Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl
Preferences help
Polish version English version Language
enabled [disable] Abstract
Number of results

Results found: 3

Number of results on page
first rewind previous Page / 1 next fast forward last

Search results

Search:
in the keywords:  SACCHARIFICATION
help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1

Energy-saving and by-products-free production of ethanol from granular corn starch

100%
Szymanowska D., Grajek W.
Biotechnologia
|
2011
|
issue 1
85-91
EN
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.
2

Suitability of thermostable enzymes for improvment of starch processing

100%
Synowiecki J., Grzybowska B.
Biotechnologia
|
2001
|
issue 2
26-35
EN
Commercial processing of starch to mono-and oligosaccharides depends on the availability and properties of the applied enzymes such as -amylase, glucoamylase, -glucosidase and xylose isomerase. Each of these enzymes has a different pH and temperature optimum for use. Therefore starch processing is carried out in the stages of liquefaction, saccharification, and isomerisation. This article discusses the application of thermostable enzymes leading to higher quality products and lower production costs caused by the simplification of the processing.
3

Optimization of simultaneous saccharification and fermentation of the native starch by using response surface method

100%
Bialas W., Wojciechowska D., Szymanowska D., Grajek W.
Biotechnologia
|
2009
|
issue 4
183-199
EN
Ethanol production, by a simultaneous saccharification and fermentation process (SSF) of native starch from corn flour, has been performed by Saccharomyces cerevisiae (Ethanol Red) and granular starch hydrolyzing enzyme (STARGEN 001). The quantitative effects of mash concentration, enzyme dose and pH were investigated by the use a Box?Wilson central composite design protocol. It was found that for native corn starch, maximum ethanol concentration of 110,36 g/l was obtained using a mash concentration of 25%, which resulted in ethanol yield of 85,71%. The optimum conditions for the above yield were found for the enzyme dose of 2,05 ml/kg and pH of 5.0. These results indicated that by using the central composite design, it is possible to determine accurate values of the fermentation parameters for maximum ethanol production.
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.