Enzyme production and NP degradation by P. eryngii in SmF
The effects of pH and temperature on NP degradation are shown in Fig. 1. At pH 2.0–5.0, the NP remaining percentage ranged from 64% to 4.1%. As the pH was increased from 5.0 to 9.0, the NP remaining percentage increased from 4.1% to 76.1%. At 20–30°C, the NP remaining percentage was 12–3.8%. At 30–50°C, the NP remaining percentage was 3.8–55%. The optimum pH for NP degradation was 5.0 and the optimum temperature was 30°C.