Lecture 11: Stimulating Beverages 1 Flashcards
What does coffee, tea, and cocoa have in common?
caffeine
Where is caffeine found in orange trees?
flowers
Where is caffeine found in Yerba mate?
leaves
Where is caffeine found in Cola and Guarana?
seeds
Why do plants produce caffeine?
Defense role, antifungal/antibiotic properties
Insecticide properties and induces sterility in herbivorous insects
True or False: Caffeine is only produced by plants but it greatly affects the animals.
True
What are the 6 benefits of caffeine?
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
What are the 4 detrimental effects of caffeine?
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
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
energy drinks
____ is from a small tree native to mountains of Ethiopia (Africa)
Coffee
What type of fruit is the coffee plant?
Fruit is a drupe that contains (typically) 2 seeds: the coffee “beans”
True or False: Roasted seeds preserve well but once unroasted they rapidly lose flavour.
False, vive versa
True or False: Fleshy fruit tissue removed mechanically or through fermentation
True
The roasting temperature influences the conversion of ______.
starch to sugar
True or False: The darker the roast the less sweet and more bitter the coffee becomes.
True
temperature influences the release of ______, the chemical that gives coffee its characteristic aroma
caffeol
True or False: Roasting temperature does not influence the caffeine concentration.
Roasting
_______ is concentrated coffee brewed by forcing a small amount of nearly boiling water under pressure through finely ground coffee beans
Espresso
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).
latte
mocha
cappuccino
Where does the most expensive coffee in the world come from?
Kopi luwak
coffee beans once they have been eaten and excreted by the Asian palm civet
Defecated coffee beans
Why is kopi luwak special?
the civet’s proteolytic enzymes seep into the beans, making shorter peptides and more free amino acids, making the coffee less bitter
Cultivation, roasting and what we know as “coffee” began in ______.
13th century in Yemen
Legend has it that ______ lead to the discovery the stimulating properties of coffee
goats
True or False: Political and religious leaders were threatened about coffee houses in Arabic countries
True
True or False: they were centres for the arts, intellectual discourse and political debate
True
Penny universities
True or False: Coffee trade is 2nd only after oil trade
True
How many cups of coffee are drinking a day?
1.4 billion cups
Fair trade coffee makes sure that farmers are paid a minimum of $______
1.35/pound
True or False: Most of the coffee prices does not go to the producers but to middlemen and companies that sell it
True
