Premium
MODELLING THE GELLING BEHAVIOUR OF LINSEED POLYSACCHARIDE
Author(s) -
SUSHEELAMMA N. S.,
CHAND NAGIN,
RAJALAKSHMI D.
Publication year - 1991
Publication title -
journal of texture studies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.593
H-Index - 54
eISSN - 1745-4603
pISSN - 0022-4901
DOI - 10.1111/j.1745-4603.1991.tb00501.x
Subject(s) - sucrose , polysaccharide , yield (engineering) , consistency index , consistency (knowledge bases) , rheology , chemistry , food science , mathematics , thermodynamics , biochemistry , physics , geometry
The gelling behaviour of linseed polysaccharide was measured in the presence of sucrose as a function of both polysaccharide and sucrose concentrations. Yield stress, consistency index, and flow behaviour index were determined using the Herschel‐Bulkley model. Transition concentrations of 0.7% for the polysaccharide and 55% for sucrose were found. Yield stress and consistency index increased with both polysaccharide and sucrose concentrations while flow behaviour index decreased. A polynomial model of the third degree on centred data after natural log transformation was found to give a satisfactory fit for the variations in rheological constants. The models for both yield stress and consistency index were a complex power law, and for flow behaviour index a complex semi‐log relationship, on sucrose and polysaccharide concentrations.