Table 2.

Summary of gums characteristics in distilled water and in 2 mM calcium chloride.

Gums	Parameters
	${\mathbf{b}}_{{\mathbf{H}}_2\mathbf{O}}$	${\mathbf{b}}_{\mathbf{C}\mathbf{a}\mathbf{C}{\mathbf{l}}_2}$	Charge (mmol/g)	${\left[\mathbf{\eta }\right]}_{{\mathbf{H}}_2\mathbf{O}}$ (dl/g)	${\left[\mathbf{\eta }\right]}_{\mathbf{C}\mathbf{a}\mathbf{C}{\mathbf{l}}_2}$ (dl/g)	Degree of contraction
Alginate	0.88 ± 0.02a	1.16 ± 0.09cd	-4.68 ± 0.24b	8.45 ± 0.44b	7.56 ± 0.35d	1.12 ± 0.11a
T. cordifolia	1.09 ± 0.02d	1.42 ± 0.06f	-3.60 ± 0.86bc	18.29 ± 0.64e	5.63 ± 0.54b	3.25 ± 0.43d
B. thermifolia	1.16 ± 0.04e	1.26 ± 0.04e	-6.67 ± 0.97a	33.76 ± 1.32g	13.66 ± 0.36e	2.47 ± 0.17c
I. gabonensis	0.94 ± 0.03b	1.18 ± 0.12de	-3.28 ± 0.88bc	7.46 ± 0.31b	4.50 ± 0.08a	1.66 ± 0.10b
B. obscura	1.39 ± 0.04g	1.01 ± 0.05ab	-1.96 ± 1.22c	3.55 ± 0.22a	5.08 ± 0.11ab	0.70 ± 0.06a
C. sesamoides	1.20 ± 0.02f	1.40 ± 0.04f	-8.31 ± 1.67a	21.26 ± 0.87f	6.99 ± 0.60cd	3.04 ± 0.39d
C. olitorius	1.19 ± 0.02ef	1.07 ± 0.12bc	-2.73 ± 0.62c	15.47 ± 0.88d	7.32 ± 0.91cd	2.11 ± 0.39c
A. digitata	1.01 ± 0.03c	0.93 ± 0.02a	-7.81 ± 1.06a	11.00 ± 0.18c	6.70 ± 0.11c	1.64 ± 0.06b

a, b, c … Values on the same column with the same letter as superscript are not significantly different (p ≤ 0.05).

${\text{b}}_{{\text{H}}_2\text{O}}$: power law coefficient of the gum specific viscosity as a function of the concentration in water; ${\text{b}}_{{\text{CaCl}}_2}$: power law coefficient of the gum specific viscosity as a function of the concentration in 2mM CaCl₂ solution; Charge: expressed as the quantity of protons needed to neutralize one gram of gum; ${\left[\text{η}\right]}_{{\text{H}}_2\text{O}}$: intrinsic viscosity of the gum in water; ${\left[\text{η}\right]}_{{\text{CaCl}}_2}$: intrinsic viscosity of the gum in 2mM CaCl₂; Degree of contraction: the ratio of intrinsic viscosity in water on the intrinsic viscosity in calcium chloride solution.