Parameter Polysaccharide
Light Brown (LB) Dark Brown (DB) Pectin
Intrinsic viscosity (dL/g) 4.62 4.42 3.8
Molecular weight. 7.3×104 7.1×104 6.3×104
Equivalent wt. 5623 5697 803
Refractive index 1.334 1.334 1.334
Seed colour: LB=Light brown and DB=Dark brown respectively.
Table 2: Physical properties of Tamarind seed polysaccharides as compared to
commercial pectin.