Premium
Characterization of Endosperm Starch from High‐amylose Mutants of Rice ( Oryza sativa L.)
Author(s) -
Asaoka M.,
Okuno K.,
Sugimoto Y.,
Yano M.,
Omura T.,
Fuwa H.
Publication year - 1986
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.19860380403
Subject(s) - endosperm , amylose , amylopectin , starch , mutant , oryza sativa , chemistry , food science , biochemistry , botany , biology , gene
The structure and properties of endosperm starch from high‐amylose mutants of rice were examined. The starch in the mutants was characterized by a higher content of amylose and loosely branched amylopectin with longer chains compared with non‐mutant starch. The starch granules in the mutants showed high temperatures of gelatinization and a type B pattern in X‐ray diffractometry. These properties were similar to those of amylose‐extender ( ae ) starch of maize. The effect of locations where rice plants were grown on the endosperm starches of one high‐amylose mutant and a non‐mutant was also investigated.