Fig. 5From: Purification and characterization of cysteine protease from miswak Salvadora persicapH optimum of miswak protease P1. The reaction mixture contained in 1.0 ml: 3% azocasein, 100 μl of enzyme and 50 mM sodium acetate buffer (pH 4.0–6.5), and 50 mM Tris-HCl buffer (pH 7.0–9.0) and adjusted to 1 ml with distilled water. Each point represents the mean of three experiments ± S.EBack to article page