M16 Agar (Modified Rogosa Agar)

Modified Rogosa Agar (M16 Agar) is recommended for cultivation and enumeration of lactic Streptococci used in manufacturing of cheddar cheese. Soya peptone, tryptose and HM peptone B provide the essential nutrients like amino acids, minerals etc. Yeast extract supplies vitamin B complex to the lactic streptococci. Dextrose is the fermentable carbohydrate and energy source. Sodium acetate inhibits other contaminating bacteria and suppresses swarming growth. Ascorbic acid provides vitamin C to the organisms.