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Bestrahlung von Stärke. Untersuchung der niedermolekularen Spaltprodukte
Author(s) -
Scherz H.
Publication year - 1971
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.19710230802
Subject(s) - chemistry , monosaccharide , furan , starch , irradiation , sugar , mass spectrum , thin layer chromatography , extraction (chemistry) , chromatography , organic chemistry , mass spectrometry , physics , nuclear physics
Irradiation of Starch. Study of the low molecular degradation products. Potato starch was irradiated with 10 MeV electrons. (dose: 5 Mrad). After extraction and separation by twodimensional thin‐layer chromatography 16 substances had been obtained. By colour reaction they could be classified into monosaccharides, deoxycompounds, sugar anhydrides, furan‐ and probably also pyrone compounds. The gaschromatographic separation of the trimethylsilylethers of the substances obtained after reduction of the extract with potassiumboronhydride gave approximately 25 compounds; masspectra were taken of the main peaks. The position of the carbonyl groups in the individual compound was obtained by reducing the extract with sodiumborondeuterid and by observation of the mass‐shift of the single fragmentations in the mass spectra. Their evaluation revealed the presence of aldoses, deoxysugars, deoxycarbonylsugars and cyclic compounds, probably dihydropyrones and dihydrofuranes.