
Abstract: The aim of this study was to evaluate the effect of electrostatic interaction between egg white protein (EW) and pectin in a high sugar content system (80 wt% total solid) on the foaming properties (density, overrun and stability) and foam rheological properties. A central composite rotatable design was carried out to study the effects of biopolymer concentration (1.40–5.60%, w/w) and EW:pectin ratio (7:1–63:1) on the apparent viscosity before whipping, foaming capacity (density and overrun) and foam rheological properties (storage modulus G’, loss modulus G” and phase angle δ) of sugar/EW/pectin mixtures at pH 3.0. The apparent viscosity increased as biopolymer concentration increased while EW:pectin ratio had no significant effect (p>0.10) on this response. At 7:1 EW:pectin ratio, the mixture presented low foaming capacity, resulting in foam with less solid character and low stability, possibly due to the pectin excess in the system. At 49:1 EW:pectin ratio, the mixture showed higher foaming capacity and foam elasticity. The formation of soluble complexes between EW and pectin possibly increased the continuous phase viscosity and enhanced the foam stability by slowing liquid drainage
Subject: Reologia
Country: Países Baixos
Editor: Elsevier
Rights: Fechado
Identifier DOI: 10.1016/j.foodhyd.2016.02.007
Date Issue: 2016
Appears in Collections:FEA - Artigos e Outros Documentos

Files in This Item:
File Description SizeFormat 
000373168200001.pdf2.33 MBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.