Fuels and industrial chemicals.
The favorite subject of recent literature on biotechnical processes has been ethanol fermentation. This review covers a number of new technics developed, including immobilized biocatalyst technology and bacterial fermentations. Reference is also made to recent work on whey, starch, inulin, and cellulosic materials as substrates for ethanol production. Renewed interest in acetonebutanol fermentation for solvent and liquid fuel production has also been clearly evident during the last two years. Biotechnical production of organic acids has been considered as an alternative route to chemical feedstocks. New developments in amino acid, methane, hydrogen, and hydrocarbon production, and on hydrocarbon oxidation are also briefly covered.
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Helsinki University of Technology, Department of Chemistry, Laboratory of Biochemistry and Food Technology, Espoo, Finland.