Table 1.

The detail conditions (“√” means stable; “×” means unstable) of different EWP-CS complex solutions at different pH values, temperature, biopolymer mixing ratio, total biopolymer concentration and ionic concentration (12:1 ratio of EWP:CS, 0.05% of the total biopolymer concentration, 0 mM/L NaCl or 25 ℃ was applicable if the condition was not defined).

pH values Different conditions	4.0	4.2	4.4	4.6	4.8	5.0	5.2	5.4	5.6	5.8	6.0	6.2	6.4	6.6	6.8	7.0	7.2	7.4	7.6	7.8	8.0
EWP:CS	1:2	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	×	×	×	×	×	×
	1:1	√	√	√	√	√	√	√	√	√	√	√	√	√	√	×	×	×	×	×	×	×
	2:1	√	√	√	√	√	√	√	√	√	√	√	√	×	×	×	×	×	×	×	×	×
	4:1	√	√	√	√	√	√	√	√	√	√	√	√	×	×	×	×	×	×	×	×	×
	6:1	√	√	√	√	√	√	√	√	√	√	√	√	√	√	×	×	×	×	×	×	×
	8:1	√	√	√	√	√	√	√	√	√	√	√	√	√	×	×	×	×	×	×	×	×
	10:1	√	√	√	√	√	√	√	√	√	√	√	√	√	√	×	×	×	×	×	×	×
	12:1	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√
	15:1	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√
	20:1	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√
Total biopolymer concentrations
(%)	0.05	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√
	0.1	√	√	√	√	√	√	√	√	√	√	√	√	√	√	×	×	×	×	×	×	×
	0.5	√	√	√	√	√	√	√	√	√	√	√	√	√	√	×	×	×	×	×	×	×
	1	√	√	√	√	√	√	√	√	√	√	√	√	√	×	×	×	×	×	×	×	×
	2	√	√	√	√	√	√	√	√	√	×	×	×	×	×	×	×	×	×	×	×	×
T (℃)	4	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√
	25	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√
	35	√	√	√	√	√	√	√	√	√	√	√	√	√	√	×	×	×	×	×	×	×
	45	√	√	√	√	√	√	√	√	√	√	√	√	√	√	×	×	×	×	×	×	×
	55	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	×	×	×
NaCl concentration
(mM/L)	0	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√
	5	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√
	10	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√
	20	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√
	30	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√
	40	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√
	50	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√	√