The medicinal fungus Ganoderma lucidum contains many bioactive triterpenoids. ganoderic acid A (GAA) being one of the major ones. The present study explored the microbial biotransformation of GAA. isolating 283 strains of soil actinomycetes and determining their abilities to biotransform GAA with ultra-performance liquid chromatography analysis. https://parisnaturalfoodes.shop/product-category/oreganum-plus-11/