Quality Analysis of Microbial Culture Media for Food Hygienic Detection

Abstract:

To explore the equivalence of ISO culture media standards for domestic culture media quality control, fungus culture and chromogenic media were chosen from four domestic and foreign manufacturers, compared in quality control strain productivity ratio and bacteriostatic effect. The productivity ratioes of productivity reference stains on fungus culture are all above 0.5, and that on chromogenic media are all above 0.7, which comply with ISO international standards. After statistical analysis of these results, there are no significant difference among these culture media (P>0.05) chosen from the four culture media manufacturers in this study, which provide basic materials and basis for new national standard that is about to published to equivalent adopting ISO culture media standards.

Key words:Culture media, Productivity ratio, Bacteriostatic effect, Quality, Food hygiene