In situ enzyme aided adsorption of soluble xylan biopolymers onto cellulosic material.
The functional properties of cellulose fibers can be modified by adsorption of xylan biopolymers. The adsorption is improved when the degree of biopolymers substitution with arabinose and 4-O-methyl-glucuronic acid (MeGlcA) side groups, is reduced. α-l-Arabinofuranosidase (AbfB) and α-d-glucuronidase (AguA) enzymes were applied for side group removal, to increase adsorption of xylan from sugarcane (Saccharum officinarum L) bagasse (BH), bamboo (Bambusa balcooa) (BM), Pinus patula (PP) and Eucalyptus grandis (EH) onto cotton lint. The AguA treatment increased the adsorption of all xylans by up to 334%, whereas, the AbfB increased the adsorption of the BM and PP by 31% and 44%, respectively. A combination of AguA and AbfB treatment increased the adsorption, but to a lesser extent than achieved with AguA treatment. This indicated that the removal of the glucuronic acid side groups provided the most significant increase in xylan adsorption to cellulose, in particular through enzymatic treatment.
['Chimphango|Annie F A|AF|', 'Görgens|J F|JF|', 'van Zyl|W H|WH|']
D000327:Adsorption D001089:Arabinose D002482:Cellulose D032561:Cotton Fiber D005052:Eucalyptus D005965:Glucuronates D006026:Glycoside Hydrolases D003368:Gossypium D028223:Pinus D031786:Saccharum D031787:Sasa D012567:Schizophyllum D014990:Xylans
Enzymes Adsorption Xylan biopolymer Cellulosic material α-l-Arabinofuranosidase α-d-glucuronidase