Industrial Fermentation Technology Quiz

Fermentation includes metabolic pathways that produce chemical changes in organic biomolecules through the action of enzymes. In biochemistry, it is narrowly demarcated as the extraction of energy from carbohydrate molecules in the absence of oxygen. In the biotechnology industry, it may more broadly refer to any process in which the activity of microorganisms brings about a desirable change to a foodstuff or beverage.

The science of fermentation is known as zymology.

Some chemoorganotrophic microbes do not respire because either they lack electron transport chains or they repress the synthesis of electron transport chain components under anoxic conditions, making anaerobic respiration impossible.

<p>Many microorganisms solve this problem by slowing or stopping pyruvate dehydrogenase activity and using pyruvate or one of its derivatives as an electron acceptor for the reoxidation of NADH in a fermentation process.</p> Signup and view all the answers

<p>There are many kinds of fermentations, and they often are characteristic of particular microbial groups.</p> Signup and view all the answers