The influence of storage conditions on the properties of extruded potato starch and kaolin
Ewa Tomaszewska-Ciosk
ewa.tomaszewska-ciosk@upwr.edu.plKatedra Technologii Rolnej i Przechowalnictwa, Uniwersytet Przyrodniczy we Wrocławiu (Poland)
Antoni Golachowski
Katedra Technologii Rolnej i Przechowalnictwa, Uniwersytet Przyrodniczy we Wrocławiu (Poland)
Wioletta Dróżdż
Katedra Technologii Rolnej i Przechowalnictwa, Uniwersytet Przyrodniczy we Wrocławiu (Poland)
Hanna Boruczkowska
Katedra Technologii Rolnej i Przechowalnictwa, Uniwersytet Przyrodniczy we Wrocławiu (Poland)
Ewa Zdybel
Katedra Technologii Rolnej i Przechowalnictwa, Uniwersytet Przyrodniczy we Wrocławiu (Poland)
Abstract
The purpose of the work was to determine the properties of extrudates obtained from potato starch and potato starch with kaolin addition during storage in different conditions. The starch was subjected to extrusion process in a single screw laboratory Brabender extruder (of 20DN type). The extruded starch was stored in drier chamber and controlled environment chamber. Storage periods were defined as follows: 1, 3, 6, 9, 14 and 21 days. After this time, we determined: moisture content, expansion ratio, elongation at breaking and bending moment in prepared samples. The properties of extrudates were different and depended on the kind of extruded starch, time and conditions of storage. Extrudates produced from starch with kaolin were characterized with lower expansion ratio, lower water adsorption, lower elongation at breaking and bending moment in comparison to extrudates produced using native potato starch only. Extruded starch stored in higher moisture showed higher expansion, lower elongation and lower bending moment in comparison to that stored in lower moisture.
Keywords:
biodegradable materials, extrusion, kaolin, potato starchReferences
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Authors
Ewa Tomaszewska-Cioskewa.tomaszewska-ciosk@upwr.edu.pl
Katedra Technologii Rolnej i Przechowalnictwa, Uniwersytet Przyrodniczy we Wrocławiu Poland
Authors
Antoni GolachowskiKatedra Technologii Rolnej i Przechowalnictwa, Uniwersytet Przyrodniczy we Wrocławiu Poland
Authors
Wioletta DróżdżKatedra Technologii Rolnej i Przechowalnictwa, Uniwersytet Przyrodniczy we Wrocławiu Poland
Authors
Hanna BoruczkowskaKatedra Technologii Rolnej i Przechowalnictwa, Uniwersytet Przyrodniczy we Wrocławiu Poland
Authors
Ewa ZdybelKatedra Technologii Rolnej i Przechowalnictwa, Uniwersytet Przyrodniczy we Wrocławiu Poland
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Copyright (c) 2012 Ewa Tomaszewska-Ciosk, Antoni Golachowski, Wioletta Dróżdż, Hanna Boruczkowska, Ewa Zdybel
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