However, the greatest spore count and protein concentration
was obtained in the M2 medium (5.90 × 108 ±
0.85 spores/mL and 1.36 ± 0.045 mg/mL of total protein).
The M3 medium also had a high spore count and
protein concentration (4.95 × 108 ± 0.85 and 0.78 ±
0.030). The M4 and M1 media produced the lowest spore