A rapid impedimetric determination for total, mesophilic and psychrotrophic counts in raw milk showed correlations (between impedance detection times and standard plate counts) of -0.96, -0.95, and 0.96, respectively. Mesophiles were most often seen as the predominant population, the impedimetric method allowed for these samples containing above 1.0 x 105 CFU/mI to be screened out within 4 hr. Psychrotrophic levels of 1 x 105 CFU/ml and above were screened within 21 hr, while total concentration of samples containing above 1 x lo5 CFU/ml were screened within 16 hr.
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