Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Comparison of CFU and GFP-based total counts of P. putida in pasteurized and unpasteurized milk. Asterisks indicate significant (P < 0.05) difference. Error bars, standard errors of the means of three replicates. UHT milk was inoculated with gfp-tagged P. putida (5.8 × 105 ml−1) and heat treated at 63.5°C for 30 min. GFP-based viable counts were measured by epifluorescence microscopy. Solid bars, numbers of GFP-expressing cells per milliliter; open bars, numbers of CFU per milliliter.
