Microbiology: An Introduction, Books a la Carte Plus Mastering Microbiology with Pearson eText -- Access Card Package (13th Edition)
13th Edition
ISBN: 9780134729336
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case, Derek Weber, Warner Bair
Publisher: PEARSON
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Chapter 28, Problem 3CAE
The antibiotic efrotomycin is produced by Streptomyces lactamdurans. S. lactamdurans was grown in 40,000 liters of medium. The medium consisted of glucose, maltose, soybean oil, (NH4)2SO4, NaCl, KH2PO4, and Na2HPO4. The culture was aerated and maintained at 28°C. The following results were obtained from analyses of the culture medium during cell growth:
- a. Under what conditions is the most efrotomycin produced? Is it a primary or secondary metabolite?
- b. Which is used first, maltose or glucose? Suggest a reason for this.
- c. What is the purpose of each ingredient in the growth medium? (Hint: See Chapter 6.)
- d. What is Streptomyces? (Hint: See Chapter 11.)
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Chapter 28 Solutions
Microbiology: An Introduction, Books a la Carte Plus Mastering Microbiology with Pearson eText -- Access Card Package (13th Edition)
Ch. 28 - What is industrial microbiology? Why is it...Ch. 28 - How does commercial sterilization differ from...Ch. 28 - Why is a can of blackberries preserved by...Ch. 28 - Outline the steps in the production of cheese, and...Ch. 28 - Beer is made with water, malt, and yeast; hops are...Ch. 28 - Why is a bioreactor better than a large flask for...Ch. 28 - The manufacture of paper includes the use of...Ch. 28 - Describe an example of bioconversion. What...Ch. 28 - Prob. 9RCh. 28 - NAME IT Van Leeuwenhoek was the first to see this...
Ch. 28 - Foods packed in plastic for microwaving are a....Ch. 28 - Acetobacter is necessary for only one of the steps...Ch. 28 - Use the following choices to answer questions 35:...Ch. 28 - The spoilage of canned foods caused by Geobacillus...Ch. 28 - A heat-resistant fungus that causes spoilage in...Ch. 28 - The term 12D treatment refers to a. heat treatment...Ch. 28 - Which one of the following is not a fuel produced...Ch. 28 - Which type of radiation is used to preserve foods?...Ch. 28 - Which of the following reactions is undesirable in...Ch. 28 - Which of the following reactions is an oxidation...Ch. 28 - Which bacteria seem to be most frequently used in...Ch. 28 - Methylophilus methylotrophus can convert methane...Ch. 28 - Faded worn-look denim is produced with cellulase....Ch. 28 - Suppose you are culturing a microorganism that...Ch. 28 - Researchers at the CDC inoculated apple cider with...Ch. 28 - The antibiotic efrotomycin is produced by...
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