Global Advanced Research Journal of Microbiology (GARJM) ISSN: 2315-5116

June 2014 Vol. 3(5), pp 072-077

Copyright © 2014 Global Advanced Research Journals

 

Full Length Research Paper

Optimization of Bioethanol production from Jerusalem artichokes powder and fresh tubers

S. Favale1, G.Ciolfi1, S. Moretti1*

 

1Consiglio per la Ricerca e Sperimentazione in Agricoltura – Unità di ricerca per le produzioni enologiche dell’Italia centrale, Velletri (RM) Italy

 

*Corrisponding Author’s Email: simonetta.moretti@entecra.it;

Tel.+39 069630222; Fax +39 069634020 

Accepted 17 January, 2014

 

Abstract

 

A process for ethanol production from sugars released from inulin by hydrolysis was developed with yeast Saccharomyces cerevisiae. The impact of different microorganisms and pH correction on the ethanol fermentation performance was studied. We have shown that a part of the potential inulin of the tuber of Jerusalem artichoke can be fermented without acidic or enzymatic pretreatment prior to fermentation, but this process turns out to be long and uncertain. Saccharomyces cerevisiae was found to efficiently ferment the inulin-containing carbohydrates in Jerusalem artichoke after acidic hydrolysis of inulin at a pH 3.0 at 120° C for 15 minutes. This procedure turns out to be optimal for yield of alcohol and speed of fermentation. The conversion efficiency of inulin-type sugars to ethanol was 99% of the theoretical ethanol yield. 

Keywords: Bioethanol, Inulin, Jerusalem artichoke, Saccharomyces cerevisiae, Fermentation.

 


 

Related Articles


Original Research Article
Engy Yousry El sayed, Eman Mohamoud Ezzat, Rania Ali Amr
Emergence of gram positive bacteria as a causal agents of spontaneous bacterial peritonitis.
Glo. Adv. Res. J. Microbiol May 2014 Vol: 3(4): - [Abstract] [Full Text - PDF] (130 KB)

Current Issue

Viewing Options

View Full Article - PDF
Download Full Article - PDF

Search for Articles

S Favale on Google Scholar
S Favale on Pubmed
G Ciolfi on Google Scholar
G Ciolfi on Pubmed
S Moretti on Google Scholar
S Moretti on Pubmed

Statistics

Viewed 2215
Printed 523
Downloaded 1435
Powered By iPortal Works