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Yeast

Definition

noun, plural: yeasts

Colloquial name for the fungus that is characteristically single-celled most of its life, eukaryotic, reproduce asexually by budding or binary fission, produce ascospores, capable of fermenting carbohydrates.


Supplement

Yeasts are important organism for their metabolic products used in the production of alcohol, wine, fruit juices, and leavening agent.

Important yeasts include Saccharomyces cerevisiae that has been used commercially and Candida albicans that is an opportunistic pathogen in humans.


Word origin: Middle English yeest, from Old English gist

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Please guide me about these restriction enzymes

For linirization of plasmid yeast(cervizea)why NotI is used instead of NHEI? please compare and describe them

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by 2angel
Tue Mar 11, 2014 7:24 am
 
Forum: General Discussion
Topic: Please guide me about these restriction enzymes
Replies: 2
Views: 1337

The effect of ethanol on peroxidase activity

Hi! I'm wondering if anyone knew why by increasing ethanol concentration in a 10mL solution mixed with yeast, a greater amount of oxygen was produced? So peroxidase activity increased when i increased ethanol concentration in my lab. I thought it was suppose to be the opposite ...

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by wayne2824
Fri Feb 14, 2014 10:44 pm
 
Forum: General Discussion
Topic: The effect of ethanol on peroxidase activity
Replies: 1
Views: 1051

Yeast Fermenetation on Different Sugars

Hello all. I had conducted an experiment in determining if four different sugars (glucose, fructose, lactose and sucrose) can be fermented by yeast via monitoring carbon dioxide production and measuring ethanol concentration. At then end of the experiment, it showed that fructose has the highest ...

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by zinoria
Fri Sep 13, 2013 1:47 pm
 
Forum: Microbiology
Topic: Yeast Fermenetation on Different Sugars
Replies: 1
Views: 1199

Differentiating media for yeast

Hi... Can anyone tell me the media which can be used to differentiate between different strains of yeast (e.g. different strains of S.cerevisae). I have used PDA for growth but colony morphology of all the strains seems alike. Kindly help me if any such media is available ...

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by choozi
Tue Jul 16, 2013 5:29 pm
 
Forum: Microbiology
Topic: Differentiating media for yeast
Replies: 0
Views: 553

Dry Yeast Production

Hi... I am facing a problem in dry yeast production ( as available in commercial packets). I have some of very good strains of yeast in plates and slants. It seems quite tedious to stepwise multply the yeast for batch process. I realay dont ...

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by choozi
Mon Jul 15, 2013 3:52 pm
 
Forum: Microbiology
Topic: Dry Yeast Production
Replies: 0
Views: 485
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