Ligninolytic enzymes are known as extracellular enzymes produced by the white rot fungi class of basidiomycetes. One of the most well-known fungi of the white rot fungus is Pleurotus ostreatus. The aim of this study to calculate the activity of ligninolytic enzymes in the growth media of Pleurotus ostreatus and their application in decolorization of dye colour. https://herbsdailyes.shop/product-category/beta-sitosterol/