Substantial Rise of Gelatinization Temperature of Starch by Adding Hydroxide
- 1 January 1979
- journal article
- research article
- Published by Wiley in Starch ‐ Stärke
- Vol. 31 (7) , 228-230
- https://doi.org/10.1002/star.19790310705
Abstract
The initial gelatinization temperatures of several corn starch suspensions in alkaline sulphate solutions were determined. In trying to correlate the data, an unexpected effect of the hydroxide concentration upon the gelatinization temperature was discovered. Subsequent experiments did reveal substantial rises of the gelatinization temperatures after having added hydroxide to the starch suspensions in salt solutions. Rises as great as 25 °C have been measured. The results of further experiments indicate that this hydroxide effect is common to all starches suspended in solutions of an inorganic salt.Keywords
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