Gustavsson_2005_Biomacromolecules_6_196

Reference

Title : Modification of cellulose fiber surfaces by use of a lipase and a xyloglucan endotransglycosylase - Gustavsson_2005_Biomacromolecules_6_196
Author(s) : Gustavsson MT , Persson PV , Iversen T , Martinelle M , Hult K , Teeri TT , Brumer H, 3rd
Ref : Biomacromolecules , 6 :196 , 2005
Abstract :

A strategy for the modification of cellulose fiber surfaces was developed that used the ability of Candida antarctica lipase B (CALB) to acylate carbohydrates with high regioselectivity, combined with the transglycosylating activity of the Populus tremula x P. tremuloides xyloglucan endotransglycosylase 16A (PttXET16A). Xyloglucan oligosaccharides (XGOs) prepared from tamarind xyloglucan were acylated with CALB as a catalyst and vinyl stearate or gamma-thiobutyrolactone as acyl donors to produce carbohydrate molecules with hydrophobic alkyl chains or reactive sulfhydryl groups, respectively. The modified XGOs were shown to act as glycosyl acceptors in the transglycosylation reaction catalyzed by PttXET16A and could therefore be incorporated into high M(r) xyloglucan chains. The resulting xyloglucan molecules exhibited a high affinity for cellulose surfaces, which enabled the essentially irreversible introduction of fatty acid esters or thiol groups to cellulose fibers.

PubMedSearch : Gustavsson_2005_Biomacromolecules_6_196
PubMedID: 15638521

Related information

Substrate Vinyl-stearate

Citations formats

Gustavsson MT, Persson PV, Iversen T, Martinelle M, Hult K, Teeri TT, Brumer H, 3rd (2005)
Modification of cellulose fiber surfaces by use of a lipase and a xyloglucan endotransglycosylase
Biomacromolecules 6 :196

Gustavsson MT, Persson PV, Iversen T, Martinelle M, Hult K, Teeri TT, Brumer H, 3rd (2005)
Biomacromolecules 6 :196