AskDefine | Define xylan

The Collaborative Dictionary

Xylan \Xy"lan\, n. (Chem.) A gummy substance of the pentosan class, present in woody tissue, and yielding xylose on hydrolysis; wood gum. [Webster 1913 Suppl.]



  1. A polysaccharide, consisting of xylose residues, found in the cell walls of some algae and plants
Xylan is a generic term used to describe a wide variety of highly complex polysaccharides that are found in plant cell walls and some algae.
It is found in almost all parts of the plant.
Xylan is also found in the cell walls of some green algae, especially macrophytic siphonous genera, where it replaces cellulose. Similarly, it replaces the inner fibrillar cell-wall layer of cellulose in some red algae.
CAS number [9014-63-5]
xylan in German: Xylane
xylan in Spanish: Xilano
xylan in French: Xylane
xylan in Japanese: キシラン
xylan in Swedish: Xylan
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