Related Experiment Video
Updated: Feb 2, 2026

Analysis and Specification of Starch Granule Size Distributions
Published on: March 4, 2021
Properties of potato starch treated with microwave radiation and enriched with mineral additives
Izabela Przetaczek-Rożnowska1, Teresa Fortuna1, Monika Wodniak1
1Department of Food Analysis and Evaluation of Food Quality, University of Agriculture in Krakow, Poland.
Abstract:
The paper discusses how microwave radiation and mineral additives affect selected physical and chemical properties of potato starch. Potato starch was irradiated with microwaves of 440 W or 800 W and then enriched with ions of potassium, magnesium, copper, or iron. Atomic absorption spectroscopy showed an effective incorporation of ions, while mineral saturation depended on both the microwave radiation density and the element being introduced. The data obtained prove that the microwave radiation and saturation with minerals affect the rheology and thermal characteristics of the samples under examination. Both the degree and the vector of the transformation depend on the microwave output and the mineral component introduced. Generation of radicals depends on starch degradation at high temperature while microwaves affect the number of the radicals formed. Amounts of the heat-generated radicals depend on the microwave output and the type of metal ions introduced into the starch structure.
Related Concept Videos
Water and Mineral Acquisition
Biological Effects of Radiation
Conjugate Addition (1,4-Addition) vs Direct Addition (1,2-Addition)
Conjugate addition results in a thermodynamically stable product. The reaction retains the stronger C=O bond at the expense of the weaker C=C π bond. The process is slow as the β carbon is less electrophilic than the carbonyl carbon.
Direct addition products are...
Minerals
Major...
Additional Subnuclear Structures
The nucleus contains many membrane-less subnuclear organelles or nuclear bodies, such as nucleoli, Cajal bodies, speckles,...
Radiation: Applications
The average...

