نتایج جستجو برای: bacillus cereus hn
تعداد نتایج: 59774 فیلتر نتایج به سال:
Bacillus cereus is an important cause of foodborne infectious disease and food poisoning. However, B. cereus has also been used as a probiotic in human medicine and livestock production, with low standards of safety assessment. In this study, we evaluated the safety of 15 commercial probiotic B. cereus preparations from China in terms of mislabeling, toxin production, and transferable antimicro...
background & aim: rubiatinctorum is one of the most well-known medicinal plants whose alizarin and other anthraquinones which are outstanding color agents with some trace of pharmaceutical properties are isolated from it. the objective of this study was to optimize alizarin production in intact plant of r.tinctorum by induction with biotic elicitors. experimental: to increase the synthesis ...
bacteriocins are proteinaceous antibacterial compounds that exhibit bactericidal activity against species closely related to the producer strain. the aim of this research was to investigate the production of bacteriocin by bacillus spp. isolated from intestinal bacterial flora of the caspian frisian roach (rutilus frisii kutum). a bacteriocin produced by the bacterium bacillus cereus strain rf ...
Low Concentrations of Bile Salts Induce Stress Responses and Reduce Motility in Bacillus cereus ATCC 14570 † Simen M. Kristoffersen, Solveig Ravnum, Nicolas J. Tourasse, Ole Andreas Økstad, Anne-Brit Kolstø, and William Davies* Department of Molecular Biosciences, University of Oslo, PB 1041 Blindern, 0316 Oslo, Norway, and Department of Pharmaceutical Biosciences, School of Pharmacy, Universit...
Bacillus cereus strain 03BB87, a blood culture isolate, originated in a 56-year-old male muller operator with a fatal case of pneumonia in 2003. Here we present the finished genome sequence of that pathogen, including a 5.46-Mb chromosome and two plasmids (209 and 52 Kb, respectively).
The draft genome sequences of six Bacillus strains, isolated from the International Space Station and belonging to the Bacillus anthracis-B. cereus-B. thuringiensis group, are presented here. These strains were isolated from the Japanese Experiment Module (one strain), U.S. Harmony Node 2 (three strains), and Russian Segment Zvezda Module (two strains).
The first guidance for applicants on how to assess toxigenic potential of species of the genus Bacillus was developed by the then Scientific Committee on Animal Nutrition (SCAN) and published in 2000 with the title Opinion on the Safety of use of Bacillus species in Animal Nutrition (EC, 2000). The SCAN guidance took as its basis the then existing knowledge on the structure and biogenesis of to...
Bacillus thuringiensis, Bacillus cereus, and Bacillus anthracis are closely related species belonging to the Bacillus cereus group. B. thuringiensis and B. cereus generally produce extracellular proteins, including phospholipases and hemolysins. Transcription of the genes encoding these factors is controlled by the pleiotropic regulator PlcR. Disruption of plcR in B. cereus and B. thuringiensis...
The most commonly used probiotic is usually characterized as gram positive, non motile, non sporulating bacteria that produce lactic acid as their main by product due to fermentation. The Morphological, Biochemical, Acid and Bile salt tolerance, Haemolytic test are used for identification and conformation of probiotic bacteria. Isolated Bacillus cereus was analyzed using the agar diffusion meth...
The prevalence of the hemolytic enterotoxin complex HBL was determined in all species of the Bacillus cereus group with the exception of Bacillus anthracis. hblA, encoding the binding subunit B, was detected by PCR and Southern analysis and was confirmed by partial sequencing of 18 strains. The sequences formed two clusters, one including B. cereus and Bacillus thuringiensis strains and the oth...
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