Cereal Chem 40:593 - 600.  |  VIEW ARTICLE

Determination of Intrinsic Viscosity of Starches.

H. W. Leach. Copyright 1963 by the American Association of Cereal Chemists, Inc. 

The following improvements are recommended in the determination of intrinsic viscosity of starches: 1) the size 50 Cannon-Fenske capillary viscometer should be used to eliminate viscometer errors; 2) unmodified starches must be pregelatinized in hot water before they are dissolved in 1N sodium or potassium hydroxide; 3) all starch solutions must be clarified by centrifugation or filtration prior to determination of viscosity; 4) while various common methods of graphical analysis give the same results, intrinsic viscosity is preferably derived by plotting inherent viscosity against concentration.