Dictionary » L » Lactic

Lactic

Definition

adjective

(1) Of, relating to, or obtained from sour milk or whey.

(2) Of, pertaining to, or involving the production of lactic acid, as lactic fermentation.


Supplement

Word origin: From Latin lactis (“‘of milk’”), genitive form of lac (“‘milk’”).
Related forms: lactate (noun or verb), lactation (noun)

Related terms:


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Results from our forum


How does pH change during sporulation? - Help

... They were only inoculated, left on a shaker, and samples. At no point were nutrients added/removed. At first I thought maybe it had to do with lactic acid production if the thing is anaerobic...but I think my species is aerobic/facultative (commonly found in soil, actually). So I really doubt ...

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by keetner
Mon Oct 22, 2012 10:22 pm
 
Forum: Microbiology
Topic: How does pH change during sporulation? - Help
Replies: 2
Views: 1290

Re: Stomach bloating and weight gain

... milk protein and for others it's both. To eliminate completely you need to avoid anything that's made with milk or a derivative of milk: lactose, lactic acid, whey, casein, caseinate. It can be in virtually anything and if you're sensitive even the smallest amount can cause a problem so in order ...

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by Carrieo
Thu Mar 29, 2012 10:12 pm
 
Forum: Physiology
Topic: Stomach bloating and weight gain
Replies: 451
Views: 2542760

Why is my negative control showing results?

Hi there, so I used MRS agar to grow lactic acid bacteria. As a negative control, I used a neutral pH, 7 as suggested by members on this forum. I expected no growth of lactic acid bacteria. However, I observed there was still quite a considerable ...

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by ilovebiology77
Wed Feb 29, 2012 4:11 pm
 
Forum: Microbiology
Topic: Why is my negative control showing results?
Replies: 3
Views: 1024

Are there any pH indicators which can kill bacteria?

I'm thinking of using bromocresol purple to identify lactic acid bacteria colonies but was wondering whether there are any I should definitely avoid as it could kill or inhibit the bacteria in any way? Thank you :)

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by ilovebiology77
Tue Feb 28, 2012 7:56 pm
 
Forum: Microbiology
Topic: Are there any pH indicators which can kill bacteria?
Replies: 2
Views: 861

What is the positive control and negative control?

Just what benefit or criterion are you evaluating? As they establish the pH that preserves the product - why would you consider lactic acid bacteria per se "spoilage " bacteria? As you say, laxctic acid bacteria do not grow and slowly die off at pH around 4 . Suggest pH 2 is ...

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by JorgeLobo
Tue Feb 28, 2012 1:48 am
 
Forum: Microbiology
Topic: What is the positive control and negative control?
Replies: 9
Views: 3244
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