BBI Solutions, Cardiff, UK, has launched porcine liver esterase (PLE), a new enzyme for urinalysis, now available to sample. PLE is used in urinalysis controls as a partial substitute for human leukocyte esterase and can provide a cost-effective alternative. It acts on water-soluble carboxyl esters containing short-chain fatty acids. Assay control manufacturers can use PLE to detect the presence of white blood cells and other abnormalities associated with an infection of the urinary tract. The enzyme is BBI’s first in the urinalysis space, and extends the company’s product portfolio to cover an even wider range of controls. For more information, visit BBI Solutions.