Abstract: A method for producing microbial intracellular products, and more particularly a method of producing microbial intracellular products from volatile fatty acids derived from organic waste is provided. The method of producing microbial intracellular products from volatile fatty acids in a multi-stage continuous high-cell-density culture bioreactor system includes the steps of: (a) culturing microorganisms in a bioreactor for microbial growth, thereby growing the microorganisms; (b) culturing the grown microorganisms of step (a) in a bioreactor for production of microbial intracellular products, which includes a medium containing volatile fatty acids, thereby producing microbial intracellular products; and (c) recovering the intracellular microbial products from the culture medium of the bioreactor for production of microbial intracellular products.