摘要:40 samples of 10 different food were investigated for E. coli by MUG based media, VRB Agar+MUG and Lauril Sulphate Broth+MUG. Standard cultural enumeration technique and dropping technique for determining E. coli titer were applied on VRB Agar+MUG 5 ad 3 tubes methods for MPN technique was also investigated. Results showed that fluoregenic determination of E. coli is a easy and quick method. Inoculation of 3 tubes from each dilution is adequate at MPN enumerations. Dropping method for E. coli titer determination gave satisfactory results.