Comparison of Five Media for the Isolation of Coliform Organisms from Dehydrated and Deep Frozen Foods

摘要

Summary.A significantly higher number of coliform and faecal coliform organisms were isolated using lactose‐glutamic acid medium than by using lauryl sulphate‐tryptone, lactose, brilliant green‐bile or EE broths. With brilliant green‐bile and lauryl sulphate‐tryptone broth, coliforms/Enterobacteriaceae were isolated less often than with the others. For the detection of faecal coliforms, EE broth proved less good than all other media. All 5 media showed more coliforms/Enterobacteriaceae after 48 h than after 24 h at 30°. Few false positive results were obtained using any of t