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Food Science 3
N/A
58
Other
Undergraduate 2
01/30/2012

Additional Other Flashcards

 


 

Cards

Term
What is Reinheitsgebot?
Definition

A German Purity Law establish to make beer—malted barley, hops and water. Also the law protects wheat and ripe

industry

Term

What is an alternative sources of sugar called?

 

Definition
Adjuncts, examples = rice and corn, used for lighter flavor and color
Term

What is the role of Husk (or Hull)?

 

Definition
A filter bed in the brew house
Term

Where are enzymes synthesized?

 

Definition
Aleurone
Term

What is the process Modification?

 

Definition
Break down of the starchy endosperm by enzymes
Term

What is Kiln?

 

Definition
The process of drying out water
Term

What reacts together for favor and color in Kilning Process?

 

Definition
Sugars and Amino acids produce Melanoidins (colors) Flavors
Term

Why do Yeast need oxygen for?

 

Definition
To make membrane
Term

What is the most expensive step of the brewing process?

 

Definition
Bottling-- 1200 bottles per min
Term

Why is Sorghum Malt used in 1% of beer?

 

Definition
Made for people with zelcec—allergic to proteins in barley and wheat
Term

  Modification

Definition
 Modifying starchy endosperm.
Term

1.       Why do we start killing at low temperatures: 

Definition
To preserve the enzymes.
Term

Why is barley used in 90% of beer?

 

Definition
Because of the husk—filter bed in brew house
Term

Why is the Hordeum distichon a more favorable grass family for barley?

.

Definition
It contains 2 rows, which means more space for starch to become bigger. More starch, more sugar, more beer
Term

How are cell wall polymers, proteins and starch broken down?

 

Definition
By different enzymes
Term

What is a Hydrometer?

 

Definition
Used to measure specific gravity. Higher specific gravity = More sugar/extract in solution
Term

What is the Lowest Cost in the brewing beer?

 

Definition
Hops!
Term

What are the use of Hops?

 

Definition
1) Beer making 2) Has filun estrogen, but doesn't get into beer.
Term

What does Lupulin Glands contain?

 

Definition
Resin and Oil (aroma)
Term

1.       Barley is chosen for reasons?

Definition
As the “fertile cresent” and contributes to the foam and flavor.
Term

1.       Why is barley the best? 

Definition
Because it retains the husk.
Term

1.       What is husk? 

Definition
Husk is the filter and collects the liquid. 
Term

1.       What is most potent in hops?

Definition
 The estrogen.
Term

1.       What do the lupulin glands contain? 

Definition
Resins and oils. 
Term
What produces the bitterness in the Lupulin?
Definition
Resin: alpha acids. More alpha acids, more bitterness
Term

Where is the # hops production?

 

Definition
Germany followed by USA
Term

What is Dry Hopping?

 

Definition
Add hops to finished beer
Term

Why add hydrogen to pre-isomerized extracts?

 

Definition
To reduced alpha acids because when exposed to light, extract smells like skunk
Term

What is Lather Formation?

 

Definition
Soft Water
Term

Two types of Hardness Water?

 

Definition

1. Temporary – boiled water with bicarbonates of calcium, CA breaks down

2. Permanent – boiled water with sulfates of calcium, CA doesn't break down

Term

Where does water have the most and least Calcium?

 

Definition

Burton = Most Calcium (Hard Water)

Pilsen = Least Calcium (Soft Water)

Term
Impact of adding Calcium
Definition
Lowering pH
Term

What is the outcome of Calcium + Phosphate?

 

Definition
Acid
Term

What are the 3 water treatments?

 

Definition

Charcoal filtration

Ion Exchange

Sterilization

Term

What happens to waste water?

 

Definition

Processed in 2 ways

1. Aerobic with oxygen → CO2 and water

2. Anaerobic without oxygen → Methane (used to burn for energy to clean waste water)

Term

What does Godesgoode mean?

 

Definition
Brewing Yeast
Term

How do you tell how old a yeast is?

 

Definition
Budd Scars, appears after every budding
Term

What is the difference between an Ale strain and Lager Strain?

 

Definition

Ale grows at 37 Celsius and don't use melibiose (simple sugar)

 

Lager don't grow at 37 Celsius and d use melibiose

- has extra DNA containing to metabolize melibiose

- 2 Ale yeasts evolved to Lager yeast

Term

What source of nutrition do yeast needs?

 

Definition
Energy, Carbon, Nitrogen, Sulfate, Oxygen, Vitamins, Minerals (Zinc)
Term

What is the purpose of Zinc nutrition?

 

Definition
To add performance of yeast—part of the enzyme require zinc
Term

What are historic differences between Ale and Lager?

 

Definition

Ale = top fermenters, fermentation at 18-22 Celsius of worts from well modified malts, relatively highly kilned,

dry hopping

Lager = bottom fermenters, fermentation at 6-15 Celsius of worts from relatively less well modified, lightly kilned,

late hopping

Term

 

How do we choose which yeast strain?

 

 

Definition
Serendipity, theft, mutation, breeding, genetic modification
Term

What is the world's first beer made using a genetically-modified yeast?

 

Definition
Nutfield Lyte—no major advantage
Term

 

What does Viability and Vitality mean?

 

 

Definition

Viability = Alive or not? (Use methyl blue → change color → Alive

Vitality = The fitness and health of the cell

Term

What is a Hemocytometer?

 

Definition

Use to count number of cells

“1 million cells for 1 mililiter of wort for degree plateau”

Term

What is the average pH of beer?

 

Definition
4 to 4.5
Term

What are produced in fermentation?

 

Definition
Alcohol, Carbon Dioxide, Flavorsome substances and more yeast
Term

Where is the top producers of beer?

 

Definition
China
Term

Where is the top consumption of beer?

 

Definition
Czech Republic
Term

Which is the biggest brewing companies?

 

Definition

1. Anheuser-Busch/Inbev

2. SAB-Miller

Term

What is the World's leading beer brand?

 

Definition
Snow (China)
Term

What is America leading beer brand?

 

Definition
Bud Light
Term

What is ABV?

 

 

Definition
Alcohol by volume—Spain = 5.2%, Canada = 5.0%, U.S. = 4.6%, U.K. = 4.2%, New Zealand and Sweden = 4.0%
Term

1.       Why do you need to give oxygen to yeast cells during fermentation? 

Definition
So that it can produce healthy membranes.
Term

What is the three-tier arrangement?

 

Definition
The brewer supplies, the distributor is the wholesaler and the retailers sells
Term

Where is the lowest consumption of beer in US?

 

Definition
Utah 12.4
Term

Where is the highest consumption of beer in US?

 

Definition
Nevada 33.2
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