1.13.11.27 -20°C, concentrated enzyme solution, 1.0 mg/ml, stable for 6 months or more 1.13.11.27 -20°C, concentrated solution, 1 mg/ml, pH 6.0, stable for 6 months or more 1.13.11.27 -20°C, on long-term storage the enzyme forms polymers, reversal by thiols 1.13.11.27 -60°C, 0.2 M NaCl solution buffered with 10 mM potassium phosphate, pH 6.7, stable for several months 1.13.11.27 -60°C, pH 7.5, 3 months, 20% loss of activity when enzyme concentration is 0.5 g/L in Tris/HCl buffer, no loss of activity after 4 years when enzyme concentration is 5 g/l 1.13.11.27 -60°C, stable for several months 1.13.11.27 4°C, 10 mM sodium acetate buffer, pH 6.0, little loss of activity after 2 months 1.13.11.27 4°C, dilute solutions, 0.1 mg/ml, 100 mM sodium acetate buffer, PH 6.0, stable for up to 2 months 1.13.11.27 storage at room temperature results in residual enzyme activities of ca. 60-80% after 16 h or 40-50% after 30 h.