Rate this Article
AOAC International has approved the Bruker MALDI Biotyper solution for two new Official Methods of Analysis (OMA) for the confirmation and identification of pathogenic and non-pathogenic bacteria. The two methods include some of the most common food pathogens, including Salmonella spp, Cronobacter spp, Listeria spp and Listeria monocytogenes, as well as the identification of other Gram-negative and Gram-positive bacteria. Confirmation and identification can be performed directly from several selective culture media that are widely used in food microbiology, or from any non-selective culture plates.
Supplier
Rate this Article
Technique




![Targeted proton transfer charge reduction (tPTCR) nano-DESI mass spectrometry imaging of liver tissue from orally dosed rat (Animal 3). a) optical image of a blood vessel within liver tissue. b) Composite ion image of charge-reduced haeme-bound α-globin (7+ and 6+ charge states; m/z 2259.9 and m/z 2636.3 respectively, red) and the charged-reduced [FABP+bezafibrate] complex (7+ and 6+ charge states; m/z 2097.5 and m/z 2446.9 respectively, blue). c) Ion image composed from charge-reduced haeme-bound α-globin (7+ and 6+ charge states) showing abundance in blood vessels. d) Ion image composed from charge-reduced [FABP+bezafibrate] complex (7+ and 6+ charge states) showing abundance in bulk tissue and absence in the blood vessel. Reproduced from https://doi.org/10.1002/ange.202202075 under a CC BY licence. Light and mass spectromert imaging of tissue samples](/sites/default/files/styles/thumbnail/public/news/MSI%20drug-protein%20complex-w.jpg?itok=CBNIjyYl)




