According to the International Dairy Federation, the quality of raw milks shall be evaluated by the determination of "total" bacterial counts, or standard plate count (SPC); after serial dilution of the milk samples, the SPC is determined on Plate Count Agar (PCA) by the "pour plate" method; the viable bacteria are enumerated after aerobic incubation for 2 or 3 days, at 32 °C or 30°C respectively.

Overseas and imported mineral waters were subjected to visual examination, tested for standard plate count and heterotrophic bacteria, and also analyzed to determine the concentrations of several anions and cations. Some products showed turbidity or color, and several had standard plate count and/or heterotrophic bacteria. One imported natural mineral water product had a high level of standard ...

The present study was undertaken to evaluate the microbiological quality of indigenous dahi from eastern Nepal. A total of 39 indigenous dahi samples were collected from sixteen districts of eastern Nepal and analyzed. Results revealed the mean yeasts and mould count to be 20.5×10±7503, coliform count 65±42, S. aureus197±65 and total viable bacterial count 227×10±17250 cfu/g. Total viable bacte...

The influence of nature of the feed sample, feeding frequency and pore size on the influx of bacteria and protozoa into synthetic fiber bags suspended in the rumens of sheep fed different diets was studied. Counts of total culturable bacteria in bags with a pore size of 10 microns were less than 30% of the ruminal counts for animals that were fed the lucerne hay and high-roughage diets. The max...

The purpose of this investigation was to evaluate the efficacy of a commercial bacterin (Lysigin ® ) in reducing the prevalence of staphylococcal intramammary infections (IMI) and lowering somatic cell counts (SCC) in a commercial dairy goat herd. Does were sampled over a 4-month period prior to vaccination to establish a baseline for the prevalence of mastitis, SCC, and bulk tank bacteria coun...

AIM The aim of this study was to evaluate in vitro the antibacterial effect of ozone on suspension of three different bacteria inoculated in prepared canals of extracted human teeth. MATERIAL AND METHODS Ozone was produced by special KP syringe of high frequency ozone generator Ozonytron (Biozonix, München, Germany) from aspirated atmospheric air by dielectric barrier discharge and applied th...

BACKGROUND Transmission of human pathogens can be occurred via inert objects. Paper currency is a further common contact surface whereby pathogens can be transferred within a population although the significance remains unknown. Hence, the aim of the present study was to investigate microbial populations associated with Iranian paper currency. METHODS This study was carried out by getting 108...

Intrauterine contraceptive devices (IUCDs) are thought to cause pelvic inflammatory disease by allowing vaginal bacteria to pass into the uterus along the tail of the device. In this study the uterine cavities of 22 women using an IUCD were examined by a multiple biopsy technique. All five uteruses with a tailless IUCD were sterile but 15 out of 17 with a tailed device contained bacteria. The b...

The aim of this investigation was to study the impact various reaction parameters on wastewater taken from Al-Wathba water treatment plant Tigris River in south Baghdad, Iraq with sodium hypochlorite solution. studied were dose, contact time, initial fecal coliform bacteria concentration, temperature, and pH. In a batch reactor, different concentrations solution used disinfect 1L water. amount ...

The aim of this study was to examine the effect of ozone gas on the remaining bacteria after chemomechanical instrumentation of tooth root canal. The study was carried out at the Department of Endodontics and Restorative dentistry, School of Dental Medicine, University of Zagreb. A total of 37 tooth root canals from 23 teeth (10 incisors, 2 canines, 8 premolars and 3 molars) with a diagnosis of...