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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Hemicellulosic ethanol production by immobilized cells of Scheffersomyces stipitis: Effect of cell concentration and stirring

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Author(s):
Milessi, Thais S. S. [1] ; Antunes, Felipe A. F. [1] ; Chandel, Anuj K. [1] ; da Silva, Silvio S. [1]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Engn Sch Lorena, Dept Biotechnol, Lorena - Brazil
Total Affiliations: 1
Document type: Journal article
Source: BIOENGINEERED; v. 6, n. 1, p. 26-32, JAN-FEB 2015.
Web of Science Citations: 7
Abstract

Bioconversion of hemicellulosic hydrolysate into ethanol plays a pivotal role in the overall success of biorefineries. For the efficient fermentative conversion of hemicellulosic hydrolysates into ethanol, the use of immobilized cells system could provide the enhanced ethanol productivities with significant time savings. Here, we investigated the effect of 2 important factors (e.g., cell concentration and stirring) on ethanol production from sugarcane bagasse hydrolysate using the yeast Scheffersomyces stipitis immobilized in calcium alginate matrix. A 2(2) full factorial design of experiment was performed considering the process variables- immobilized cell concentration (3.0, 6.5 and 10.0g/L) and stirring (100, 200 and 300rpm). Statistical analysis showed that stirring has the major influence on ethanol production. Maximum ethanol production (8.90g/l) with ethanol yield (Yp/s) of 0.33g/g and ethanol productivity (Qp) of 0.185g/l/h was obtained under the optimized process conditions (10.0g/L of cells and 100rpm). (AU)

FAPESP's process: 08/57926-4 - Research and development aiming at the integrated exploitation of sugarcane bagasse for the biotechnological production of lignocellulosic ethanol
Grantee:Silvio Silvério da Silva
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Thematic Grants
FAPESP's process: 10/13828-9 - Fermentative process to obtaining second GENERATIOL ethanol from sugarcane hemicellulosic hydrolysate in a basket type STR bioreactor using immobilized cells
Grantee:Thais Suzane Milessi Esteves
Support Opportunities: Scholarships in Brazil - Master