Therefore, the aim of this study was to evaluate the changes in phenolic compositions and antioxidant activity through the SSF of plum pomaces (from the juice industry) and brandy distillery wastes (spent fruit pulp and peels) with A. niger and Rhizopus oligosporus. Moreover, the influ- ence of fermentation time on the oil content and major lipid classes in solid state fermented plum kernels was also studied.