Pemeriksaan Cemaran Bakteri Gram Positif (Enterococcus sp. dan Staphylococcus aureus) dan Gram Negatif (Salmonella sp.) pada Susu Sapi Cair Kemasan

Abstract

Bacterial contamination of food is not desirable. Gram-positive bacteria (Enteroccocus sp. and Staphylococcus aureus) and Gram negative (Salmonella sp.) bacteria which are pathogenic bakteria in packaged liquid cows milk. The purpose of this study was to analyze the contamination of Gram-positive (Enteroccocus sp. and Staphylococcus aureus) and Gram negative (Salmonella sp.) bacteria found in packaged liquid cows milk. The research method consisted of random sampling of eight samples from supermarkets and retailers in good condition. The sample was analyzed qualitatively using selective media enterococci agar (EA), Mannitol Salt Agar (MSA), and Brilliant-green Phenolred Lactose Sucrose agar (BPLS). The result of study of eight packaged liquid cow milk samples showed no bacterial growth found on selektive media.