Common agro-industrial wastes and by-products derived through solid state fermentation (SSF). The common agro-industrial wastes such as rice bran and straw, wheat bran and straw, corn bran, peels of orange, peels of potatoes, oil cakes of peanut, soybean, coconut, barley straw, seeds of soybean, apple pomace when subjected to solid-state fermentation can yield beneficial by-products like