Microwave-assisted preparation of potato starch silicated with silicic acid

Hanna Staroszczyk; Piotr Janas

doi:10.1016/j.carbpol.2010.03.017

Microwave-assisted preparation of potato starch silicated with silicic acid

Abstract

Application of microwave irradiation for the silication of granular potato starch with silicic acid, and the properties of silicated starch were investigated. Potato starch was esterified on 20 min microwave irradiation of starch with silicic acid, applying the power of 450 or 800Wand, for comparison, on 120 min convectional heating of the reagent blend at 100 ◦C. The degree of esterification and the reaction efficiency did not depend on the silication mode, but they increased with increasing power of the microwave irradiation. The degree of esterification increased with the reagent ratio. The esterification provided either monoesters or crosslinked esters of retained granularity, insignificantly disrupted crystallinity, and high hydrophobicity. An increased dose of silicic acid in the reaction mixtures provided thermally more stable crosslinked esters.

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Authors (2)

Hanna Staroszczyk dr hab. inż.
Piotr Janas
- Agricultural University

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Category:: Articles
Type:: artykuł w czasopiśmie wyróżnionym w JCR
Published in:: CARBOHYDRATE POLYMERS no. 81, pages 599 - 606,
ISSN: 0144-8617
Language:: English
Publication year:: 2010
Bibliographic description:: Staroszczyk H., Janas P.: Microwave-assisted preparation of potato starch silicated with silicic acid// CARBOHYDRATE POLYMERS. -Vol. 81, nr. 3 (2010), s.599-606
DOI:: Digital Object Identifier (open in new tab) 10.1016/j.carbpol.2010.03.017
Verified by:: Gdańsk University of Technology