Microbiological examination for dairy purposes - methods for detection and or enumeration of specific groups of microorganisms - enumeration of lipolytic microorganisms - tributyrin agar method 乳品微生物检验.第3部分:微生物特定种群的检测和或计数方法.第4 . 2节:脂解微生物的计数方法.三丁酸甘油琼脂法