Roy Betts - Articles and news items
Quality indicator (QI) tests represent the large majority of routine tests currently performed by food microbiology laboratories. Although not necessarily pathogenic, indicator organisms, such as Total Plate Count, coliforms, Escherichia coli, Enterobacteriaceae, yeasts and moulds can alter the appearance and taste of a product when present in large quantities. The enumeration of the microbial flora present indicates the microbiological quality of the raw materials and the finished product, as well as ensuring in-process control. QI tests are therefore of major importance in establishing a consistent level of hygiene during food production and a good quality product.
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