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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP
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    Abstract - Issue Jul 2019, 40 (4)                                     Back


nstantaneous and historical temperature effects on a-pinene

DOI : http://doi.org/10.22438/jeb/40/4(SI)/JEB_18

 

Production of bioethanol from lignocellulosic banana peduncle waste using Kluveromyces marxianus

 

Paper received: 30.10.2018???????????????????????????????????????????????????????????? Revised received: 06.03.2019????????????????????????????????????????????????????????????? Accepted: 16.03.2019

 

 

Authors Info

E. R. Sathendra1, G. Baskar2* and R. Praveenkumar1

  

1Department of Biotechnology, Arunai Engineering College, Tiruvannamalai-606 603, India

2Department of Biotechnology,

St. Joseph's College of Engineering, Chennai-600 119, India

 

    

*Corresponding Author Email :

basg2004@gmail.com

 

 

 

Abstract

 

Aim: Bioethanol production from lignocellulosic material (banana peduncle) as a substrate using microorganism Klyveromyces marxianus MTCC 1389 was carried out in this study.    

 

Methodology: The substrate was prepared by mechanical grinding, followed by dilute acidic treatment using H2SO4 with various concentrations such as 1, 2 and 3%, respectively. Temperature was maintained at 150?C for breaking the glycosidic linkage and converting into monomer. The chemical composition and concentration of various constituents in the raw material was characterized. Fermentation was carried out at various temperatures (25, 30, 35 and 40?C) and pH (4.0, 4.5, 5.0 and 5.5). Batch fermentation kinetics of bioethanol production was studied.    

 

Results: The maximum biomass and ethanol yield was achieved at 40?C and pH 4.5 with specific growth rate (μ) 0.021 hr-1, biomass yield (Yx/s) 14.7 g l-1 and bioethanol yield (Yp/s) 21.89 g l-1.    

 

Interpretation: Lignocellulosic material obtained from waste banana peduncle can be utilized for bioethanol production.

 

Key words: Acid hydrolysis, Banana peduncle, Bioethanol, Klyveromyces marxianus, Lignocellulose

 

 

 

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