Risk from Staphylococcus aureus in informally marketed raw cow milk
Journal Title: Food Science and Applied Biotechnology - Year 2019, Vol 2, Issue 1
Abstract
This study aimed to investigate the presence of Staphylococcus spp. and Staphylococcus aureus in raw cow milk samples taken from peddlers of five regions in Bulgaria. The results showed that all 44 samples tested were positive for Staphylococcus spp. All isolates were tested for coagulase production and subjected to PCR analysis. PCR amplification of 16S rRNA and nuc genes found the presence of Staphylococcus aureus in 23 (52.3%) of a total of 44 raw milk samples. The number of Staphylococcus spp. ranged from 3x102 to 1.08x106 cfu/ml, and that of Staphylococcus aureus from 1.5x102 to 3.19x105 cfu/ml. It is concluded that control over the hygiene of handling and processing raw milk is essential for its safety.
Authors and Affiliations
Desislava Bangieva, Valentin Rusev
Optimization of technological parameters for osmotic dehydration of black chokeberry
Many plant extracts selected for their high in vitro antibacterial activity in microbiological media have a far lower in situ antibacterial activity in foods. This is likely due to interactions of plant antimicrobial mol...
Valorization of cocoa and rose waste for preparation of liqueurs
Chocolate industry generates yearly large quantities of cacao wastes. These by-products pose to the manufacturers’ difficulties for disposal and represent also valuable sources of substances: polysaccharides, polyphenols...
Modelling Electrical Conductivity of the Dilution of Bulgarian Linden Honey
Linden honey is among the most common monofloral types of honey in the region of Bulgaria, and it has no reference values for its electrical conductivity (EC) in the international and national standards. Three variants o...
Effect of electrochemically activated anolyte on the shelf life of cold stored rainbow trout
The sensory, physicochemical and microbiological properties of electrochemically activated anolyte and flake ice chilled rainbow trout (Oncorcynchus mykiss) packed in low-density polyethylene/polyamide bags were studied...
Physical characteristics of extrudates from corn semolina flavored with cocoa shells
Extrusion of corn semolina milled with cocoa shells using a single screw extruder “BRABENDER 20 DN” was carried out. Full factorial experimental 22 was used to investigate the effects of the quantity of cocoa shells and...