Description
Urea is the most important product of protein metabolism in mammals and the most abundant organic compound in their urine. Ammonia is mainly produced by microbial protein catabolism of organic materials. Therefore, these analytes may be used as reliable quality indicators for food products such as fruit juice, milk, cheese, meat and seafood. Urea and/or ammonia may also be sued as indicators of the presence of faeces, urine and microorganisms in water