AUTHOR=Wefers Daniel , Tyl Catrin E. , Bunzel Mirko TITLE=Novel arabinan and galactan oligosaccharides from dicotyledonous plants JOURNAL=Frontiers in Chemistry VOLUME=2 YEAR=2014 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2014.00100 DOI=10.3389/fchem.2014.00100 ISSN=2296-2646 ABSTRACT=
Arabinans and galactans are neutral pectic side chains and an important part of the cell walls of dicotyledonous plants. To get a detailed insight into their fine structure, various oligosaccharides were isolated from quinoa, potato galactan, and sugar beet pulp after enzymatic treatment. LC-MS2 and one- and two-dimensional NMR spectroscopy were used for unambiguous structural characterization. It was demonstrated that arabinans contain β-(1→3)-linked arabinobiose as a side chain in quinoa seeds, while potato galactan was comprised of β-(1→4)-linked galactopyranoses which are interspersed with α-(1→4)-linked arabinopyranoses. Additionally, an oligosaccharide with two adjacent arabinofuranose units