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Fermentations

Fermentation substrates

materials used as food for growing microorganisms, part of the culture medium along with chemicals that facilitate fermentation and other trace materials.


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Re: Hard time with homework question

... This question is ambiguous. The answer is going to be the 2 ATP and 2 NADH from glycolysis plus whatever products from the specific anaerobic fermentations that are going on. 6. hydogen sulfide??? This is a very smelly chemical and could be present but based on the information given I can't ...

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by daniel.kurz
Mon Nov 21, 2011 8:22 pm
 
Forum: General Discussion
Topic: Hard time with homework question
Replies: 6
Views: 4683

Re: aspergillus sojae

This species is not considered common to indoor environments. To date, it has only been isolated from koji fermentations. This fungus should be considered allergenic. No toxic or invasive diseases have been documented to date.

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by sara135
Tue Jul 12, 2011 11:43 am
 
Forum: Microbiology
Topic: aspergillus sojae
Replies: 3
Views: 5243

Fermentative microorganisms?

... not a microbiologist but I am a brewer. In recent years there has been a trend in the craft beer industry towards what we call "wild" fermentations, i.e. non-saccharomyces organisms used to ferment beer. The most popular are Brettanomyces yeasts (awesome), Lactobacillus (pretty good) ...

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by Darel
Sat Oct 31, 2009 1:20 am
 
Forum: Microbiology
Topic: Fermentative microorganisms?
Replies: 3
Views: 1739

Identifying unknown bacteria

... yes Endospores- yes oxygen requirements- aerobic Extracellular enzymes: Starch- negative Gelatin- positive Casein- positive Tributyrin- positve Fermentations: Glucose- acid only Sucrose- acid only Lactose- acid only Hydrogen sulfide- negative IMViC Test: indole- negative methyl red- negative ...

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by alison_023
Sun Nov 04, 2007 12:50 am
 
Forum: Microbiology
Topic: Identifying unknown bacteria
Replies: 1
Views: 4417

Fermentation

... process in which the fermentable substrate becomes both oxidized and reduced. This definition perfectly describes Lactic Acid/Ethanol Fermentations. ****Lactic acid fermentation**** 1st step (glycolysis): Glucose(0) + 2NAD -> 2Pyruvate(+2) + 2NADH We see that Glucose with oxidation ...

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by druid
Fri Oct 20, 2006 2:55 am
 
Forum: Cell Biology
Topic: Fermentation
Replies: 3
Views: 3188
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