Medium reagent Dry PA

for microbiologyfor food safety

READY AND EASY TO USE PORTABLE PLATE: PREPARATION OF MEDIUM IS NOT REQUIRED, WHICH ELIMINATES WASTE OF MEDIUM AS WELL AS STERILIZING APPARATUS TO PREPARE THE MEDIUM. DETECTION OF COLONIES ON PLATE IS SIMPLE AND CLEAR. SINGLE COLONIES ON THE PLATE CAN BE ISOLATED FOR FURTHER IDENTIFICATION TESTS DESCRIPTION Compact Dry PA is a ready to use plate for detection of Pseudomonas aeruginosa. Pseudomonas aeruginosa is a rod-shaped, gram-negative, aerobic bacterium that can move in the medium via its unipolar flagella. During the incubation of the Compact Dry PA plate, the growing colonies of P. aeruginosa develop a red color caused by the redox indicator tetrazolium salt contained in the medium. It is distinguished from other pseudomonas by the formation of a greenish-yellow halo around the colony. Scope of delivery 1400 Plates 500 Plates 240 Plates 40 Plates Specifications Incubation time and temperature - 45 - 51 hours at 34 - 36 °C Shelf life - 12 months after manufacturing Instructions Extraction procedure Sample pretreatment Viable count in water or liquid foodstuff Drop 1 ml of specimen (dilute if necessary) on the middle of the Compact Dry plate. Viable count in water using membrane filtration Add 1 ml diluent, e.g. Peptone water or other appropriate diluent according to EN ISO 6887 in the middle of the plate. Filtrate 100 ml of water sample (or more e.g. 250 ml for bottled water) using a 47 mm diameter, sterile membra-ne with 0.45 µm pore size. Directly after the end of filtration apply the filter on the pre-moisturized Compact Dry plate. Take care that the filtration side is upwards.