DOI: 10.1039/A706088B
(Paper)
Reference Section for: Analyst, 1998, 123, 497-502
Bioconversion of solid food wastes to ethanol
(Note: The full text of this document is currently only available in the PDF Version )
Jothi V. Kumar, Rose Mathew and Abolghasem Shahbazi
Abstract
Solid food processing wastes and by-products are cofermented with cheese whey to produce ethanol. The experimental procedure involves the use of an enzymatic process to convert starch and lactose into fermentable sugars. These reducing sugars are then fermented to alcohol by distiller’s dried yeast and a high-ethanol tolerant yeast, Saccharomyces cerevisiae. Cheese whey is used as a wetting agent and provides macro- and micronutrients for the microorganisms. Cofermenting food processing wastes with cheese whey, in the presence of high- and low-temperature enzymes, induces a 33-36% increase in alcohol yield. This procedure also significantly reduces the fermentation time from 60 to 12 h.
References
- S. L. Chen and F. Gutmanis, Process Biochem., 1982, 2 CAS.
- S. L. Chen, Biotechnol. Bioeng., 1981, 23, 1827 CrossRef CAS.
- A. Garcia, III., J. R. Fischer and E. L. Ianotti, Energy Agric., 1984, 3, 137 Search PubMed.
- J. A. Marlatt and R. Datta, Biotechnol. Prog., 1986, 2, 23 CAS.
- P. Bajpai and P. K. Bajpai, Biotechnol. Appl. Biochem., 1989, 11, 155 Search PubMed.
- G. Ramponi, G. Liguri, M. Stefani, N. Taddei and P. Nassi, Biotechnol. Appl. Biochem., 1988, 10, 408 Search PubMed.
- B. Tchorbanov and G. Lazarova, Biotechnol. Appl. Biochem., 1988, 10, 301 Search PubMed.
- P. J. Whalen, K. M. Shahani and S. R. Lowry, Biotechnol. Bioeng. Symp., 1985, 15, 117 Search PubMed.
- Novo Enzymes in the Production of Ethanol from Starch–Containing Crops, Novo Industries, Bagsvaerd, 1981 Search PubMed.
- D. H. Lowery, A. L. Rosebrough and R. J. Randall, J. Biol. Chem., 1951, 193, 265 CAS.
- P. Aman and K. Hesselman, Swed. J. Agric. Res., 1984, 14, 135 Search PubMed.