Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
12th Edition
ISBN: 9780134605203
Author: Ted R. Johnson, Christine L. Case
Publisher: PEARSON
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Question
Chapter 22, Problem 2Q
Summary Introduction
To write:
The use or application of Thermal Death Time
Introduction:
Thermal death time is the calculation of the time it takes to kill a particular bacterium at a definite temperature. It was originally acquired for food canning and has observed applications in cosmetics. The nature of thermal death changes depending on the source of heat. Thermal death also includes the destruction of the membrane enclosing microorganisms such as bacteria.
High temperatures will also destroy
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Differentiate between thermal death point and thermal death time,and provide examples of their uses.
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Chapter 22 Solutions
Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
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 importance of heating as a laboratory techniquearrow_forwardUsing pasteurization techniques as a model, compare the TDTs and explain the relationships between temperature and length of exposure.arrow_forwardWhich of the following is/are direct effect/s of heat exposure in an industry? (ou may choose more than 1 answer) Burns Heat stroke Heat exhaustion Erthrocyanosisarrow_forward
- List the five categories of optimum temperature and describe a corresponding environment in which a representative might thrive?arrow_forwardDefine: lower critical temperature, thermoneutral zone, upper critical temperaturearrow_forwardWrite down the protocol for the shikata's orcien methodarrow_forward
- How can a life cycle of microorganism and heat resistance graph be used to determine the boiling time and temperature of heat treatment?arrow_forwardWhich type of hazard would pose the most threat to a clinical laboratory?arrow_forwardList the 5 categories of optimum temperature and describe a corresponding environment in which a representative might survive?arrow_forward
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