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Heating is the most prominent way to kill microbes. Either moist or dry heat can be applied. Heating readily kills the viruses, bacteria, and fungi. Moist heat is thought to kill more efficiently as by degrading nuleic acids and by denaturing enzymes and other essential proteins. It may also disrupt cell membranes. Exposure to boiling water for 10 minutes is sufficient to destroy vegetative cells and eukaryotic spores. Unfortunately the temprature of boilling water is not high enough to destroy bacterial endospores, which may survives hours of boiling. For this moist heat is used which can carried out at temprature more then 100oC and this require the use of saturated steam under pressure. Steam sterlization can be carried out with an autoclave. A device somewhat like a fancy pressure cooker.
What else can I help you with?
What is the use of a refrigerator in microbiology?
it is used to preserve media or chemical reagents. if microbial samples were present, it slows down its metabolism. if the microbial samples were psychrophiles, it enhances their growth.
Why spoilage of pulses and grains is not that usual?
Pulses and grains have low moisture content, which makes them less prone to spoilage compared to fruits or vegetables. Additionally, their hard outer shells act as a protective barrier against microbial growth. Proper storage in a cool, dry place also helps prevent spoilage.
Provide three reasons why the use of aseptic technique is essential when handling microbial cultures in the laboratory?
1. It insures that not contaminating organisms are introduced into culture materials when the latter are inoculated or handled in some manner. 2. It also insures that organisms that are being handled do not contaminate the handler or others. 3. And its use means that no contamination remains after you have worked with cultures.
Which intravenous solutions will most likely promote the growth of microorganisms?
Dextrose solutions (e.g. 5% dextrose in water) are more likely to promote microbial growth due to the presence of glucose, which can serve as a nutrient source for microorganisms. Solutions containing lipids or amino acids can also support bacterial growth under certain conditions. It's important to monitor IV solutions for signs of contamination and use proper aseptic technique during administration.
In microbiology what is the primary use of slants?
Slants are primarily used in microbiology to provide a larger surface area for microbial growth compared to agar deeps or plates. They are commonly used for the maintenance and storage of microorganisms, as well as for the evaluation of motility and oxygen requirements of bacteria.
Can media autoclaved twice?
Autoclaving media twice may result in nutrient loss and changes in pH and composition which can affect microbial growth. It is generally recommended to prepare fresh media for each use to ensure optimal conditions for microbial growth.
What is the use of a refrigerator in microbiology?
it is used to preserve media or chemical reagents. if microbial samples were present, it slows down its metabolism. if the microbial samples were psychrophiles, it enhances their growth.
Is CuSO4-algicide a match in microbiology?
Copper sulfate (CuSO4) is commonly used as an algicide to control algae growth in water systems. In microbiology, the use of CuSO4 as an algicide could indirectly affect microbial communities as algae can contribute to the overall ecological balance in water systems. However, its direct impact on microbial populations may vary depending on the specific system and concentration used.
What is the Use of sodium acetate in microbial fuel cell?
Sodium acetate can be used as a carbon source in microbial fuel cells to provide a substrate for microbial growth and electron transfer. The acetate is metabolized by the microbes, generating electrons that can be transferred to an electrode to produce electricity. Sodium acetate can therefore enhance the performance and efficiency of microbial fuel cells.
What is microbial limit test?
A microbial limit test is done on products to see if thy complies with compendial specifications for microbial quality. The two parts of the test are the quantitative phase and the qualitative phase.
How does the panda use heat control?
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What are two major forms of biological control in organic gardening?
Microbial control by the use of such microorganisms as Bacillus thuringiensis and the release of predators such as the parasitoid wasp Encarsia formosa are two major forms of biological control in organic gardening. Microbial control is particularly effective against bagworms, caterpillars, hornworms, and loopers. Predatory release of Encarsia formosa particularly is effective in controlling greenhouse whiteflies [Trialeurodes vaporariorum].
How can I effectively control the growth of spiny weeds in my garden?
To effectively control the growth of spiny weeds in your garden, you can use mulch to smother the weeds, pull them out by hand, or use a targeted herbicide. Regularly monitoring and maintaining your garden can also help prevent the growth of spiny weeds.
Why you use yeast in microbial fuel cell?
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Use of phosphate buffer in microbial fuel cell?
Phosphate buffer is commonly used in microbial fuel cells to help maintain a stable pH level within the system, as it acts as a buffer solution and resists pH changes. This is important for ensuring optimal microbial activity and performance of the fuel cell. Additionally, phosphate can serve as a nutrient source for the microbes in the system, promoting their growth and metabolic activity.
What is the control for determining what metals are the best conductors of heat?
You can use any metal as a control, like steel. The experiment then becomes, "what metals conduct heat better than steel?"
Use of sodium chloride in nutrient broth?
Sodium chloride is added to nutrient broth to provide essential ions for microbial growth and to help maintain osmotic balance in the medium. It also acts as a buffering agent to stabilize pH levels in the broth during microbial growth.
