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Saccharides of Developing Wheat Grain Determined by 13 C‐NMR Spectroscopy
Author(s) -
Meredith Peter,
Dengate Howard N.,
Hennessy Wayne,
Blunt John W.,
Hartshorn M. W.,
Munro Murray H.
Publication year - 1980
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.19800320606
Subject(s) - raffinose , stachyose , fructose , maltose , maltotriose , arabinose , xylose , sucrose , chemistry , galactose , nuclear magnetic resonance spectroscopy , carbohydrate , sugar , spectroscopy , food science , biochemistry , stereochemistry , fermentation , physics , quantum mechanics
Automated carbon‐13 nuclear magnetic resonance spectroscopy of saccharides from wheat serially harvested through one growing season showed variation of glucose, fructose, sucrose and maltose similar to previous analyses. In a diurnal series glucose and fructose concentrations fluctuated periodically but were relatively unaffected by light and dark. Qualitative 13 C‐NMR showed myo ‐inositol, glycerol, 1‐kestose, 6‐kestose, and glucofructans with glucose: fructose ratios up to 1:12. With increasing chain length there were increasing proportions of 6–2 over 1–2 linkages. Sugars previously reported but not found here included xylose, arabinose, mannose, galactose, raffinose, fructosyl raffinose, stachyose, melecitose and maltotriose.