microorganisms. Another comparison can be made when describing pigmented colonies. In this experiment‚ E.coli form a circular colony with convex elevation‚ entire margin and mucoid texture. While Salmonella sp and Shigella sp both form filamentous colony and filamentous margin with dry texture. The elevation for Salmonella sp and Shigella sp colony are flat and raised respectively. Besides that‚ Pseudomonas aeruginosa form irregular colony‚ reaised elevation‚ lobate margin‚ and wet texture. Other bacteria
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The effects of black tea on the growth of E. coli bacteria cultures Kierstin Barker‚ Melissa Bischak‚ Jackie Tyszkiewicz‚ Errin Enany September 25‚ 2012 Abstract: This study was carried out in order to investigate whether black tea has antimicrobial properties as stated in Steven Johnson’s The Ghost Map. If tea does have antimicrobial properties‚ then it could aid in warding off waterborne diseases. We believed that if black tea is steeped in boiled water‚ then the amount of bacteria exposed
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Conclusion Cadbuty company had taken necessary ways to confront these issues. Cadbury company immediately eliminated two products from the shelves which were prohibited for Muslim that contained non-halal ingredients (Hafiz‚ 2014). Cadbury Confectionery Malaysia recalled related Cadbury’s products rapidly and JAKIM (Department of Islamic Development Malaysia) released a statement regarding eliminating and revoking the halal certification for those products as non-compliance with the requirement.
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Part A There are two important questions that I would ask myself before deciding whether or not to blow the whistle. If I do blow the whistle‚ will I be able to live with the consequences of revealing the food safety problems that are present at Delectables Corp.‚ knowing that it may hurt the company and the people that work there? On the other hand‚ if I don’t blow the whistle‚ will I be able to live knowing about the food safety concerns and not doing anything about them to save the face of
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Revealed Beginning as early as 6‚000 years ago. The ability to digest milk was slowly gained some time between 5000-4000 B.C.E by the spread of genetic mutation called lactase persistence‚ meaning it’s an inherited trait in which levels of lactase do not decline after weaning. Despite that milk is a nutrition to help us grow as adults. What is the real truth behind milk and the intake used for humans? Here are the ingredients added to cow’s milk: A Veritable Hormone Cocktail: including pituitary
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3 benefits of staying abstinent . 3 things long term things with sti’s people effect our decisions Healthcare providers-provides medical care and influence wellness decisions Law and government-maintain safety‚ fairness‚ and order Media-provide people with important information and may influence thoughts and beliefs Family-primary source of information‚ values‚ and support Schools and education-support the individual goals of community members Faith community-influence beliefs and values
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mutagenic. After the Spot-Overlay Ames Test we then wanted to know at what concentration Diet Coke became mutagenic so we used the Quantitative Ames test. The quantitative Ames test is similar to the spot-overlay Ames test‚ except that the mutant Salmonella tymphimuium (which cannot composite histidine) is treated with various concentrations of the mutagen Diet Coke to view which sections of the Davis Minimal Agar Plate form colonies (Bjeldanes‚ et al. 1982). Mutagenicity has been known to be carcinogenic
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at the most mutagenic. The hypothesis of this experiment was as the concentration of tobacco increases‚ the growth of bacteria increases. The control for this experiment had a UV positive and a UV negative. Four different tobacco concentrations‚ Salmonella Typhimurium of strain 1538 were incubated for 24-72 hours to observe bacterial growth. At a 100% bacterial growth was at its greatest number of colonization and at 5% the mutagen was at its least. These results reflected that tobacco has the ability
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phytochemicals. It is used as sugar substitute. The extracts from leaves are used for the microbial assay and study the antimicrobial activity. The microbes used for the testing the activities are E.coli‚ Staphylococcus aureus‚ Bacillus subtilis‚ Salmonella typhi‚ Aspergillusniger‚ Candida parapsilosis‚ Trichophyton rubrum. With different concentrations of the extracts starting from 2.5µg/ml‚ 5.0µg/ml‚ 7.5µg/ml‚ 1.0µg/ml and the highest activity is shown by Staphylococcus aureus and Candida parapsilosis
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says the USDA has backed off the idea that meat and poultry should be washed or rinsed—in fact‚ the organization’s website says there’s no need to do so. “Sometimes you may buy a chicken‚ and it has salmonella. If you cook it thoroughly‚ it would kill it‚” Cliver says. “Washing it might spread the salmonella around.” 2. A Greasy Range Hood and Filter. Captain Peggy Harrell of the Plano Fire Department in Texas says grease that has accumulated under your range hood and on the filter is “just the kind
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