Definition of xylan in English:


Pronunciation /ˈzīlan/ /ˈzaɪlæn/


  • A polysaccharide found in plant cell walls that hydrolyzes to xylose.

    ‘Among plant cell wall hemicellulose components, arabinoxylans and xylans are widely distributed.’
    • ‘Individual cells are also supplied with cell walls, usually of cellulose or xylan (another polysaccharide) fibers.’
    • ‘In the PCW, uronic acid residues are found as constituents of xylans, pectins, glucuronomannans and arabinogalactan-proteins.’
    • ‘The Thermotogales make their living by scavenging biomolecules, including amino acids, glucose, sucrose, starch, cellulose, and xylan.’
    • ‘Many species of Macrotermitinae degrade cellulose internally, with assistance from the fungus; in other species the fungus breaks down the plants' xylan and lignin.’
    • ‘In bottom water, in contrast, pullulan, arabinogalactan, and fucoidan were barely hydrolyzed, whereas chondroitin sulfate, xylan, and laminarin were hydrolyzed relatively rapidly.’