Granada Agar Base 500 grams/bottle

Granada Agar Base is a selective and differential medium for the rapid detection of beta-hemolytic Streptococcus agalactiae (Lancefield group B streptococcus [BGS]) from clinical samples. The most straightforward method for detecting and identifying beta-hemolytic GBS is pigment detection. Streptococcus agalactiae (Lancefield group B streptococcus [BGS]) is an important cause of perinatal and infant morbidity worldwide and can also cause serious infections in adults. The production of an orange carotenoid pigment is a unique characteristic of beta-hemolytic GBS isolated from humans and serves as the basis for several media for the detection and identification of GBS from clinical specimens. Proteose peptone  Nº 3 provide nitrogen, vitamins, minerals and amino acids essential for growth. Soluble starch in the medium acts as a growth factor, probably functioning like a colloid protector and neutralizes toxic products that form during the development of the organisms. It also enhances the pigment formation. Dextrose is the fermentable carbohydrate providing carbon and energy. Magnesium sulphate is a magnesium ion required in a big variety of enzymatic reactions, including DNA replication. MOPS Hemisodium salt and disodium phosphate anhydrous acts as a buffer system. Crystal violet inhibits gram positive bacteria. Bacteriological agar is the solidifying agent. Methotrexate, added to the mixture acts as a pigment enhancer. Colistin sulphate and metronidazole inhibits undesired flora.