Galactoglucomannan

Galactoglucomannan is a water-soluble hemicellulose, consisting of galactose, glucose and mannose. Many softwood species, e.g. Norway spruce are rich of galactoglucomannans and can contain it up to 10-20% ^[1]

Structure

Structure of galactoglucomannan

Galactoglucomannan consists of a backbone of randomly distributed (1→4)-linked mannose and glucose units with (1→6)-linked galactose units attached to mannose units. The hydroxyl groups in locations C2 and C3 in mannose are partially substituted by acetyl groups.

References

1. Willför, Stefan; Sundberg, Kenneth; Tenkanen, Maija; Holmbom, Bjarne (2008). "Spruce-derived mannans -- a potential raw material for hydrocolloids and novel advanced natural materials". Carbohydrate Polymers. 72 (2): 197–210. doi:10.1016/j.carbpol.2007.08.006.