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STUDY OF RESTRICTED DIFFUSION BY NMR IN FREEZE‐DRIED STARCH GELS
Author(s) -
CORNILLON P.,
McCARTHY M.J.,
REID D.S.
Publication year - 1997
Publication title -
journal of texture studies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.593
H-Index - 54
eISSN - 1745-4603
pISSN - 0022-4901
DOI - 10.1111/j.1745-4603.1997.tb00126.x
Subject(s) - starch , materials science , diffusion , isotropy , corn starch , diffraction , octane , pulsed field gradient , analytical chemistry (journal) , crystallography , chemical engineering , molecule , chromatography , chemistry , organic chemistry , thermodynamics , optics , physics , engineering
Pulsed‐gradient spin‐echo NMR diffraction patterns were used to determine the pore size in freeze‐dried corn starch gels (7 and 12% w/w) with octane used as the probe molecule. The pore diameters are approximately 200 μm and appear isotropic for this measurement. This technique can provide an effective measure of the pore size without altering the sample structure.