Bio fuels of Yeast fermentation
by Lillian Bonar
Essay: Bio fuels of Yeast fermentation
Pages: 11
Rating: 3 stars
Download Links:
• Bio fuels of Yeast fermentation.pdf
• Bio fuels of Yeast fermentation.doc
Introduction
Biofuels are an importance source of fuel due to the cause that they are infinite and can be found easily compared
to fossil fuels. Fossil fuels are finite, hard to find and are not cost-effective as biofuels are. Another good thing
about biofuels is that don’t contribute to global warming as much as fossil fuels do. Biofuels are mainly used for as
a source of energy and sustainable transport. The ways that these biofuels are produces is that fact they convert
living organism’s derivatives into biomass and use it as a fuel source (European Environment Agency, 2011). Then
these biomasses can be then turned in chemical, biochemical or thermal conversions (European Environment
Agency, 2011).
Alcoholic Fermentation occurs after glycolysis and pyruvate processing (Morton, 1980). During glycolysis, glucose
breaks down to form two pyruvate molecules, converting two NAD+ to two NADH, and making two ATP. Then,
the two electrons from NADH are transferred to the pyruvate and reduces the molecule. Two carbon dioxide
molecules are taken off pyruvate to form two molecules of ethanol. After this, the NAD+ is left and is free to start
the whole process over again. The reason why this is a bio fuel is the fact that yeasts derivate is converted into
biomass.
In this experiment, three types of yeast were gathered. These yeast were brewing yeast, bread or regular yeast,
and ale yeast. Brewing yeast is from a single-celled fungus named Saccharomyces cerevisiae. This type of yeast is
used for baking, brewing and winemaking. S. cerevisiae is diploid with high rate of reproduction (Legras et al,
2007). Which means that the carbon dioxide levels should be relatively high when fermentation occurs and would
serve as good biofuel.
The age o...
essay biography, essay biology, essay biography about myself, essay biography examples, essay biodata,
essay biodiversity, essay biology questions, essay biotechnology, essay biology spm, essay bioethics