RESEARCH PAPER Energy-saving and by-products-free production of ethanol from granular corn starch
Year: 2014
Type: article
Abstract: Intense development of the transport sector and a rise in the prices of fossil fuels boost the demand for fuels from alternative sources of energy, including biofuels. Thus, new energy-efficient technologies of fuel production from renewable resources are being developed. Accordingly, we attempted to create a technology of bioethanol production by simultaneous enzymatic hydrolysis and fermentation of native corn starch. In our work we used commercially available STARGEN 001 enzymatic preparation for native corn starch hydrolyzis, and yeast Saccharomyces cerevisiae strain Red Star Ethanol Red for it’s fermentation. A major part of the research was on developing a fermentation technology with repeated full recirculation of stillage liquid fraction. It has been shown that a completely effluentless ethanol production with separation of stillage solid fraction and using the liquid fraction to prepare the next portion of corn mash is possible. Thus the process can proceed for several months without any effluent.
Source: Biotechnologia
Authors: Daria Szymanowska, Włodzimierz Grajek
Institution: Poznań University of Life Sciences
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2334880611