ENVIRA® E-716 is catalase enzyme control, improving the penetration of bleaching agents, and facilitating the bleaching and dissolution of residual lignin. ENVIRA® E-716 is within ranges of 30°C to 70°C, 6.5 pH to 11.0 pH with reaction time 60 – 120 minutes. ENVIRA® E-716 can reduce the consumption of bleaching chemical, increase the pulp whiteness, decrease the available chlorine amount in bleaching wastewater, increase bleaching efficiency, and reduce cost.