Impact of the Microbial Biofilms Formation in the Pasteurized Cow's Milk Production Line on the Quality Assurance of the Product, Taif, KSA

This paper work was done for the impact of the microbial biofilms formation in the pasteurized cow's milk production line on the quality assurance (QA) of the product, Taif, KSA. The mean incidence of microscopical examination quality of microorganisms/High Power Field (MOs/HPF) presented in control group (CG) were (00, 00 and 00%) but in tested group (TG) were (100, 41.7 and 25%) within the specimens from (raw milk (RM), production line biofilm (PLB) and pasteurized milk (PM)) respectively. The mean incidence of MOs growth rate in percentage, it was determined as (00, 00 and 00%) from CG and (38.3, 24 and 8.3%) from TG for the specimens of (RM, PLB and PM) respectively. The mean incidence of colony forming unites/ml (CFUs/ml) for MOs, it observed the CG were (00, 00 and 00CFUs/ml) and the TG were (1.3, 0.08 and 0.004X10CFUs/ml) from (RM, PLB and PM) respectively. The present of MOs in RM as a sources which attached to the production line and uncleaning mechanisms which helped to reach that MOs to the PM even with low numbers. It was revealed that PM with low-qualify grades, it is in-need of follow-up the production line maintenance and hygienic measures to keep the PM product in the high-quality grade.