Yeasts: Production And Commercial Uses.

Commercial yeast production worldwide exceeds 1.8
million t per annum. The yeasts are used mostly by
the baking industry, but also by the brewing and
distilling industries. Yeast is also a commercial source
of natural flavourings, flavour potentiators and the
dietary supplements.
Yeasts are unicellular eukaryotes, and in several
ways are akin biochemically to higher organisms.
They have been shown to be suitable for the expression
of valuable mammalian and plant proteins, and
have therefore emerged as an important biotechnological
asset in recent years.
The emphasis of this article is on the practical
aspects of the production and preservation of bakers'
yeast.