Microbiology with Diseases by Taxonomy (5th Edition)
Microbiology with Diseases by Taxonomy (5th Edition)
5th Edition
ISBN: 9780134019192
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 26, Problem 1MC
Summary Introduction

Introduction:

Food fermentation is the changes that occur in food due to microbial growth. This process is useful in food processing industry. It is carried out with the help of bacteria or yeasts under anaerobic conditions to cause desired changes in food. Spoilage of food is caused by bacteria which lead to growth of unwanted microorganisms and "undesirable metabolic reactions" in the food causing unwanted change.

Expert Solution & Answer
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Answer to Problem 1MC

Correct answer:

Food fermentation helps provide a characteristic “taste to the food”, “lowers the risk of food spoilage”, and “increases food shelf life”. It does not sterilize food.

Therefore, option (c) is correct.

Option (c) is given as “sterilize foods”.

Explanation of Solution

Justify reasons for the correct statement:

Fermentation is caused by microbes such as bacteria and yeasts. It provides characteristic taste to food such as buttermilk and bread. It helps in reducing acidity to avoid food spoilage. Shelf life of food is increased as the process of fermentation by producing compound having antimicrobial activity. Hence, food fermentation does not “sterilize food”.

Hence, option (c) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “gives foods a characteristic taste”.

Fermentation provides characteristic taste to food such as buttermilk and bread. As the above mentioned statement is a characteristic of fermentation process. Hence, it is a wrong answer.

Option (b) is given as “lower the risk of food spoilage”.

Fermentation helps to avoid food spoilage by reducing acidity. As the above mentioned statement is a characteristic of fermentation process. Hence, it is a wrong answer.

Option (d) is given as “increase the shelf life of the food”.

Shelf life of food is increased as fermentation produces compounds having antimicrobial activity. As the above mentioned statement is a characteristic of fermentation process. Hence, it is a wrong answer.

Hence, options (a), (b), and (d) are incorrect.

Conclusion

Fermentation of food provides a characteristic taste to it, lowers the risk of food spoilage, and increases food shelf life, but does not sterilize food.

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Chapter 26 Solutions

Microbiology with Diseases by Taxonomy (5th Edition)

Ch. 26 - In the environment, nutrients are generally...Ch. 26 - Most chemical elements exist in the environment as...Ch. 26 - In the carbon cycle, microbes convert _______. a....Ch. 26 - Prob. 14MCCh. 26 - In aquatic environments, most microbial life is...Ch. 26 - Prob. 16MCCh. 26 - Of the following characteristics, which would...Ch. 26 - Anammox reactions are _______. a. anaerobic and...Ch. 26 - Prob. 19MCCh. 26 - Prob. 20MCCh. 26 - Match each term with its correct definition. 1. __...Ch. 26 - Prob. 1TFCh. 26 - Prob. 2TFCh. 26 - Prob. 3TFCh. 26 - __ Methane is a gas produced by microbial...Ch. 26 - Prob. 5TFCh. 26 - __ Recalcitrant molecules can be degraded by...Ch. 26 - __ Biofilms of microorganisms form in aquatic...Ch. 26 - __ Cooperation is common among microorganisms...Ch. 26 - ______ Aquatic microorganisms are more prevalent...Ch. 26 - _______ Abyssal organisms are found near shores of...Ch. 26 - Prob. 1FIBCh. 26 - Prob. 2FIBCh. 26 - Prob. 3FIBCh. 26 - Prob. 4FIBCh. 26 - Leaching of compounds from mine tailings often...Ch. 26 - Biogeochemical cycling involves three primary...Ch. 26 - Nitrogen exists primarily as ______ in the...Ch. 26 - Prob. 8FIBCh. 26 - A _________ is a device composed of microbes and...Ch. 26 - Prob. 10FIBCh. 26 - Label the general phases in the carbon cycle.Ch. 26 - Label the processes of the nitrogen cycle.Ch. 26 - Why does the application of recombinant DNA...Ch. 26 - Given what you know about microbial nutrition and...Ch. 26 - Compare the types of alternative fuels that could...Ch. 26 - Prob. 4CTCh. 26 - Even though water and wastewater undergo...Ch. 26 - Take a critical look at the garbage in all of your...Ch. 26 - Prob. 7CTCh. 26 - Prob. 8CTCh. 26 - Explain why sake- sometimes called rice wine-would...Ch. 26 - Inexpensive bulk wines and wines that have been...Ch. 26 - Prob. 11CTCh. 26 - Prob. 12CTCh. 26 - Prob. 13CTCh. 26 - Explain how biosensors might be used for water...Ch. 26 - Prob. 15CTCh. 26 - Using the following terms, fill in the following...Ch. 26 - Even though microbes are naturally present in raw...Ch. 26 - Prob. 2TMWCh. 26 - A blogger stated that germs (microorganisms) are...Ch. 26 - Compare human, animal, and plant pathogens that...
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