What is Pasteurization?
Q: How is this medium (the Mitis Salivarius medium) differential? What components make it a…
A: A growth medium or culture medium is the solid, liquid, or semi-solid, which is designed to support…
Q: Why Do not add more than 2 drops of copper sulfate in Biuret reagent?
A: There are several biochemical tests to identify the presence of protein in a sample. There are tests…
Q: What is hyperbaric oxygen therapy, and why is it used to treat wounds infected with C. perfringens?
A: Clostridium perfringens is a Gram-positive bacteria, basically in the shape of rods, anaerobic in…
Q: What group of microorganisms is responsible for producing fermented beverages? What microorganism…
A: Fermentation is defined as the metabolic process in which yeasts, bacteria, or other microbes are…
Q: Before using the EnteroPluri-Test System, what test must be performed to confirm the identity of…
A: Bacteria are single-celled microscopic organisms that thrive in diverse environments. Bacteria…
Q: Find the amount of dehydrated medium needed to prepare 15 BUTTS, 20 SLANTS, and 25 BUTT-SLANTS.
A: Slants, Butt-slants, and butts are different types of media prepared for bacterial growth. Slants…
Q: What aare Agrobacterium tumefaciens ? why they are used ?
A: BASIC INFORMATION MICROBES They are the unicellular organisms which can not seen by naked eyes…
Q: What is the difference between Dry and Wet Celloidin Method?
A: Celloidin method is a histopathological technique of tissue impregnation and embedding that helps to…
Q: Which disinfectant is the most effective? and why? Which disinfectant(s) is (are) bactericidal? and…
A: Disinfectant A is most effective as there is no growth of salmonella choleraesuis at dilution 1:2…
Q: What is the logic behind testing for E. coli to detect fecalcontamination of water?
A: Bacteria are unicellular prokaryotic organism that maintains a definite shape since it contains the…
Q: What would be the expected out come of a Nitrate reduction test If the bacteria is a pathogenic…
A: Nitrate Reduction Test is used to determine the ability of an organism to reduce nitrate (NO3) to…
Q: What is the purpose of the crystal violet, bile salts, and neural red in MacConkey Agar media?
A: MacConkey Agar or MAC is a culture medium. It is a selective and differential medium designed for…
Q: What is a pure culture?
A: Introduction Culture is referred to th process of growing the cell outside the animal or plant body…
Q: Can the resazurin reduction test be used to determine whether a milk is properly pasteurized or…
A: Pasteurization is a process that helps in keeping the milk fresh and helps in avoiding the…
Q: Why are nitrates added to cured meats?
A: Nitrates can be defined as the set of compounds that are indulged in nitrogen and oxygen molecules.…
Q: Why is picric and tannic acids used in treating burns and diarrhea?
A: Picric acid is a potent explosive that is a derivative of phenol. Picric acid is a chemical compound…
Q: What is the effect of moist heat and dry heat? Define TDT and TDP. What is the minimum sterilization…
A: Sterilization is defined as a technique which is used for complete removal, killing or deactivation…
Q: What is the purpose of adding dishwashing liquid into the banana mixture? What reagent is used in…
A: DNA extraction is the method of isolation of genetic material ( DNA ) from plants , animals or any…
Q: Why does the nitrate reduction tube turn red after the addition of zinc?
A: Nitrate reduction test is used to find the bacteria who have the ability to reduce the nitrate.
Q: What are the most common lab tests for humans using a liquified fecal sample?
A: Sometimes abnormalities in the stomach are manifested by diarrhea or bleeding, etc. It may be mild…
Q: What is the Key Gross Morphology Characteristics on different Primary Plating Media for Enterococcus…
A: Various agar medium are used for plating in order to grow different gram positive and gram negative…
Q: How does the concentration of H+ change when a culturemedium at pH 5 is adjusted to pH 9?
A: pH is the measure of acidity or basicity of a solution. If pH of a solution is 7, then it is…
Q: What is aquaporins ? Why it is used ?
A: Answer- There are many intergral proteins that are embedded in the plasma membrane.
Q: What is the primary reason that wine is pasteurized?
A: Food technology is a branch of science which deals with various aspects of food science such as…
Q: hat are the components of a carbon-free broth or minimum medium for Bacillus subtillus ? An example…
A: Nutrient media is used for the growth of different microorganisms in laboratory.
Q: How does pasteurization affect the number of bacteria present in milk?
