Kinetic Study on the Preparation of Sweet Potato Starch Phosphoric Esters

FOOD SCIENCE ›› 0, Vol. ›› Issue (): 122-124.

Kinetic Study on the Preparation of Sweet Potato Starch Phosphoric Esters

Received:2010-10-25 Revised:2011-06-15 Online:2011-07-15 Published:2011-07-02

Abstract

Abstract: The reaction kinetics for the preparation of sweet potato starch phosphoric esters was investigated in this study. A kinetic model that describes sodium trimetaphosphate concentration (cA) against reaction time (t) and temperature (T) was obtained as follows: cA=c0e－1.18×1013×e－1.12×104×—×t, where c0 was initial sodium trimetaphosphate concentration. The predicted values from the model were in good agreement with the experimental values.

Key words: phosphoric ester of sweet potato starch, modified starch, cross-linking reaction, kinetics

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Kinetic Study on the Preparation of Sweet Potato Starch Phosphoric Esters

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