Title
Pectins as Breadmaking Additives: Effect on Dough Rheology and Bread Quality
Date Issued
01 October 2012
Access level
metadata only access
Resource Type
journal article
Author(s)
Pérez G.T.
Ferrero C.
Universidad Nacional de La Plata
Publisher(s)
Springer Science and Business Media, LLC
Abstract
The effect of two types of pectins with different degrees of esterification on dough and bread characteristics was analysed. A high methoxyl pectin (HMP) and a low methoxyl pectin (LMP) were assayed in dough without or with salt (2%) at levels ranging from 0.25% to 2.0%. Farinographic water absorption increased when pectins were incorporated in dough with salt, whereas this effect was not observed in dough without salt. Pectin addition diminished the stability of dough in all cases. Texture profile analysis showed that pectins softened the dough, particularly when salt was added. Cohesiveness was also higher in doughs with salt at the maximum level of hydrocolloid addition. In dough with salt, HMP decreased the elastic and viscous moduli, while the values for tan (δ) were increased with respect to control. SEM micrographs showed that dough with pectin has a filamentous structure. In the breadmaking process, dough with HMP showed a better performance, leading to higher specific volumes and softer crumbs both in fresh and stored bread. © 2011 Springer Science + Business Media, LLC.
Start page
2889
End page
2898
Volume
5
Issue
7
Language
English
OCDE Knowledge area
Ingeniería de procesos Química Alimentos y bebidas
Scopus EID
2-s2.0-84867487187
Source
Food and Bioprocess Technology
ISSN of the container
19355130
Sponsor(s)
Acknowledgements The authors acknowledge the Agencia Nacional de Promocion Cientifica y Tecnologica–MINCYT, Consejo Nacional de Investigaciones Científicas y Tecnicas–CONICET, Universidad Nacional de La Plata and Universidad Nacional de Córdoba (Argentina) for the financial support. The authors want to specially thank to Dra. Laura Villata for the technical assistance in viscosity measurements needed to determine molecular weights.
Sources of information: Directorio de Producción Científica Scopus