Laboratory Experiments in Microbiology (11th Edition)
11th Edition
ISBN: 9780321994936
Author: Ted R. Johnson, Christine L. Case
Publisher: PEARSON
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Chapter 22, Problem 4Q
Define the term pasteurization. What is the purpose of pasteurization?
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Chapter 22 Solutions
Laboratory Experiments in Microbiology (11th Edition)
Ch. 22 - Prob. 1QCh. 22 - Prob. 2QCh. 22 - Give an example of a nonlaboratory use of each of...Ch. 22 - Define the term pasteurization. What is the...Ch. 22 - Explain why fungi and Bacillus sometimes grow...Ch. 22 - Assume that a DRT value for autoclaving a culture...Ch. 22 - Indicators are used in autoclaving to ensure that...Ch. 22 - A biological indicator used in autoclaving is a...Ch. 22 - The source of Legionella causing...
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- Give the use and advantages of the following cultures for the examination ofcolony characteristics: a. Agar plateb. Agar slantc. Broth culturesarrow_forwardIn sterilization, which among the supplies, instruments, glassware, etc. under the list of materials can be sterilized using either or both equipment below? List them down under the category: a) For “autoclaving” only, B) For Dry heat oven sterilization ,And C) Can be sterilized with either. Materials: 200-ml Erlenmeyer flask Stove 500-ml Erlenmeyer flask Autoclave 10-mL graduated cylinder Analytical balance 100-ml graduated cylinder pH meter Spatula Stirring rod 100-mL beaker Test tubes Distilled water Petri dish Stirring rod Alcohol lamp Glass dropperarrow_forwarddescribe the 3 processes that use moist heat methods specifying time and temperature for each: pasteurization autoclaving tyndallizationarrow_forward
- Differentiate sterilization from disinfection. Differentiate sterilization from disinfection.arrow_forwardWhat microorganisms serve as the reference point in determining the time and temperature of pasteurization?arrow_forwardWhy must you first clean debris from items before beginning disinfection or sterilization? (arrow_forward
- List one method of disinfection, and one method of sterilization. Label which is which. A/arrow_forwardexplain how the use of an Eosin methylene blue agar plate can help determine the type of fermenters that bacteria are. explain throughly.arrow_forwardDefine disinfection. Define sterility. Compare and contrast disinfection with sterility.arrow_forward
- Differentiate the following sterilization techniques: a. Autoclave b. Dry heat c. Sterile filtrationarrow_forwardControl of Microbial Growth A) Which would be the best process to use and why? B) Can you use pasteurization? Explain. C)What is the true definition of an "antibiotic?"arrow_forwardExplain why desiccation and cold are not reliable methods of disinfectionbut how they can still be effective in microbial control.arrow_forward
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