FOOD. Science. Technology. Quality

Food. SCIENCE. Technology. Quality

Food. Science. TECHNOLOGY. Quality

Food. Science. Technology. QUALITY

Authors

MAŁGORZATA KAPELKO, TOMASZ ZIĘBA

Title

The properties of extruded potato starch modyfied by glicyne

Abstract

The aim of the experiment was to determine the properties of potato starch preparations obtained from extruded in different temperatures starch, subjected grilling processes with or without glicyne addition. Starch preparations studied differed in their properties. The direction as well as the largeness of these changes depended on the extrusion temperature and the grilling process, alone or in the presence of glicyne, applied. Grilled preparations occurred less susceptibility on amyloglucosidase action and made pastes of lower viscosity when compared to not grilled preparations. Grilling process of extruded starch in the presence of glicyne caused the significant darkening of such preparations, and also a decrease of their solubility, water holding capacity, final temperature of gelatinization and viscosity of prepared pastes and lower digestibility starch to the activity of amyloglucosidase in the comparison to preparations only grilled.

Keywords

potato starch, extrusion process, modification, glycin

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