Fig. 4From: Purification and biochemical characterization of two laccase isoenzymes isolated from Trichoderma harzianum S7113 and its application for bisphenol A degradationEffect of temperature on the stability of T. harzianum S7113 purified laccase isoenzymes a Lac A, and b Lac B. To ascertain the enzymes’ thermal stability, they were incubated for three hours at 40, 50, 60, and 70 °C in a 0.05 M sodium phosphate buffer (pH 7.0). Then, using ABTS as the substrate, the residual activity was quantifiedBack to article page