Alternative Protein Sources and Yeast Production

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Questions and Answers

Which lecture covers the topic of Pathogenic Bacteria?

Lecture 13

In which lecture is the topic of Antibiotic Resistant Microorganisms discussed?

Lecture 15

Which lecture addresses Microbiology in the Food Industry related to Fungi?

Lecture 17

What is the topic of Lecture 19?

The Nitrogen Cycle Signup and view all the answers

Which process is associated with the production of Alcoholic drinks?

$Beer$ starch $\rightarrow$ sugars + M/O Signup and view all the answers

Which lecture covers the topic of The Immune System?

Lecture 12 Signup and view all the answers

What is the main focus of Lecture 16?

Identification of Microorganisms Signup and view all the answers

In which lecture is the topic of Microbial Biomass discussed?

Not covered in any of the lectures Signup and view all the answers

What was the main purpose of producing Single Cell Protein during WW2?

To produce protein cheaply during wartime Signup and view all the answers

What does SCP stand for in the context provided?

Single Cell Protein Signup and view all the answers

What is single cell protein (SCP)?

Microbial cells grown for animal/human food Signup and view all the answers

What is the key to high yeast biomass yield?

Aeration and avoiding fermentation Signup and view all the answers

Which substrates can be used for micro-organism production?

Molasses, agricultural wastes, and industrial by-products Signup and view all the answers

What are the limitations of single cell protein (SCP) use?

Indigestible cell walls, mycotoxins, and high nucleic acid content Signup and view all the answers

What is Quorn myco-protein made from?

Fusarium graminearum Signup and view all the answers

What are good bakers' yeast characteristics?

High growth rates and cryotolerance Signup and view all the answers

Which of the following is NOT a topic covered in the remaining lectures for MICR20010?

The Nitrogen Cycle Signup and view all the answers

Which lecture would most likely cover the topic of the identification of pathogenic microorganisms?

Lecture 16 – Identification of Microorganisms Signup and view all the answers

Which process is associated with the production of vinegar?

Vinegar's Milk Signup and view all the answers

What is the main focus of Lecture 17?

Microbiology in the Food Industry – The Fungi Signup and view all the answers

What was the rapid development phase for Single Cell Protein (SCP)?

$1960s$ and $1970s$ Signup and view all the answers

'Symbiotic M/O association' is most closely related to which product?

$Yoghurt$ Signup and view all the answers

What was the main purpose of producing Single Cell Protein during WW2?

To produce protein cheaply Signup and view all the answers

What are some limitations of single cell protein (SCP) use?

Difficulties in production and lack of consumer acceptance Signup and view all the answers

What is Quorn myco-protein made from?

Fungi Signup and view all the answers

Which lecture addresses Microbiology in the Food Industry related to Fermentations?

Lecture 18 – Microbiology in the Food Industry - Fermentations Signup and view all the answers

What is the main driver behind the search for alternative protein sources?

Rising demand for animal/human food Signup and view all the answers

What does Single Cell Protein (SCP) refer to?

Microbial cells grown for animal/human food Signup and view all the answers

What is the key factor in achieving high yeast biomass yield?

Aeration and avoiding fermentation Signup and view all the answers

Which substrates can be used for micro-organism production?

Molasses, agricultural wastes, and industrial by-products Signup and view all the answers

What are the limitations of Single Cell Protein (SCP) use?

Indigestible cell walls, mycotoxins, and high nucleic acid content Signup and view all the answers

Which micro-organism is used to produce Quorn myco-protein?

Fusarium graminearum Signup and view all the answers

What is a key characteristic of good bakers' yeast?

High fermentation activity and stress tolerance Signup and view all the answers

Study Notes

Alternative Protein Sources and Yeast Production

Protein increase in global population drives search for alternative protein sources
Single cell protein (SCP) refers to microbial cells grown for animal/human food
Yeast production: cattle yield 0.4kg protein/24h; yeast yields >50,000kg/24h
Key to high yeast biomass yield is aeration, avoiding fermentation
Yeast production involves scale-up from bench-top to fermentor, fed batch feeding regime
Good bakers' yeast characteristics include high growth rates and cryotolerance
SCP can be produced from algae, fungi, and bacteria through fermentation
Substrates for micro-organism production include molasses, agricultural wastes, and industrial by-products
Nutritive value of micro-organisms varies in protein, vitamins, and mineral content
Limitations of SCP use include indigestible cell walls, mycotoxins, and high nucleic acid content
Quorn myco-protein is an example of SCP for human consumption, made from Fusarium graminearum
Mushrooms are a cheap and excellent source of protein, grown on plant waste and used medicinally

Alternative Protein Sources and Yeast Production

Protein increase in global population drives search for alternative protein sources
Single cell protein (SCP) refers to microbial cells grown for animal/human food
Yeast production: cattle yield 0.4kg protein/24h; yeast yields >50,000kg/24h
Key to high yeast biomass yield is aeration, avoiding fermentation
Yeast production involves scale-up from bench-top to fermentor, fed batch feeding regime
Good bakers' yeast characteristics include high growth rates and cryotolerance
SCP can be produced from algae, fungi, and bacteria through fermentation
Substrates for micro-organism production include molasses, agricultural wastes, and industrial by-products
Nutritive value of micro-organisms varies in protein, vitamins, and mineral content
Limitations of SCP use include indigestible cell walls, mycotoxins, and high nucleic acid content
Quorn myco-protein is an example of SCP for human consumption, made from Fusarium graminearum
Mushrooms are a cheap and excellent source of protein, grown on plant waste and used medicinally