A new enzyme called laccase was discovered in cyanobacteria that can help remove color from dyes in water. The researchers purified this laccase from Spirulina platensis CFTRI and found it to be a small protein that works best at low pH and moderate temperature. The enzyme is stable in high temperatures and alkaline conditions. It works even better with the addition of certain metals like copper, zinc, and manganese. The purified laccase was able to remove 96% of a specific dye called Reactive blue-4 in just 4 hours, showing its potential for cleaning up wastewater.