Partial depolymerization of pectin by photochemical reaction
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Authors
Burana-osot, Jankana
Soonthornchareonnon, Noppamas
Hosoyama, Saori
Linhardt, Robert J.
Toida, Toshihiko
Issue Date
2010-06-16
Type
Article
Language
ENG
Keywords
Biology , Chemistry and chemical biology , Chemical and biological engineering , Biomedical engineering
Alternative Title
Abstract
Complex heterogeneous polysaccharides that comprise pectin were partially depolymerized by a photochemical reaction using ultraviolet light in the presence of titanium dioxide catalyst. In a period of 6h at pH 7, this UV/TiO(2) process decreased the average molecular weight of pectin from 400kDa to 200kDa. The characterization of the partially depolymerized pectin, which was fractionated by size-exclusion chromatography, was performed by (1)H NMR spectroscopy, and the spectra obtained showed that the resulting oligosaccharides and polysaccharides maintained the intact core structure of pectin. The monosaccharide content and depolymerization profile were determined by high-performance anion-exchange chromatography coupled with pulsed amperometric detection. This controlled photochemical depolymerization technique might be useful for preparation of pectin oligosaccharides as an ingredient in food and pharmaceutical products.
Description
Carbohydrate Research, 345, 1205–1210
Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
Full Citation
Partial depolymerization of pectin by photochemical reaction, J. Burana-osot, N. Soonthornchareonnon, S. Hosoyamac, R. J. Linhardt, T. Toida, Carbohydrate Research, 345, 1205–1210, 2010.
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PubMed ID
DOI
ISSN
86215