Thermomechanical characterization of an amylose-free starch extracted from cassava (Manihot esculenta, Crantz)
The aim of this study was to determine and compare the melting (Tm), glass transition (Tg) and mechanical relaxation (Tα) temperatures of a new waxy cassava starch. Thermal transitions measurements were obtained by Differential Scanning Calorimetry (DSC) and Dynamical Mechanical Thermal Analysis (DMTA). The experimental data showed a high correlation between water volume fraction and melting temperature (Tm) indicating that the Flory-Huggins theory can be used to describe the thermal behavior of this starch. The Tm of waxy cassava starch-water mixes were lower than a waxy corn starch-water reference system, but differences were not statistically significant. The mechanical relaxation temperatures taken at tan δ peaks were found 29–38 °C larger than Tg. The Tα and Tg measured for waxy cassava starch exhibited similar properties to the ones of waxy corn starch, implying that waxy cassava starch can be used in food and materials industry.
Main Authors: | Pulido Diaz, Adriana, Lourdin, Denis, Della Valle, Guy, Fernández Quintero, Alejandro, Ceballos, H., Tran, Thierry, Dufour, D.L. |
---|---|
Format: | Journal Article biblioteca |
Language: | English |
Published: |
Elsevier
2017-02
|
Subjects: | amylopectin, melting, starch, manihot esculenta, extrusion, gelatinization, thermal analysis, amilopectina, fusión, almidón, extrusión, gelificación, análisis térmico, |
Online Access: | https://hdl.handle.net/10568/77842 https://doi.org/10.1016/j.carbpol.2016.11.058 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Molecular and supra-molecular structure of waxy starches developed from cassava (Manihot esculenta Crantz)
by: Rolland-Sabaté, Agnès, et al.
Published: (2012-10-27) -
Variación de los tiempos de fermentación de almidón agrio y de la velocidad de rotación del tornillo de un extrusor de uso sencillo en la obtención de almidón termoplástico = Variation of bitter starch fermentation times and speed rotation of the screw of simple use of extrusor in thermoplastic starch obtaining
by: Bernal, M.L., et al.
Published: (2005) -
Valorisation du manioc in Equateur : diversification des utilisations et mise en place de normes de qualité
by: Dufour, D.L.
Published: (1994) -
Physicochemical, Functional, and Macromolecular Properties of Waxy Yam Starches Discovered from Mapuey (Dioscorea trifida) Genotypes in the Venezuelan Amazon
by: Pérez, E., et al.
Published: (2010-12-15) -
Pullulanase Debranching of Various Starches Upgrades the Crystalline Structure and Thermostability of Starch‐Lauric Acid Complexes
by: Wongprayoon, Suchitra, et al.
Published: (2018-07)