Fig 4. Effects of added-back ingredients on the algicidal rate and growth of Alcaligenes aquatilis strain F8 immobilized with acid-treated bran.

(a) Ingredients added back to acid-treated bran during the immobilization of strain F8. Control (‘C’): no addition; ‘C + Starch’, ‘C + Cellulose’, and ‘C + Vitamins’ represent the addition of starch, cellulose, or vitamins, respectively. (b) Ingredients added back as sole carbon sources. Data represent the mean of three independent experiments with the SD indicated by an error bar. Different lowercase letters above the columns represent statistically significant differences in growth of strain F8 under different treatments, and in algicidal rate among treatment groups at different treatment times for strain F8 against Microcystis aeruginosa (p < 0.05).