Water holding capacity of selected soluble and insoluble dietary fibre |
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| Authors: | Nazik N. Boulos Heather Greenfield Ron B. H. Wills |
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| Affiliation: | 1. Department of Food Science and Technology , The University of New South Wales , Sydney, 2052, Australia;2. Department of Food Science and Technology , The University of New South Wales , Sydney, 2052, Australia E-mail: h.greenfield@unsw.edu.au |
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| Abstract: | A centnfugation 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. |
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| Keywords: | Convective drying Freeze-drying Structure collapse Cell wall thickness |
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