Able Quote by Louis Pasteur
“I propose to provide proof... that just as always an alcoholic ferment, the yeast of beer, is found where sugar is converted into alcohol and carbonic acid, so always a special ferment, a lactic yeast, is found where sugar is transformed into lactic acid. And, furthermore, when any plastic nitrogenated substance is able to transform sugar into that acid, the reason is that it is a suitable nutrient for the growth of the [lactic] ferment.”
About This Quote
Fermentation processes, whether alcoholic or lactic, occur where suitable nutrients like sugar are present, indicating a universal principle of microbial growth.
In simple terms: Yeast ferments where sugar is available.
Provide proper nutrients for desired fermentation.
Themes
Mood
Type
When to use this quote
- brewing
- food preservation
- biotech research
Key Concepts
Questions to Reflect On
- What nutrients optimize specific fermentations?
- How can unwanted microbes be controlled?
Fermentation can be inhibited by contaminants.