PSS 1311 exam 1 questions & answers 2024/2025
Definition(s) of wine - ANSWERS1. alcoholic beverage made from fermented grapes
2. beverage containing a lot of alcohol (ethanol)
3. fermented beverage-chemical breakdown of a substance by microorganisms, typically involving effervescence and giv...
Definition(s) of wine - ANSWERS1. alcoholic beverage made from fermented grapes
2. beverage containing a lot of alcohol (ethanol)
3. fermented beverage-chemical breakdown of a substance by microorganisms, typically involving
effervescence and giving off of heat
4. Ancestral definition- grapes from vines. that's where ""wine" derives from
Compounds found in wine - ANSWERSMainly water, sugar, ethanol
Principles of Feremintation - ANSWERSGlucose turned into a mixture of ethanol and CO2 by a YEAST
(<<most important in fermentation)
What is the main compound in wine making? - ANSWERSSugar
Organic Acids and its importance in wine - ANSWERS-Provides pH and flavor/taste
Tartaric Acid-most abundant, strongest
Malic Acid- apple acid, converted in lactic acid
Wine as biblical - ANSWERS-sign of sacrifice
-association with blood
Wine as Health - ANSWERS1500 BC
-sterile for wounds
-prescription/anti inflammatory
When and Where was wine created? - ANSWERS-around 5000 BC
, -Iran (Zagros Mt)
Biological Markers of wine - ANSWERS-Syringic Acid
-Tartaric Acid
-Pine resin
Wine evolution and fall of wine in the Roman Empire - ANSWERSbefore
-storage still in amphora and made roughly
-became a connoisseur product
after
-power of religion increased, so the wine consumption and production did as well
- new vineyards built (Burgundy) -use of wood for storage
What was discovered between 15th-18th centuries - ANSWERS-distillation process
-fortified winemakig
-sparkling winemaking (glass bottle)
-wine drinking universalized
What did Pasteur contribute to wine? - ANSWERS-fermentation was due to living organisms
-discovered how to stop bacterial contamination
Crisis in wine making - ANSWERS-Phylloxera-World Wars- Depression-Frauds
-20th century allowed for grafting, rationalized planting and a selection of the best grape varieties
Grapevine - ANSWERSknow the different parts of the grapevine
Psychological function of the grapevine - ANSWERSPhotosynthesis
Translocation
Respiration
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