Textbook Question
Which of the following would be the best growth medium to use for industrial fermentations?
a. Corn
b. Synthetic medium made by hand
c. Whey from cheese production
d. Brewing mash
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Ch. 26 - Applied and Industrial Microbiology
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302
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Table of contents
- Ch. 1 - A Brief History of Microbiology31
- Ch. 2 - The Chemistry of Microbiology28
- Ch. 3 - Cell Structure and Function39
- Ch. 4 - Microscopy, Staining, and Classification25
- Ch. 5 - Microbial Metabolism51
- Ch. 6 - Microbial Nutrition and Growth37
- Ch. 7 - Microbial Genetics51
- Ch. 8 - Recombinant DNA Technology21
- Ch. 9 - Controlling Microbial Growth in the Environment36
- Ch. 10 - Controlling Microbial Growth in the Body: Antimicrobial Drugs21
- Ch. 11 - Characterizing and Classifying Prokaryotes29
- Ch. 12 - Characterizing and Classifying Eukaryotes34
- Ch. 13 - Characterizing and Classifying Viruses, Viroids, and Prions23
- Ch. 14 - Infection, Infectious Diseases, and Epidemiology35
- Ch. 15 - Innate Immunity34
- Ch. 16 - Adaptive Immunity21
- Ch. 17 - Immunization and Immune Testing29
- Ch. 18 - Immune Disorders22
- Ch. 19 - Pathogenic Gram-Positive Bacteria25
- Ch. 20 - Pathogenic Gram-Negative Cocci and Bacilli28
- Ch. 21 - Rickettsias, Chlamydias, Spirochetes, and Vibrios25
- Ch. 22 - Pathogenic Fungi47
- Ch. 23 - Parasitic Protozoa, Helminths, and Arthropod Vectors44
- Ch. 24 - Pathogenic DNA Viruses23
- Ch. 25 - Pathogenic RNA Viruses30
- Ch. 26 - Applied and Industrial Microbiology29
- Ch. 27 - Microbial Ecology and Microbiomes22
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302Not the one you use?Change textbook
Chapter 26, Problem 4
Potable water is allowed to have ________coliforms per 100 ml of water tested.
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Understand that coliform bacteria are used as indicator organisms to assess the microbial quality of potable (drinking) water, as their presence suggests possible contamination by fecal matter.
Recall that regulatory standards for potable water set a maximum allowable limit for coliform bacteria to ensure safety and prevent waterborne diseases.
Identify that the standard for potable water typically requires zero coliform bacteria per 100 ml sample, meaning no coliforms should be detected in a 100 ml water sample.
Recognize that this zero-tolerance standard helps ensure that the water is free from fecal contamination and safe for human consumption.
Summarize that the allowable number of coliforms per 100 ml of potable water is zero, reflecting strict microbiological safety standards.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Coliform Bacteria
Coliforms are a group of Gram-negative, rod-shaped bacteria commonly found in the environment, including soil and water, and in the intestines of warm-blooded animals. They are used as indicator organisms to assess the microbial quality of water because their presence suggests possible contamination by fecal matter and potential pathogens.
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Introduction to Bacteria
Water Quality Standards for Potable Water
Potable water standards define acceptable limits for microbial contamination to ensure safety for human consumption. Regulatory agencies, such as the EPA or WHO, set maximum allowable levels of indicator organisms like coliforms, often requiring zero coliforms per 100 ml to minimize health risks from waterborne diseases.
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Indicator Organisms in Water Testing
Indicator organisms, such as total coliforms and fecal coliforms, are used in water testing to detect contamination because they are easier to identify than specific pathogens. Their presence indicates potential fecal pollution and the possible presence of harmful microorganisms, guiding water treatment and safety assessments.
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Related Practice
Textbook Question
Which of the following lists foods in order, from perishable to nonperishable?
a. Dried pasta, cheese, fruit, uncooked ground beef
b. Dried pasta, fruit, uncooked ground beef, cheese
c. Uncooked ground beef, fruit, cheese, dried pasta
d. Uncooked ground beef, fruit, dried pasta, cheese
Textbook Question
Indicate whether the following statement is true or false. Rewrite the underlined phrase to make a false statement true.
_______ Methane is a gas produced by microbial metabolism that can be used directly as a fuel source.
Textbook Question
Biodegradable plastics can be made from which of the following microbial metabolites?
a. Sludge
b. PHB
c. BOD
d. Alum
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Textbook Question
Indicate whether the following statement is true or false. Rewrite the underlined phrase to make a false statement true.
_______Pasteurization kills mesophilic microorganisms except endospore formers.
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Textbook Question
The two types of industrial fermentation equipment are designed for ________ production or ________ production.
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