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ECONOMIC IMPORTANCE OF YEAST. What is yeast ? Structure of yeast Uses of the yeast. What is Yeast ?. Yeasts are eukaryotic micro-organisms classified in the kingdom Fungi, with 1,500 species currently described estimated to be only 1% of all fungal species . What is yeast ?. - PowerPoint PPT Presentation
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ECONOMIC IMPORTANCE OF YEAST
What is yeast?Structure of yeastUses of the yeast
Yeasts are eukaryotic micro-
organisms classified in the
kingdom Fungi, with 1,500
species currently described
estimated to be only 1% of
all fungal species.
What is Yeast?
What is yeast?
Yeast include some of
the most widely use
model organisms for
genetics and cell biology.
USES OF YEAST
Alcoholic beverages are
defined as beverages that
contain ethanol (C2H5OH).
USES OF YEAST- Alcoholic beverages
Brewing yeasts may be
classed as "top
cropping" (or "top
fermenting") and
"bottom cropping" (or
"bottom-fermenting").
USES OF YEAST-Beer
Yeast is used in
winemaking, where it
converts the sugars
present in grape juice
(must) into ethanol.
USES OF YEAST-Wine
Yeast, most commonly S.
cerevisiae, is used in baking
as a leavening agent, where
it converts the fermentable
sugars present in dough into
the gas carbon dioxide.
USES OF YEAST-Baking
Some yeasts can find potential
application in the field of
bioremediation.
USES OF YEAST- Bioremediation
The ability of yeast to
convert sugar into ethanol
has been harnessed by
the biotechnology
industry to produce
ethanol fuel.
USES OF YEAST- Industrial ethanol production(Bioethanol)
Root beer and other sweet carbonated beverages can be produced using the same methods as beer, except the fermentation is stopped sooner, producing carbon dioxide, but only trace amounts of alcohol, and a significant amount of sugar is left in the drink.
USES OF YEAST- Nonalcoholic beverages
Yeast is used in nutritional supplements popular with vegans and the health conscious, where it is often referred to as "nutritional yeast".
USES OF YEAST- Nutritional supplements
Some probiotic supplements use
the yeast S. boulardii to maintain
and restore the natural flora in
the gastrointestinal tract.
USES OF YEAST-PROBIOTIC
Yeast is often used by aquarium hobbyists to generate carbon dioxide (CO2) to nourish plants in planted aquariums.
USES OF YEAST- Aquarium hobby
http://en.wikipedia.org/wiki/Yeast http://www.ncbi.nlm.nih.gov/pmc/articles
/PMC553262/ http://www.yeastgenome.org/VL-what_are_
yeast.shtml
MY RESOURCES
NESLINUR YILDIZ 9/D 227
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