Selective Lysine Agar is used for selective isolation and identification of Salmonella in accordance with AOAC. Selective Lysine Agar is recommended by AOAC, APHA and FDA for the isolation and identification of Salmonellae in foods. As per AOAC (The hydrophobic grid membrane filter method), membrane filters are used containing hydrophobic lines, printed in a grid pattern, that serve as barrier to the spread of colonies from one area of the filter to another.