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Explain this to me please.

Posted: Thu Dec 31, 2009 12:03 am
by ludwigs9th
...if you can...in a way i that can understand.

i was talking to someone about this hobby, and answering questions the best i could. i was going on about yeast and sugar. i repeated stuff from the main site and this forum. i'm led to believe something like this;

yeast don't consume sugar as though it's food, they use other nutrients. sugar is the source of oxygen once the oxygen dissolved in the water is gone. then you get alcohol

i was saying this and at the same time thinking it can't really be true, not that it stopped me from saying it.

contrary to the beliefs of some here, yeast will do just fine (more or less) in nothing but refined white sugar and water. considering that, yeast should survive in nothing but aerated water. i'm not postive, but i don't think that's true.

secondly, we know yeast will produce lots of co2 as soon as it's unleashed on a sugar wash. so where does the carbon in co2 come from? must be sugar. sugar must be used from the very beginning. right?

just curious, thanks!

Re: Explain this to me please.

Posted: Thu Dec 31, 2009 12:52 am
by Daantje
yeast will transform sugar into co2 and alcohol, so you need sugar, and in return get co2 and alcohol

Re: Explain this to me please.

Posted: Thu Dec 31, 2009 1:25 am
by Dnderhead
yeast "eat" sugar for food, but much like "you" cant live on long bread alone, yeast cant live on just sugar long.
alcohol and co2 is a byproduct, much like you taking a sh#@ .it is not somthing thing that they want to live in.

Re: Explain this to me please.

Posted: Thu Dec 31, 2009 2:22 pm
by rad14701
As yeast are working hard at converting sugar into alcohol and CO2 they need nutritional vitamins and minerals just like we do... True, yeast will convert sugar without nutrients but they will become stressed, just like we will... Our options are to either use brute force, by adding large amounts of yeast, or providing ample vitamins and minerals to keep the yeast colony healthy and happy... The colony will not multiply without sufficient nutrients which means that they will degrade over a shorter period of time and die a premature death...

Re: Explain this to me please.

Posted: Thu Dec 31, 2009 2:54 pm
by cwood3
I don't know much, glucose or fructose is C6H12O6..........of course there are other sugars as well but they all have C-H-O chain.............hence the carbon......?