Premium
Untersuchung des Quellverhaltens von Stärke mit Hilfe der Kernresonanz‐Impuls‐Spektroskopie
Author(s) -
Hennig H. J.,
Lechert H.,
Goemann W.
Publication year - 1976
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.19760280103
Subject(s) - swelling , starch , molecule , deuterium , proton , chemistry , potato starch , polymer chemistry , materials science , organic chemistry , composite material , physics , quantum mechanics
Examination of the Swelling Mechanism of Starch by Pulsed NMR‐Method. The present paper deals with a new method for studies of the swelling mechanism of starch and the properties of the starch molecules in starch gels by pulsed NMR‐method. Before the measurement the starch is treated in D 2 O until all exchangeable OH‐protons are replaced by deuterons. The swelling is carried out in D 2 O and is observed by measurering the proton resonance of the CH‐protons of the starch molecules, which allows the determination of the mobility of these molecules. The method is explained by some examples especially by the dependence of the swelling behaviour of potatoe starch on the heating rate which shows the influence of aging on the swelling.