Czech J. Food Sci., 2003, 21(5):176-184 | DOI: 10.17221/3496-CJFS

Changes of starch during microwave treatment of rice

J. Pinkrová, B. Hubáčková, P. Kadlec, J. Příhoda, Z. Bubník
Department of Carbohydrate Chemistry and Technology, Institute of Chemical Technology, Prague, Czech Republic

The properties of rice after microwave irradiation were evaluated by means of amylograph and enzymic determination of the total and the damaged starch. The content of the total starch was not affected by the immediate energy output used for irradiation but that of the damaged starch increased with microwave energy absorbed and the temperature of treatment, mainly at the moisture of 30% and the temperature of 100°C. The results of damaged starch determination are in accordance with the amylographic readings of changes at maximum viscosity. Amylographic characteristics suggest minimal changes resulting in MW treatment of rice at moisture below 23%.

Keywords: rice; starch; amylograph; microwave

Published: October 31, 2003  Show citation

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Pinkrová J, Hubáčková B, Kadlec P, Příhoda J, Bubník Z. Changes of starch during microwave treatment of rice. Czech J. Food Sci. 2003;21(5):176-184. doi: 10.17221/3496-CJFS.
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