Potentiometrische Molekulargewichtsbestimmungen von Stärken
- 1 January 1976
- journal article
- research article
- Published by Wiley in Starch ‐ Stärke
- Vol. 28 (2) , 51-54
- https://doi.org/10.1002/star.19760280205
Abstract
Potentiometric Determination of Molecular Weights of Starches.The volumetric method of Hassid for sugar determination in plant materials, which is based on the oxidation of sugars by means of alkaline potassium hexacynoferrate (III) solution and retitration of the Fe2+ ions with cerium sulphate solution, was modified to determine the molecular weights Mn of native starches. Potentiometric titrations yielded well reproducible results. There was a good correlation between the molecular weights of six native starches and their alkali numbers.Keywords
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