the objective of the current study was to evaluate the reproducibility of a reverse transcriptase pcr (rt-pcr)-based technique to differentiate viable and dead salmonella cells in raw and sterilized milk. the microorganism was initially inoculated into the milk samples followed by incubating at 37°c for 4 h prior to inactivation by heat at 80°c for 10 min. the treated and non-treated samples we...

The aim of this study was to investigate the concentration metal residues in cows’ milk and health risks humans from its consumption. In total 37 samples were analysed, namely 32 raw domestic rural collection centres, 5 imported sterilized markets. concentrations chromium (Cr), manganese (Mn), nickel (Ni), copper (Cu) 0.06 20.3 μg/kg, 4.7 64.8 2.16 65.99 μg/kg 0.21 44.7 respectively. Concentrat...

Doctors have long known that infants who are breast-fed contract fewer infections than do those who are given formula. Until fairly recently, most physicians presumed that breast-fed children fared better simply because milk supplied directly from the breast is free of bacteria. Formula, which must often be mixed with water and placed in bottles, can become contaminated easily. Yet even infants...

Introduction: Following dental avulsion, the immediate recommended treatment is tooth replantation to avoid adverse effects. Therefore, the tooth must be stored in a physiological storage medium to preserve the viability of the periodontal ligament fibroblast (PDLF) cells during transportation to dental office. The aim of this study was to determine the effect of several storage media in preser...

1. The influence of trace-nutrient-binding proteins on the growth of coliforms, streptococci and lactobacilli in the gastrointestinal tract was examined in neonatal rabbits delivered germ-free and dosed with an artificial flora (ESL), or born conventionally and dosed with ESL or rabbit faeces. 2. In the stomach and small intestine of both gnotobiotic and conventional animals the counts of colif...

Six different types of bacteria (five strains of lactic acid bacterium and one strain of coliform) isolated from 35-day-old Serra cheese were assayed for proteolytic and lipolytic activities on milk agar and tributyrin agar, respectively. Peptidase and lipase activities were further studied via analytical assaying of free amino acids by spectrophotometry and of free fatty acids by HPLC in in vi...