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Cell spreaders. In microbiology, a cell spreader or plate spreader is a tool used to smoothly spread cells and bacteria on a culture plate, such as a petri dish.. Cell spreaders can be made from glass, plastic, or metal, and come in various shapes.
The plates are incubated for 12 hours up to several days, depending on the test that is performed. Commonly used types of agar plates include: Red blood cells on an agar plate are used to diagnose infection. On the left is a positive Staphylococcus infection, on the right a positive Streptococcus culture.
The CFU/plate is read from a plate in the linear range, and then the CFU/g (or CFU/mL) of the original is deduced mathematically, factoring in the amount plated and its dilution factor. A solution of bacteria at an unknown concentration is often serially diluted in order to obtain at least one plate with a countable number of bacteria.
The pour plate technique is the typical technique used to prepare plate count agars. Here, the inoculum is added to the molten agar before pouring the plate. The molten agar is cooled to about 45 degrees Celsius and is poured using a sterile method into a petri dish containing a specific diluted sample.
A giving plate can be filled with anything: Pick a recipe for classic sugar cookies, Nutella thumbprints, snickerdoodle bars, or decorative pinwheels. You can even make an assortment of treats ...
This is an agar plate page, and I think the streaking references do not belong, or if they do, should be complemented in a separate section by the other methods I mentioned. Icedemon ( talk ) 17:34, 23 March 2008 (UTC) [ reply ]
After years of feeling unwell and overweight, Richard and Jill Wendt decided to embark on a weight loss journey together. The couple lost a combined 118 pounds by following the Mayo Clinic Diet.
6. Great Value Thick and Creamy Mac and Cheese (Walmart) Price: $1 The pinkish cheese powder didn't look promising, but once it cooked down, the sauce did indeed become thick and creamy.