Published 1976 | Version v1
Journal article Metadata-only

Degradation of corn starch under the influence of gamma irradiation

Creators

Description

Irradiation of corn (maize) starch with different doses of gamma irradiation ranging from 1 x 105 rad to 1 x 106 rad resulted in the increase of starch acidity and reducing power. Molecular degradation was observed as a result of marked decrease in starch viscosity and intinsic viscosity as well as swelling capacity. The gelatinization time and temperature of the irradiated starch became shorter than in the control sample. Internal changes in the irradiated starch occured as a result of lowering the number of glucose unit per segment in the irradiated starch molecules. All changes were proportional to the doses of gamma irradiation used. (orig.)

Abstract (German)

Bestrahlung von Maisstaerke mit verschiedenen Dosen von Gammastrahlung von 1 x 105 rad bis 1 x 106 rad fuehrte zu einer Steigerung der Staerkeaziditaet und Reduktionsfaehigkeit. Molekulare Degradation wurde als Resultat der stark abnehmenden Staerkeviskositaet und der Eigenviskositaet, ebenso der abnehmenden Schwellkapazitaet festgestellt. Die Gelatinisierungszeit und Temperatur der bestrahlten Staerke war kuerzer als die der Testprobe. Innere Veraenderungen in der bestrahlten Staerke erschienen als ein Ergebnis der herabgesetzten Zahl von Glukoseeinheiten pro Segment in den bestrahlten Staerkemolekuelen. Alle Veraenderungen waren proportional zu den Dosen der benutzten γ-Strahlung. (orig.)

Additional details

Identifiers

DOI
10.1002/star.19760280605;

Publishing Information

Journal Title
Starch - Stärke
Journal Volume
28
Journal Issue
6
Series
Staerke.
Journal Page Range
208-211
ISSN
0038-9056

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
9395197
Subject category
S60: APPLIED LIFE SCIENCES;
Descriptors DEI
BIOLOGICAL RADIATION EFFECTS; EXTERNAL IRRADIATION; GAMMA RADIATION; GLUCOSE; MAIZE; RADIATION DOSES; STARCH; SWELLING; TEMPERATURE DEPENDENCE; TIME DEPENDENCE; VISCOSITY
Descriptors DEC
ALDEHYDES; BIOLOGICAL EFFECTS; CARBOHYDRATES; CEREALS; DEFORMATION; ELECTROMAGNETIC RADIATION; GRAMINEAE; HEXOSES; IONIZING RADIATIONS; IRRADIATION; MONOSACCHARIDES; ORGANIC COMPOUNDS; PLANTS; POLYSACCHARIDES; RADIATION EFFECTS; RADIATIONS; REAGENTS; SACCHARIDES

Optional Information

Notes
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