A: Pasteurization: It is a process which involves heating liquids at high temperature for a particular…
Q: What are the differences between bacteriostatic and bacte-ricidal disinfectants?
A: Bacteriostatic refers to the property of preventing the growth of the bacteria, while the…
Q: Is colistin Naladixic acid agar selective and/or differential? Explain
A: C-CNA (Columbia-CNA Agar) is a form of selective media that favours Gram-positive bacteria.
Q: How do microorganisms in a chemostat differ frommicroorganisms in a batch culture?
A: Microbial culture refers to breeding or growing of microorganisms in laboratory-controlled…
Q: What is the Gram Stain reaction for Enterococcus Faecalis and Proteus mirabilis?
A:
Q: What are the primary purposes of pasteurization, and what isultrapasteurization?
A: The method of killing the pathogenic microorganisms such as viruses, bacteria, spores, and fungi is…
Q: Using aseptic techniques, list the general procedure of inoculating a broth from a plate culture.
A: Aspetic techniques that you should follow during inoculating a broth from a plate culture are:…
Q: In a Triple Sugar Iron test, what are the results and (what should they look like) for the bacteria:…
A: triple sugar ion test or TSI is a confirmatory as well as a differentiative biochemical test which…
Q: What is the temperature for pasteurisation?
A: There are several methods to preserve food products and beverages or to increase their shelf life,…
Q: cal is utilized as the reagent known as VP-B?
A: The Voges-Proskauer (VP) test is generally used to test if an organism produces acetyl methyl…
Q: operties of the Snyder deep media allow us to detect susceptibility to dental caries?
A: Dental caries (tooth decay) is injury to enamel of tooth that be converted into little holes or…
Q: Explain why it is important to wash the wells with PBS between the additions of each reagent?
A: ELISA is a enzyme linked immunosorbent eassay. It is a process to get the measurements of antigens…
Q: systematic alkalinizer
A: Alkalinizers: these are the drugs that helps in reducing the acidity. These drugs have high pH and…
Q: What are several microbial targets of pasteurization?
A: In the living world, we see a large number of microorganisms, animals and plants. These organisms…
Q: please explain Bacillus cereus and its shape, arrangemnet, why indole test, starch hydrolysis test,…
A: The infection caused by B. cereus is usually self-limiting and does not require treatment. The…
Q: Why is the temperature of pasteurization at 60°C?
A: Pasteurization was invented by a French Scientist called Louis Pasteur. It was first used in 1864.…
Q: What is the purpose of the different types of media (solid, semi-solid, broth)?
A: Culture medium is the medium consist of mixture of nutrients and substances which are required for…
Q: What is "BHI" agar and what is it used for? What is "Sabouraud Dextrose" agar and what is it used…
A: There are various types of growth media are used for cultivating cells ranging from prokaryotic to…
Q: Why is sulfate (SO42-) added to a Winogradsky column?
A: Winogradsky developed the columns as a means of enriching sediments and soils for microbes.…
Q: What are the different types of Pasteurization?
A: Pasteurization is the process of heat processing the liquid (mainly milk) or food so that the…
Q: what practical importance are air borne microorganisms to the laboratory workers? What precautions…
A: Laboratories are the areas where lot of experiments and research is performed. It deals with lot of…
What is Pasteurization?
What are the methods used?
Give the meaning of UHT & HTST
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- Using aseptic techniques, list the general procedure of inoculating a broth from a plate culture.How would you make two-fold serial dilutions such that the last tube is a 1:32 dilution of the original, concentrated material? Assume that you need to have at least 500 µl of each dilution, and you should be able to perform the dilutions in microfuge tubes with a maximum capacity of 1.5 ml.List the ingredients and recipe (in gram or milligram) to make one liter (1000 ml) of Trypticase Soy Agar, nutrient agar, and Columbia blood medium (use a table
- What will pose an ethical issue in these procedures are performed - sterilization?What are the different types of Pasteurization?Of what practical importance are air borne microorganisms to the laboratory workers? What precautions should be taken to control laboratory contaminants? What precautions should be taken to control laboratory contaminants? Of what advantage is the using a solid and a liquid medium?
- What is the coliform test when is it used? What is its purpose? How does it function? What are the advantages and disadvantages of utilizing the coliform test?In your opinion and based on your knowledge, what is the most important component that will be tested using the reagent test strips?Why does a precipitate form on Sierra’s medium when inoculated with a lipolytic organism? Discuss the principle behind this procedure.