scholarly journals Hybridization of Selected Nigerian Lignocellulosic Biomass Feedstocks for Bioethanol Production: Modeling and Optimization of Pretreatment and Fermentation Process Parameters Using Response Surface Methodology

2021 ◽  
Author(s):  
Adeolu A. Awoyale ◽  
David Lokhat
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Lignocellulosic Biomass ◽  
Process Parameters ◽  
Fermentation Process ◽  
Bioethanol Production ◽  
Modeling And Optimization ◽  
Biomass Feedstocks ◽  
Production Modeling

scholarly journals Design and Optimization of a Process for Sugarcane Molasses Fermentation bySaccharomyces cerevisiaeUsing Response Surface Methodology

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Nour Sh. El-Gendy ◽  
Hekmat R. Madian ◽  
Salem S. Abu Amr
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Batch Fermentation ◽  
Fermentation Process ◽  
Incubation Temperature ◽  
Operating Conditions ◽  
Quadratic Model ◽  
Optimum Operating ◽  
Sugarcane Molasses ◽  
Bioethanol Production

A statistical model was developed in this study to describe bioethanol production through a batch fermentation process of sugarcane molasses by locally isolatedSaccharomyces cerevisiaeY-39. Response surface methodology RSM based on central composite face centered design CCFD was employed to statistically evaluate and optimize the conditions for maximum bioethanol production and study the significance and interaction of incubation period, initial pH, incubation temperature, and molasses concentration on bioethanol yield. With the use of the developed quadratic model equation, a maximum ethanol production of 255 g/L was obtained in a batch fermentation process at optimum operating conditions of approximately 71 h, pH 5.6, 38°C, molasses concentration 18% wt.%, and 100 rpm.

scholarly journals Optimasi Proses Fermentasi Semi Padat Onggok Singkong Menggunakan Metode Response Surface Methodology (RSM)

2021 ◽  
Vol 21 (2) ◽  
pp. 118-128
Author(s):  
Beni Hidayat ◽  
Udin Hasanudin ◽  
Muhammad Muslihudin ◽  
Syamsu Akmal ◽  
Siti Nurdjanah ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Protein Content ◽  
Response Surface ◽  
Process Parameters ◽  
Fermentation Process ◽  
Starch Content ◽  
Fermentation Time ◽  
Cassava Pulp ◽  
Semi Solid ◽  
Cyanide Content

The application of semi-solid fermentation has been able to increase the potential for using cassava pulp, an underused biomass from starch processing (tapioca), as foodstuffs which are reflected in an increase in protein content up to 7.07% and a decrease in cyanide content to less than 10 mg/kg (8.78 mg/kg). Further process optimization is required if the cassava pulp fermentation process is to be carried out on an industrial scale. This research was aimed to obtain the optimal fermentation process parameters to produce cassava pulp flour with optimal characteristics as foodstuffs. Optimization of the fermentation process was carried out using the Response Surface Methodology (RSM) with the Central Composite Design model. The optimization results using numerical methods show that the optimal characteristics of fermented cassava pulp flour is obtained in the process parameters: starter concentration 1.58-1.65%, ammonium sulphate concentration 1.00%, and fermentation time 75.01-82.53 hours. The optimal process parameters will produce fermented cassava pulp flour with a protein content of 6.40-6.60%, cyanide content of 7.24-7.61 mg/kg, starch content of 58.14-58.37%, dietary fiber content of 15.83-16.65% and an odour score of 4.50-4.53 (maximum score of 5, like very much) which is very potential to be used as foodstuffs.

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