Table 2.

Intrinsic viscosity and water solubility of crude and carboxymethyl gums.

Gum type	[η]H A (dlg−1)	[η]K B (dlg−1)	Water solubility (%)
Tamarindus indica
Crude gum	4.45	4.44	23.7
Carboxymethyl gum	6.03	6.02	90.1
Cassia fistula
Crude gum	10.72	11.08	41.9
Carboxymethyl gum	11.61	12.05	95.4

^A[η]H is the intrinsic viscosity from Huggins’ plot (Eq. 1) and ^B[η]K is the intrinsic viscosity from Kraemer’s plot (Eq. 2).