Interactions between schizophyllan and curdlan molecules in solutions

Publication date: April 2014 Source:Bioactive Carbohydrates and Dietary Fibre, Volume 3, Issue 2 Author(s): Yiping Cao , Jun He , Yapeng Fang , Katsuyoshi Nishinari , Glyn O. Phillips The polymer–polymer mutual interactions of two structurally similar and bioactive polysaccharides, schizophyllan (SPG) and curdlan (CUD) were investigated by means of intrinsic viscosity measurements. A weak repulsion exists between SPG and CUD molecules in dimethylsulfoxide (DMSO) solutions, which might be attributed to the presence of glucosyl side groups on SPG backbone. On the contrary, in 0.25M aqueous sodium hydroxide (NaOH) solutions, a relatively strong attractive interaction is present and leads to the intermolecular aggregation of SPG and CUD. Graphical abstract
Source: Bioactive Carbohydrates and Dietary Fibre - Category: Food Science Source Type: research