Water holding capacity of selected soluble and insoluble dietary fibre

Abstract

A centrifugation method was developed to determine water holding capacity (WHC) of lignin, cellulose, pectin, whole locust bean gum (LBGW) and insoluble locust bean gum (LBGI) and was compared with the AACC method using cellulose, lignin and LBGI. WHC was found to be highest for. LBGW>pectin>LBGI>lignin>cellulose. Solubility and chemical configuration rather than particle size, were the main determinants of WHC. The AACC method tended to overestimate WHC for cellulose, LBGI and lignin.