 EAST RUTHERFORD, NJ, Jan. 24, 2023 GLOBE NEWSWIRE -- MamaMancinis Holdings, Inc. NASDAQ: MMMB, a leading national marketer and manufacturer of fresh Deli prepared foods, today announced that management will present at the Diamond Equity Research Emerging Growth Invitational virtual investor conference taking place Wednesday, January 25th at 9:40 a.m. Eastern time. 