Crystal Structure of Hydrated Potato Starch | Zendy

Cleven R. | Zendy; van Den Berg C. | Zendy; van der Plas L. | Zendy

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Crystal Structure of Hydrated Potato Starch

Author(s) -

Cleven R.,

van Den Berg C.,

van der Plas L.

Publication year - 1978

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.19780300703

Subject(s) - starch , potato starch , diffraction , superstructure , crystallography , hexagonal crystal system , crystal structure , materials science , chemistry , ice crystals , macromolecule , organic chemistry , optics , biochemistry , physics , thermodynamics

The X‐ray diffraction pattern of Nägeli‐treated potato starch was examined and changes in the diffraction pattern of native potato starch were measured for hydrations ranging from 0 to 50%. The fine structure of the diffraction pattern revealed many lines of very weak intensity, superimposed on a “basic structure” with hexagonal unit cell. It is suggested that that a “superstructure” exists in fully hydrated potato starch. A packing arrangement of hydrated potato starch is proposed in which every string of six helical macromolecular chains encloses a cylindrical cavity filled with water structured like cubic ice.

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