Scay Beez
Active member
Definition of fermentation with fermented foods as the focus:
The scientific meaning of fermentation is the energy-yielding anaerobic metabolism of a nutrients, such as sugars, without oxidation. Fermentation converts these nutrients mainly into lactic acid, acetic acid, and ethanol.
These are fermentation end product of some microorganisms:
* Saccharomyces: ethyl alcohol and carbon dioxide
* Streptococcus and Lactobacillus: lactic acid
* Propionibacterium: propionic acid, acetic acid, and carbon dioxide
* Escherichia coli: acetic acid, lactic acid, succinic acid, ethyl alcohol, carbon
dioxide, and hydrogen
* Enterobacter: formic acid, ethyl alcohol, 2,3-butanediol, lactic acid, carbon
dioxide, and hydrogen
* Clostridium: butyric acid, butyl alcohol, acetone, isopropyl alcohol, carbon dioxide,
and hydrogen
In a broader meaning, fermentation refers to the growth of microorganisms on food. Here no distinction is made between aerobic (oxygen is used) and anaerobic (no oxygen is used) metabolism. We will here use this broader meaning of fermentation. Fermentation will gradually change the characteristics of the food by the action of enzymes, produced by some bacteria, molds and yeasts.
A little bit of fermented foods information on this site.
http://www.tempeh.info/fermentation/fermentation.php
- sbz
The scientific meaning of fermentation is the energy-yielding anaerobic metabolism of a nutrients, such as sugars, without oxidation. Fermentation converts these nutrients mainly into lactic acid, acetic acid, and ethanol.
These are fermentation end product of some microorganisms:
* Saccharomyces: ethyl alcohol and carbon dioxide
* Streptococcus and Lactobacillus: lactic acid
* Propionibacterium: propionic acid, acetic acid, and carbon dioxide
* Escherichia coli: acetic acid, lactic acid, succinic acid, ethyl alcohol, carbon
dioxide, and hydrogen
* Enterobacter: formic acid, ethyl alcohol, 2,3-butanediol, lactic acid, carbon
dioxide, and hydrogen
* Clostridium: butyric acid, butyl alcohol, acetone, isopropyl alcohol, carbon dioxide,
and hydrogen
In a broader meaning, fermentation refers to the growth of microorganisms on food. Here no distinction is made between aerobic (oxygen is used) and anaerobic (no oxygen is used) metabolism. We will here use this broader meaning of fermentation. Fermentation will gradually change the characteristics of the food by the action of enzymes, produced by some bacteria, molds and yeasts.
A little bit of fermented foods information on this site.
http://www.tempeh.info/fermentation/fermentation.php
- sbz