Fig. 2

TEA tolerance test of S. acuminatus to TEA solution at different concentrations: (a) 0.005, (b) 0.05, (c) 0.5, (d) 1, and (e) 2 M, using CO₂ loading levels of 0, 0.4, and 0.8 mol CO₂/mol TEA, respectively, over a period of 7 days. Bar chart indicates cell density. CL = CO₂ loading, uppercase letters represent the effect of the same CO₂ loading levels from day 0 to day 7, and lowercase letters represent the effect of different CO₂ loading levels on the same day. The same letters indicate that the mean values of those data sets are not statistically significantly different (p > 0.05) using Tukey’s post hoc analysis. (Mean \(\:\pm\:\) StDev; n = 3).