Characterization of Endosperm Starch from High‐amylose Mutants of Rice ( Oryza sativa  L.) | Zendy

Asaoka M. | Zendy; Okuno K. | Zendy; Sugimoto Y. | Zendy; Yano M. | Zendy; Omura T. | Zendy; Fuwa H. | Zendy

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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.

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