Publication: Partial depolymerization of pectin by a photochemical reaction
Issued Date
2010-06-16
Resource Type
ISSN
00086215
Other identifier(s)
2-s2.0-77953131696
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Carbohydrate Research. Vol.345, No.9 (2010), 1205-1210
Suggested Citation
Jankana Burana-osot, Noppamas Soonthornchareonnon, Saori Hosoyama, Robert J. Linhardt, Toshihiko Toida Partial depolymerization of pectin by a photochemical reaction. Carbohydrate Research. Vol.345, No.9 (2010), 1205-1210. doi:10.1016/j.carres.2010.04.007 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/28687
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
Partial depolymerization of pectin by a photochemical reaction
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 6 h at pH 7, this UV/TiO2process decreased the average molecular weight of pectin from 400 kDa to 200 kDa. The characterization of the partially depolymerized pectin, which was fractionated by size-exclusion chromatography, was performed by1H 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. © 2010 Elsevier Ltd. All rights reserved.