Published December 1974 | Version v1
Journal article Metadata-only

Modification of rice starch by gamma irradiation to produce soluble starch of low viscosity for industrial purposes

Creators

  • 1. Ain Shams Univ., Cairo (Egypt). Dept. of Food Science

Description

Because starch of low viscosity is important for industrial purposes this research was carried out to study the possibility of producing this sort of starch by treating rice starch with γ-irradiation. Results indicated than when rice starch was modified by γ-irradiation, the reducing power increased and degradation as well as molecular breakdown occured followed by sharp decrease of its viscosity, specific viscosity and intrisinc viscosity. Results showed that starch became more soluble by treating with γ-irradiation and lost its resistance to water as its swelling capacity decreased. All these changes were proportional to the doses of γ-irradiation. (orig.)

Abstract (German)

Da niedrigviskose Staerke fuer industrielle Zwecke von Bedeutung ist, wurde diese Forschungsarbeit mit dem Ziel durchgefuehrt, die Moeglichkeiten zur Herstellung einer solchen Staerke durch γ-Bestrahlung von Reisstaerke zu untersuchen. Die Resultate deuten darauf hin, dass bei der Modifizierung von Reisstaerke durch γ-Bestrahlung das Reduktionsvermoegen zunimmt und dass sowohl Degradation als auch molekularer Zusammenbruch stattfindet, gefolgt von starker Abnahme der Viskositaet. Die Ergebnisse zeigen weiterhin, das die Staerke durch γ-Bestrahlung loeslicher wird und ihren Widerstand gegenueber Wasser verliert bei gleichzeitiger Verringerung ihrer Quellungsfaehigkeit. Alle diese Veraenderungen sind den angewendeten Strahlungsdosen proportional. (orig.)

Additional details

Identifiers

DOI
10.1002/star.19740261206;

Publishing Information

Journal Title
Starch - Stärke
Journal Volume
26
Journal Issue
12
Series
Staerke.
Journal Page Range
422-425
ISSN
0038-9056

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
6206708
Subject category
S60: APPLIED LIFE SCIENCES;
Descriptors DEI
CHEMICAL PROPERTIES; CHEMICAL RADIATION EFFECTS; DOSE-RESPONSE RELATIONSHIPS; FABRICATION; GAMMA RADIATION; IRRADIATION; REDUCTION; SOLUBILITY; STARCH; VISCOSITY
Descriptors DEC
CARBOHYDRATES; CHEMICAL REACTIONS; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; ORGANIC COMPOUNDS; POLYSACCHARIDES; RADIATION EFFECTS; RADIATIONS; REAGENTS; SACCHARIDES

Optional Information

Notes
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