Yeasts industrial water supplies

An examination of stored industrial water supplies showed that 98% of the contaminants were Gram-ne live bacteria other organisms isolated were MrcrococcMv spp., Cytophaga spp., yeast, yeast-like fungi and actinomycetes. 

Interest in gas absorption in oil/water dispersions has increased with the emergence of biotechnology, because organic liquids are utilized as carbon sources in different industrial fermentation processes (e.g. paraffins in the fermentation of yeast). A dispersion process in a gas/liquid/liquid (G/I/L) system is involved in the supply of oxygen to such a material system, if biomaterial as an extremely fine dispersion of a solid phase is disregarded. 

A second important natural source of ethanol provides a convenient supply of this reactive molecule. Ethanol is produced by yeast cells when they ferment the sugars and starches in plant materials, as discussed in Figure 18.13. Fermentation produces much smaller quantities of ethanol than does the reaction between ethene and water it is used in industry mainly to produce the ethanol in alcoholic beverages. 

---