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Einfluß der Klärmittel und ihrer Menge auf die Bestimmung des Stärkegehalts von Getreide und Mühlennachprodukten
Author(s) -
Dudáš F.
Publication year - 1973
Publication title -
starch ‐ stärke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 82
eISSN - 1521-379X
pISSN - 0038-9056
DOI - 10.1002/star.19730250803
Subject(s) - ammonium molybdate , chemistry , phosphotungstic acid , starch , sodium molybdate , molybdate , bran , nuclear chemistry , ammonium , food science , inorganic chemistry , organic chemistry , raw material , catalysis
The Influence of Clarifying Agents and Their Amounts on Determination of Starch Content of Cereals and Milling By‐Products Based on chemical analyses and statistical evaluation the clarifying agent after Carrez in amounts of 3 to 5 ml is recommended for starch determination according to Ewers in barley groats. Results obtained with same amounts of sodium and ammonium molybdate come very close to those obtained with this clarifying agent. Lead acetates and phosphotungstic acid as proposed at times proved to be inept. For feed products and bran the clarifying agent after Carrez and both molybdates are recommended in amounts of 5 ml or more. Sodium molybdate should be preferred to ammonium molybdate. Once again phosphotungstic acid proved least effective as a clarifying agent. It lead to significantly low values.