Yeast
The yeast Saccharomyces cerevisiae is used for fermentation. http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae
its a gram negative anaerobic bacteria used to ferment glucose and produce ethanol.
The active cultures used to ferment olives are:Lactobacillus plantarum and Leuconostoc mesenteroidesboth are common lactic acid bacteria.
Lactobacillus ferment is a compound created by the fermentation of the Lactobacillus bacteria. It is used in skin treatments like acne since the good bacteria will help cut back on the bad acne causing bacteria.
Any grain or combination of grains may be used to ferment and used to make bread. The bread will contain no alcohol because the heat will drive the alcohol out of the bread while baking.
Ingredients
In some tanning processes, yes. But not in others. One very old process for tanning leather used layers of leather and animal dung, it was allowed to ferment for months. That used bacteria and fungi, but nobody knew it when the process was developed.
Yeast was used to ferment wine beer and vinegar.
There are several different techniques used to ferment foods. These techniques include aging, using brine, and applying molds or active bacteria.
Milk. Yoghurt is made in the same way a cheese. Special bacteria are used to ferment the milk to create one or the other.
Tibicos are a culture of bacteria and yeasts. The grains produced are used to create a carbonated beverage that is fermented.
The bacteria that is used in winemaking is called 'yeast' or 'wine yeast'. Yeast are not bacteria. Yeast are used to ferment juice and make wine. The traditional yeast is Saccharomyces cerevisiae. Bacteria is also used for the malolactic fermentation of red wines and some whites. This is a decarboxylation of malic acid to lactic acid. The bacteria used is Oenococcus oeni.