... and arabinogalactan [6,7]. ABNs attack the glycosidic bonds of the a- 1,5-l-arabinan backbone,releasing a mixture of arabinooligosaccharides and l-arabinose [4]. These types of enzyme have attractedmuch ... andde-branched arabinans, and heteropolysaccharidessuch as arabinoxylans and arabinogalactans. Arabinanis composed of a- 1,5-linked l-arabinofuranosyl units,some of which are substituted with a- 1,3- ... 2010)doi:10.1111/j.1742-4658.2010.07870.xEndo-1,5 -a- l-arabinanases are glycosyl hydrolases that are able to cleave the glycosidic bonds of a- 1,5-l-arabinan, releasing arabino-oligosaccharidesand l-arabinose. Two extracellular endo-1,5 -a- l-arabinanases...