IUBio Biosequences .. Software .. Molbio soft .. Network News .. FTP

Fwd: Rate of fermentation(variable: sugars)

karin the redhotchilean latinolovepuppet at hotmail.com
Tue Oct 26 09:19:55 EST 1999

I am an A Level biologist carrying out an experiment on the rate of
>carbon dioxide produced by yeast depending on the sugar mixed with the 
>yeast I have carried out this experiment at 30degrees celcious with 
>saccharomyces cerevisiae, using the following carbohydrates at 10% 
>concentration in solution;sucrose, glucose,maltose,fructose 
>galactose,lactose,starch. A solution of 10% yeast was made up and mixed 
>with the sugar in a conical flask,a tube from the bung was connected to a 
>downwards displacement of water apparatus so the carbon dioxide volume 
>could be measured.My hypothesis was that monosaccharides will produce more 
>carbon dioxide in half an hour than disaccharides and polysaccharides 
>because there are less bonds to break therefore less energy required. I 
>would like to know which dehydrogenases yeast have to break down sugars and 
>which sugars yeast can and can't break down and the rate at which they do 
>this, please i need more info into the mechanism of fermentation by the 
>yeasts dehydrogenases because my results are not following my hypothesis 
>please I really need help ASAP!!! please write if you have the answers to 
>redhotchilepepper at hotmail.com thank so very much
>Karin brakewell

Get Your Private, Free Email at http://www.hotmail.com

YEAST bionet newsgroup see: http://www.bio.net/hypermail/YEAST/
YEAST e-mail: messages sent to yeast at net.bio.net
subscribe: e-mail biosci-server at net.bio.net with: subscribe yeast
unsubscribe: e-mail biosci-server at net.bio.net with: unsubscribe yeast
YEAST on the WWW: http://genome-www.stanford.edu/Saccharomyces/VL-yeast.html
problems with the YEAST newsgroup? E-mail the moderator: francis at cmmt.ubc.ca

More information about the Yeast mailing list

Send comments to us at biosci-help [At] net.bio.net