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2. Industrial production conditions
2.1 Raw materials
The raw materials used must meet the nutritional requirements imposed by the growth and multiplication of yeast cells. If yeast is produced on a medium with a defined composition, based on glucose as a carbon substrate and ammonium and phosphorus salts as sources of nitrogen and phosphate, the culture medium will need to be supplemented with mineral salts, vitamins and trace elements. A typical medium composition is given in Plomb's patent
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Unit operations. Chemical reaction engineering
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Industrial production conditions
Product sheet
Economic data
The total baker's yeast market, expressed in 32% dry matter pressed yeast equivalent, is estimated at 2,500,000 t (2000 value), and is growing by around 2% a year.
This production represents large tonnages, which means :
major investments to create or expand production capacity. As fresh yeast has a limited lifespan, production must be decentralized...
References
Main producers
The main producer of baker's yeast is the Lesaffre group (France). It is followed by :
Mauri (Burns Philp group - Australia) http://www.burnsphilp.com
Gist Brocades (Holland, DSM Group) http://www.dsm.com
Pakmaya...
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