Antimicrobial drugs Antibiotic Inhibitor Antimicrobial drugs test
Characteristics:
Broad spectrum antibiotic inhibition test for the dairy industry
Detect beta-lactams, tetracycline’s and other antimicrobial drugs near
regulatory limits
The most sensitive inhibition test for antimicrobial drugs in milk
A one-Step test – only to add 50ul milk
Ideal for larger volume testing
Multiple incubator options
MTUSBIO® Blue Yellow-Antimicrobial drugs PRINCIPLE:
MTUSBIO® BY-Antimicrobial drugs test is a microbial inhibition assay,
which detects inhibitors, such as antibiotics, in milk. Antibiotics are the
most common inhibitors found in raw milk. The test consists of a single
service well that contains pre-measured bacterial spores‡, media, and a pH
indicator. Reagents are unit dosed and compartmentalized to ensure
uniformity. This prevents unintended contamination and reagent loss.
MTUSBIO® Blue Yellow-Antimicrobial drugs test has broad spectrum of
sensitivity to beta-lactams, sulfonamides, aminoglycosides and especially
tetracycline’s. Development sensitivity to tetracycline’s makes it the first
inhibition test to closely match EU MRL levels.
HOW IT WORKS
The starting color in the well is blue/purple. Milk is added to the micro-well
and incubated. Spores germinate and grow, generating acid, which is
indicated by color change to yellow. If antibiotics are present in the milk,
microbial growth is retarded and or inhibited so that no acid is generated.
Thus, antibiotic positive samples remain blue.
MTUSBIO® Blue Yellow-Antimicrobial drugs test
LIMIT OF DETECTION
Antimicrobial
Drugs Name
MTUSBIO® Positive
Concentration
(µg/kg)
EU MRL
(µg/kg)
Amoxicillin 2 - 3 4
Ampicillin 2 - 3 4
Cefalexin 60 - 100 100
Cefalonium 10 - 15 20
Cefazolin 6 - 10 50
Cefoperazone 20 - 30 50
Cefuroxime 20 - 25 50
Ceftiofur † 50 - 100 100/100
Cephapirin 4 - 6 60
Cloxacillin 10 - 20 30
Dapsone 1 - 2 0
Dicloxacillin 10 - 20 30
Erythromycin 100 - 150 40
Gentamicin 75 - 100 100/200
Neomycin 75 - 150 500/1500
Oxacillin 8 - 10 30
Oxytetracycline 75 - 100 100/100
Penicillin G 2 - 3 4/4
Sulfadiazine 80 - 100 100
Sulfadimethoxine 50 - 75 100
Sulfamethazine 75 - 125 100/25
Tetracycline 75 - 100 100/100
Tylosin 20 - 30 50
