Answer :
Bacteria cultures that have been allowed to undergo fermentation have been used commercially for centuries in the production of ALCOHLIC BEVERAGES .
Answer:
The correct answer would be fermented beverages.
Microbes specially yeast have been used for centuries for the production of fermented beverages like beer, wine, whisky, brandy, rum et cetera.
For example, Saccharomyces cerevisiae is used for fermenting malted cereals and fruit juices which produce ethanol.
Production of different types of alcoholic drinks depends up on the type of raw material and type of processing.
For example, wine and beer are produced without distillation whereas brandy, whiskey and rum are produces by distillation of fermented broth.
With the advancement of technology in fermentors and genetic engineering microbes are now used to produce variety of substances such as antibiotics (penicillin), chemicals (citric acid, lactic acid et cetera), enzymes, and bioactive molecules.