Industrial and Applied Microbiology Flashcards
fermentation
cells use glycolysis in the absence of oxygen
what yeast is used in making bread
S. cerevisiae
what does S. cerevisiae produce
ethanol and carbon dioxide gas
what does sourdough bread use
lactobacillus sanfrancisco
what do you crush grapes into to make wine
must
what is must
juice
what ferments the sugars in wine making
S. cerevisiae
does dry or sweet wine ferment longer
dry
what is oenology
science of winemaking
what grain is used in beer marking
barley
what does it mean for barley to be malted
barley seed is allowed to sprout
what happens to the malt when making beer
malt is dried, roasted, and mixed with water
what is the liquid portion of malt called
wort
what is wort mixed with
hops
what strain is used in beer making
saccaromyces
lager definition
bottom fermentation
10 - 12 days at 8 - 10°C
ale definition
top fermentation
6 days at 20°C
bottom fermentation defintiion
strain settles at bottom
top fermentation definition
strain floats to top