ECONOMIC IMPORTANCE OF YEAST
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Transcript of ECONOMIC IMPORTANCE OF YEAST
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ECONOMIC IMPORTANCE OF YEAST
What is yeast?Structure of yeastUses of the yeast
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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?
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What is yeast?
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Yeast include some of
the most widely use
model organisms for
genetics and cell biology.
USES OF YEAST
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Alcoholic beverages are
defined as beverages that
contain ethanol (C2H5OH).
USES OF YEAST- Alcoholic beverages
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Brewing yeasts may be
classed as "top
cropping" (or "top
fermenting") and
"bottom cropping" (or
"bottom-fermenting").
USES OF YEAST-Beer
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Yeast is used in
winemaking, where it
converts the sugars
present in grape juice
(must) into ethanol.
USES OF YEAST-Wine
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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
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Some yeasts can find potential
application in the field of
bioremediation.
USES OF YEAST- Bioremediation
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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)
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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
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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
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Some probiotic supplements use
the yeast S. boulardii to maintain
and restore the natural flora in
the gastrointestinal tract.
USES OF YEAST-PROBIOTIC
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Yeast is often used by aquarium hobbyists to generate carbon dioxide (CO2) to nourish plants in planted aquariums.
USES OF YEAST- Aquarium hobby
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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
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NESLINUR YILDIZ 9/D 227