Figure 3. Pellet morphology (A) and diameters (B) of G. lucidum QRS 5120 for exopolysaccharide (EPS) production in repeated-batch fermentation at broth replacement time point (BRTP) Day 13 and broth replacement ratio (BRR) of 75% using initial media pH 4, 100 rpm, temperature 30 °C, and at 5-day interval between each cycle. All other fermentation media compositions were all the same [(g/L): Glucose 30, KH₂PO₄ 0.5, K₂HPO₄ 0.5, MgSO₄7H₂O 0.5, YE 1, NH₄Cl 4]. R1–R7 means fermentation repetition in cycles.