MICROBIOLOGICAL COMMUNITY DURING SHELF LIFE AND SPOILAGE OF BEEF MEET AND PLANT-BASED BURGER IN BULGARIA. - FASULKOVA, Rumyana; BANGIEVA, Desislava; OROZOVA, Petya; KYUCHUKOVA, Ralitsa; CHIPILEV, Nikolay; STOYANCHEV, Todor (Scientific Papers. Series D. Animal Science, 2025)