scholarly journals Optimization of bioethanol production from simultaneous saccharification and fermentation of pineapple peels using Saccharomyces cerevisiae

2018 ◽  
Vol 22 (1) ◽  
pp. 54
Author(s):  
O Oiwoh ◽  
B.V. Ayodele ◽  
N.A. Amenaghawon ◽  
C.O. Okieimen
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Simultaneous Saccharification And Fermentation ◽  
Bioethanol Production ◽  
Simultaneous Saccharification

scholarly journals Bioethanol Production from Several Tropical Wood Species using Simultaneous Saccharification and Fermentation Processes

2017 ◽  
Vol 4 (1) ◽  
pp. 106-116
Author(s):  
M. Daud ◽  
Wasrin Syafii ◽  
Khaswar Syamsu
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Wood Species ◽  
Simultaneous Saccharification And Fermentation ◽  
Dry Mass ◽  
Bioethanol Production ◽  
Yeast Saccharomyces Cerevisiae ◽  
Tropical Wood ◽  
Kraft Process ◽  
Ssf Process ◽  
Simultaneous Saccharification

The study was conducted to determine the best method of hydrolysis (saccharification) and fermentation for bioethanol production using simultaneous saccharification and fermentation process. Three different tropical wood species namely gmelina wood (Gmelina sp.), pine wood (Pinus merkusii) and oil palm (Elaeis guineensis Jacq.) were pre-treated using kraft process and then converted into bioethanol using simultaneous saccharification and fermentation (SSF) processes. The pulp produced by kraft process was analized to determine their chemical properties before treatments. SSF was performed in 500 ml fermentors with total slurry of 200 ml. The substrate and nutrient media were autoclaved (121ºC and 20 min). The samples diluted to 2.5% (w/v) of total slurry were used as substrate. The enzyme preparation used commercial cellulase enzyme. The amount of cellulase added was 4 and 8% (w/w) of dry mass of samples. All SSF process was conducted by inoculating yeast Saccharomyces cerevisiae into fermentor in the amount of 10% (v/v) 1.5 x 109 CFU/cc. The SSF experiments run for 96 h, and the data were investigated periodically every 24 h. The results showed total sugar and reducing sugar tended to decrease with time of inoculation whereas ethanol concentration increases significantly. The growth of yeast Saccharomyces cerevisiae tended to incease in initial inoculation and decrease by the end of inoculation. The best method of hydrolysis (saccharification) and fermentation using SSF process for all tropical wood species tested were using cellulase 8% of dry mass (DM) and 10% (v/v) of Saccharomyces cerevisiae which produced bioethanol with concentration of 0.98; 0.57 and 0.51% for gmelina, pine and oil palm respectively and produced yields 11.21, 5.85 and 3.20%, in that order. 

Production and optimization of cellulase from agricultural waste and its application in bioethanol production by simultaneous saccharification and fermentation

2016 ◽  
Vol 27 (1) ◽  
pp. 22-35 ◽  
Author(s):  
Elsa Cherian ◽  
M. Dharmendira Kumar ◽  
G. Baskar
Keyword(s):  
Design Methodology ◽  
Simultaneous Saccharification And Fermentation ◽  
Agricultural Waste ◽  
Cellulase Production ◽  
Reducing Sugar ◽  
Bioethanol Production ◽  
Corn Cob ◽  
Content Type ◽  
Optimized Conditions ◽  
Simultaneous Saccharification

Purpose – The purpose of this paper is to optimize production of cellulase enzyme from agricultural waste by using Aspergillus fumigatus JCF. The study also aims at the production of bioethanol using cellulase and yeast. Design/methodology/approach – Cellulase production was carried out using modified Mandel’s medium. The optimization of the cellulase production was carried out using Plackett-Burman and Response surface methodology. Bioethanol production was carried out using simultaneous saccharification and fermentation. Findings – Maximum cellulase production at optimized conditions was found to be 2.08 IU/ml. Cellulase was used for the saccharification of three different feed stocks, i.e. sugar cane leaves, corn cob and water hyacinth. Highest amount of reducing sugar was released was 29.1 gm/l from sugarcane leaves. Sugarcane leaves produced maximum bioethanol concentration of 9.43 g/l out of the three substrates studied for bioethanol production. Originality/value – The present study reveals that by using the agricultural wastes, cellulase production can be economically increased thereby bioethanol production.

Increase in bioethanol production yield from triticale by simultaneous saccharification and fermentation with application of ultrasound

2011 ◽  
Vol 87 (2) ◽  
pp. 170-176 ◽  
Author(s):  
Dušanka J. Pejin ◽  
Ljiljana V. Mojović ◽  
Jelena D. Pejin ◽  
Olgica S. Grujić ◽  
Siniša L. Markov ◽  
...  
Keyword(s):  
Simultaneous Saccharification And Fermentation ◽  
Production Yield ◽  
Bioethanol Production ◽  
Simultaneous Saccharification
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