نتایج جستجو برای: total bacterial count
تعداد نتایج: 1106137 فیلتر نتایج به سال:
in this study, the antimicrobial effect of sea cucumber extract (0.5, 1 and 2%) on the microbial population of rainbow trout fillets during refrigerated storage was examined. fillets were stored for 16 days and every 4 days microbial tests (including total bacterial load, pseudomonas, enterobacteriaceae and h2s producing bacteria) were performed on the samples. results showed that there was no ...
Bacterial contamination of drinking water is a major public health problem in rural China. To explore bacterial contamination in rural areas of Beijing and identify possible causes of bacteria in drinking water samples, water samples were collected from wells in ten rural districts of Beijing, China. Total bacterial count, total coliforms and Escherichia coli in drinking water were then determi...
BACKGROUND This study investigated the in vitro and in vivo antibacterial effects of three mouthwashes on supragingival plaque microbiota. The three mouthwashes under study were 0.2% chlorhexidine (CHX), Listerine®, and Persica (PM). Water was used as negative control. METHODS Supragingival plaque samples were collected from 32 patients with gingivitis in the Dental School of Shahid Beheshti ...
With Regulation EC 853/04, the European Parliament and the Council laid down general rules for food business operators regarding the hygiene of foodstuffs. In particular, the regulation established ≤1.500.000 cfu/mL as the maximum-tolerated value for total bacterial count in raw goat milk. Moreover, in order to enhance the hygiene of dairy farms, the Sardinia Region has funded the F measure pro...
the aim of this study was to assess the effects of nucleotide on intestinal microbiota of striped catfish, pangasianodon hypophthalmus . different levels of the nt (0, 0.25. 0.5, 0.75 and 1 % weight per weight, ww -1 ) were added to basal diet and then randomly allocated to triplicate groups of fish with average initial weight (1.52±0.11 g) for 10 weeks. at the end of the experiment, at least 1...
−Monitoring parameters were evaluated for a bioventing process that was designed to treat soils contaminated with diesel fuel. Statistical analyses were conducted to evaluate correlations between total petroleum hydrocarbon concentrations in the contaminated soil and physico-chemical parameters of soil such as microbial counts, dehydrogenase activity, and n-alkane/isoprenoid ratio. The correlat...
Frozen parfried potatoes were thawed and stored at 55, 45, and 34 F (12.8, 7.2, 1.1 C). Significant changes in flavor and texture did not occur at these temperatures until the total bacterial count exceeded 100 million per gram. These sensory changes were produced after 4, 8, and 20 days of storage at 55, 45, and 34 F, respectively. Detectable color change appeared sooner and probably was not o...
Nowadays, consumers become interested to use the substitution of natural preservatives instead of chemical preservatives. It has been proven that pomegranate peel contains large amounts of antimicrobial and antioxidant compounds. In this study, the antimicrobial effect of ethanolic extract of pomegranate peel was evaluated on total microbial count, mold and yeast and Lactobacillus plantarum...
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