COMPARATIVE STUDY OF DIFFERENT METHODS OF HYDROLYSIS AND FERMENTATION FOR BIOETHANOL OBTAINING FROM INULIN AND INULIN RICH FEEDSTOCK

Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry. 2012;13(1):63-68

 

Journal Homepage

Journal Title: Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry

ISSN: 1582-540X (Print)

Publisher: Alma Mater Publishing House "Vasile Alecsandri" University of Bacau

Society/Institution: "Vasile Alecsandri" University of Bacau

LCC Subject Category: Technology: Chemical technology

Country of publisher: Romania

Language of fulltext: English, French

Full-text formats available: PDF

 

AUTHORS

Camelia (Bonciu) Neagu
Gabriela Bahrim

EDITORIAL INFORMATION

Blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 6 weeks

 

Abstract | Full Text

Bioethanol serves as liquid fuel or gasoline enhancer in many countries in response to the progressive depletion of the world’s energetic resources. Production of bioethanol from inulin rich raw materials has been a subject of great interest for many years due to the large amount of existing and not completely developed technologies. The aim of this work was to study three different methods for hydrolysis and fermentation of pure inulin and Jerusalem artichoke flour: separate hydrolysis by A. niger MIUG 1.15 strain as active producer of inulinase, in stationary phase and under agitation, followed by fructose fermentation and simultaneous hydrolysis and fermentation of inulin and Jerusalem artichoke flour respectively, in order to increase the yield of biotransformation of substrate into ethanol. The highest amount of ethanol was formed during simultaneous hydrolysis and fermentation, for both pure inulin and Jerusalem artichoke (Helianthus tuberosus) tubers used as raw materials, of 16.2 g∙L-1 and 28.1 g∙L-1 respectively.