Thermo Scientific™ LAP Disk

Description

• Detect leucine aminopeptidase activity in streptococci and related genera with Thermo Scientific™ Remel™ LAP Disk
• Collman and Ball investigated the use of leucine aminopeptidase (LAP) that helped to identify Gram-positive cocci 1
• Further, Fertally and Facklam 2 used LAP to identify Streptococcus spp
• They found that Aerococcus is a consistent negative strain for LAP whereas Enterococcus and Streptococcus are positive strains
• LAP also helps in identification of Leuconostoc , Pediococcus , Aerococcus and related genera 3
• Activity of the enzyme leucine aminopeptidase can help in identifying streptococci and related genera using the LAP Disk
• Ready to use : Reagent-impregnated disk
• No further preparation necessary
• Easy to read: Visible color change indicates positive and negative test
• Positive test: Color change from pink to red
• Negative test: No color change
• The LAP Disk contains L-leucine-β-naphthylamide as substrate that is hydrolyzed by leucine aminopeptidase and releases β-naphthylamide
• A positive test is indicated when the color of the disk changes from white to pink to red when ρ-dimethyl-aminocinnamaldehyde (PYR Reagent) is added
• Not all products are available for sale in all territories
• Please inquire
• Remel™ and Oxoid™ products are now part of the Thermo Scientific brand.