Lecture 11: Stimulating Beverages 1

Question 1

What does coffee, tea, and cocoa have in common?

Answer 1

caffeine

Question 2

Where is caffeine found in orange trees?

Answer 2

flowers

Question 3

Where is caffeine found in Yerba mate?

Answer 3

leaves

Question 4

Where is caffeine found in Cola and Guarana?

Answer 4

seeds

Question 5

Why do plants produce caffeine?

Answer 5

Defense role, antifungal/antibiotic properties

Insecticide properties and induces sterility in herbivorous insects

Question 6

True or False: Caffeine is only produced by plants but it greatly affects the animals.

Answer 6

True

Question 7

What are the 6 benefits of caffeine?

Answer 7

Central nervous system and metabolic stimulant

Speeds the heartbeat, increases blood pressure, stimulate respiration and constricts blood vessels.

Enhances pain-relieving effects of aspirin and acetaminophen

Reduces risk of certain cancers (e.g., liver).

Reduces risk of Parkinson’s

Lower risk of diabetes type II

Question 8

What are the 4 detrimental effects of caffeine?

Answer 8

It is addictive

In some individuals may induce anxiety, insomnia, gastrointestinal disturbance, muscle twitching, irregular or rapid heart beat (“caffeinism”).

Overdose can result in death.

Some suggest limiting caffeine consumption during pregnancy

Question 9

The negative effects of caffeine effects are of major concern in relation to the consumption of_______, in which the content of caffeine is that in 2-6 cups of coffee + a huge amount of sugar

Answer 9

energy drinks

Question 10

____ is from a small tree native to mountains of Ethiopia (Africa)

Answer 10

Coffee

Question 11

What type of fruit is the coffee plant?

Answer 11

Fruit is a drupe that contains (typically) 2 seeds: the coffee “beans”

Question 12

True or False: Roasted seeds preserve well but once unroasted they rapidly lose flavour.

Answer 12

False, vive versa

Question 13

True or False: Fleshy fruit tissue removed mechanically or through fermentation

Answer 13

True

Question 14

The roasting temperature influences the conversion of ______.

Answer 14

starch to sugar

Question 15

True or False: The darker the roast the less sweet and more bitter the coffee becomes.

Answer 15

True

Question 16

temperature influences the release of ______, the chemical that gives coffee its characteristic aroma

Answer 16

caffeol

Question 17

True or False: Roasting temperature does not influence the caffeine concentration.

Answer 17

Roasting

Question 18

_______ is concentrated coffee brewed by forcing a small amount of nearly boiling water under pressure through finely ground coffee beans

Answer 18

Espresso

Question 19

Caffe ______ is essentially an espresso with steamed milk (ca. 210 ml milk per 30 ml espresso coffee).

Caffe ______ is like a Caffe latte but with less milk and it has chocolate syrup added.

Caffe ______ is also made with espresso, less milk but it has a large cap of foaming milk (resembling the hood of Capuchin friars).

Answer 19

latte

mocha

cappuccino

Question 20

Where does the most expensive coffee in the world come from?

Answer 20

Kopi luwak

coffee beans once they have been eaten and excreted by the Asian palm civet

Defecated coffee beans

Question 21

Why is kopi luwak special?

Answer 21

the civet’s proteolytic enzymes seep into the beans, making shorter peptides and more free amino acids, making the coffee less bitter

Question 22

Cultivation, roasting and what we know as “coffee” began in ______.

Answer 22

13th century in Yemen

Question 23

Legend has it that ______ lead to the discovery the stimulating properties of coffee

Answer 23

goats

Question 24

True or False: Political and religious leaders were threatened about coffee houses in Arabic countries

Answer 24

True

Question 25

True or False: they were centres for the arts, intellectual discourse and political debate

Answer 25

True

Penny universities

Question 26

True or False: Coffee trade is 2nd only after oil trade

Answer 26

True

Question 27

How many cups of coffee are drinking a day?

Answer 27

1.4 billion cups

Question 28

Fair trade coffee makes sure that farmers are paid a minimum of $______

Answer 28

1.35/pound

Question 29

True or False: Most of the coffee prices does not go to the producers but to middlemen and companies that sell it

Answer 29

True