is a mimosa the same as bucks fizz
Buck's Fizz The Buck's Fizz is an alcoholic cocktail made of two parts champagne to one part orange juice. It is very similar to the Mimosa, which also contains champagne and orange juice, but in equal measures. Sparkling wine can also be used.
MacConkey agar By utilizing the lactose available in the medium, Lac+ bacteria such as Escherichia coli, Enterobacter and Klebsiella will produce acid, which lowers the pH of the agar below 6.8 and results in the appearance of pink colonies. The bile salts precipitate in the immediate neighbourhood of the colony, causing the medium surrounding the colony to become hazy.[4][5]