Production of ethanol by adsorbed yeast cells

Saccharomyces cerevisiae Mutants Resistant to Catabolite Repression: Use in Cheese Whey Hydrolysate Fermentation

“…Although the conditions used in this study were not optimal, this value is still far below other values reported for glucose fermentation of immobilized S. cerevisiae cells (2,18,20), which are in the range of 50 to 60 g liter-' h-1.…”

Ethanol production using Zymomonas mobilis immobilized on an ion exchange resin

“…Other researchers have obtained similar high productivities with various systems (Arcuri, 1982;Strandberg et al 1982;Bland et al, 1982). --a Daugulis et al (1981) demonstrated that Saccharomyces --cerivisiae could be immobilized on the surface of ion exchange resins and used in a continuous bioreactor for ethanol production. Such a system eliminates the need for cell recycle equipment and maintains a vary hig'n ceii concentration even at high dilution rates (1.44 h-l).…”

Methods for the Immobilization of Microbial Cells

“…have a net negative charge on their surface (Dangulis et al, 1981). The anion-exchange resins varied greatly in their ability to bind the cells.…”

“…High operational stability was found with immobilized yeast cells under limiting growth conditions (Wadaef al., 1980;Larsson and Mosbach, 1979;Cho and Choi, 1981;Williams and Munnecke, 1981;Dangulis et al, 1981;Sitton et al, 1981;Hahn-Hägerdahl and Mattiason, 1982;McGhee et al, 1982;Chieng et al, 1982;Day, 1982;Fukushima and Hanai, 1982) and with immobilized Zymomonas mobilis (Arcuri et al, 1980;Margaritis et al, 1981;. One such approach is the continuous production of ethanol from carbohy drates.…”