Methylene blue (MB) is a synthetic dye widely used in industries that is difficult to degrade in the environment due to its stability. Brown-rot fungus Fomitopsis pinicola is an organism that is known to be able to degrade some organic pollutants such as DDT. aldrin. dieldrin. https://www.mariameetsanna.com/product-category/volumea-voulumizing-conditioning-spray/