Optimization of the Pretreatment of the Mixture of Cassava Peelings and Pineapple Fibers Using the Organosolv Process for the Bioethanol Production| Chapter 9 | Scientific Research, New Technologies and Applications Vol. 2

The biggest concern of households in our different municipalities remains access to stable, quality energy, respect for the environment, and above all a lower cost. The increase in oil prices and greenhouse gas emissions have led to the search for substitutes for fossil fuels. In Cameroon, the abundance of lignocellulosic resources is inherent to agricultural activity. Production of bioethanol remains a challenge given the crystallinity of cellulose and the presence of the complex. The pretreatment aimed to solubilize the lignin fraction and to make cellulose more accessible to the hydrolytic enzymes was done using the organosolv process. Mathematical modeling was performed to point out the effect of the temperature on the kinetics of the release of the reducing sugars during the pretreatment. The aim of the study is to optimize the pretreatment of the mixture of cassava peelings and pineapple fibers for bioethanol production. Two mathematical models such as SAEMAN's model and Response surface methodology were used. The first shows that the kinetic parameters of the hydrolysis of the cellulose and reducing sugar are: 0.05089 min^-1, 5358.1461 J.mol^-1, 1383.03691 min^-1, 51577.6100 J.mol^-1 respectively. In order to better control this pre-treatment step, modeling by the second model was used. Temperature is the factor having the most positive influence whereas, ethanol concentration is not an essential factor. The model equation reveals that this positive contribution is significant on the Response surface and not significant on the cellulose. To release the maximum, an organosolv pre-treatment of this substrate should be carried out at 209.08°C for 47.60 min with an ethanol-water ratio of 24.02%. Organosolv pre-treatment is an effective process for the delignification of the lignocellulosic structure. To improve this work, it would be wise to carry out a technical-economic analysis of the process and make an energy assessment of the installation.

 

Author (s) Details

 

Jeanne Atchana
Department of Chemical Engineering, at the Higher Teacher’s Training School, University of Douala, Cameroon.

 

Paul Nestor Djomou Djonga
Department of Textile and Leather Engineering, National Advanced School of Engineering of Maroua, Maroua, Cameroon and Department of Environmental Engineering, National Advanced School of Public Works, PO Box 510 Yaoundé, Cameroon.

Judith Ngbara
Department of Physics, Faculty of Science, University of Bangui PO Box 908, Bangui, Central African Republic.

 

André Talla
Department of Environmental Engineering, National Advanced School of Public Works, PO Box 510 Yaoundé, Cameroon and Department of Energy Engineering, National Advanced School of Engineering, University of Yaoundé, Cameroon.

 

George Elambo Nkeng
Department of Environmental Engineering, National Advanced School of Public Works, PO Box 510 Yaoundé, Cameroon.

 

Doumbia Awa Seronfe
Centre de Recherche et de Formation pour l’Industrie Textile (CERFITEX), BP: 323 Ségoul, Mali.

 

Please see the book here:- https://doi.org/10.9734/bpi/srnta/v2/1015

Investigating the Interactions between Cultural Conditions in the Simultaneous Saccharification and Co-fermentation of Cassava Peels using Saccharomyces cerevisiae | Chapter 7 | Geography, Earth Science and Environment: Research Highlights Vol. 2

The development of cost-effective and efficient bioethanol production is essential for advancing renewable energy in Nigeria. Cassava peels, a widely available agro-waste material, provide a renewable and low-cost feedstock for bioethanol production. This study optimized bioethanol production from cassava peels by examining the impact of key process variables—pH, temperature, glucose concentration, inoculum size, and potassium nitrate—on bioethanol yield using a quadratic model and response surface methodology. Fermentation was conducted using Saccharomyces cerevisiae over a 120-hour period. The findings demonstrated that each of the key variables significantly influenced ethanol yield, with pH, temperature, glucose concentration, inoculum size, and potassium nitrate exhibiting statistically significant linear effects (p < 0.0001). Additionally, two-way interactions between these factors were also significant (p < 0.05), with temperature identified as the most influential variable on ethanol yield, closely followed by the interaction between glucose concentration and potassium nitrate. These results highlight the importance of optimizing these conditions for bioethanol production and highlight that the biochemical production of bioethanol from cassava peels is shaped by the combined effects of these variables. The study concludes that cassava peels are a promising sustainable and cost-effective feedstock for bioethanol production. Future research should explore the scalability of this optimized process for industrial applications, including pilot-scale and commercial production. Further investigation into other parameters, such as fermentation time, pressure, and alternative yeast strains, could enhance bioethanol yield. A comprehensive cost-benefit analysis and environmental impact assessment are also recommended to evaluate the economic and environmental viability of large-scale production. Government and industry stakeholders are encouraged to implement policies and incentives promoting agro-waste materials like cassava peels in renewable energy production, thereby fostering sustainability and reducing waste.

 

Author (s) Details

Temidayo O. Enetanya
Federal University of Agriculture, Abeokuta, Nigeria.

 

Olusegun Oguntoke
Federal University of Agriculture, Abeokuta, Nigeria.

 

Frank A. Orji
Federal Institute of Industrial Research, Oshodi, Nigeria.

 

Sarafadeen O. Kareem
Federal University of Agriculture, Abeokuta, Nigeria.

 

Oluseyi Z. Ojekunle
Federal University of Agriculture, Abeokuta, Nigeria.

 

Chinonso I. James
Federal Institute of Industrial Research, Oshodi, Nigeria.

 

Please see the book here:- https://doi.org/10.9734/bpi/geserh/v2/3426

Investigating the Interactions between Cultural Conditions in the Simultaneous Saccharification and Co-fermentation of Cassava Peels using Saccharomyces cerevisiae | Chapter 7 | Geography, Earth Science and Environment: Research Highlights Vol. 2

 

The development of cost-effective and efficient bioethanol production is essential for advancing renewable energy in Nigeria. Cassava peels, a widely available agro-waste material, provide a renewable and low-cost feedstock for bioethanol production. This study optimized bioethanol production from cassava peels by examining the impact of key process variables—pH, temperature, glucose concentration, inoculum size, and potassium nitrate—on bioethanol yield using a quadratic model and response surface methodology. Fermentation was conducted using Saccharomyces cerevisiae over a 120-hour period. The findings demonstrated that each of the key variables significantly influenced ethanol yield, with pH, temperature, glucose concentration, inoculum size, and potassium nitrate exhibiting statistically significant linear effects (p < 0.0001). Additionally, two-way interactions between these factors were also significant (p < 0.05), with temperature identified as the most influential variable on ethanol yield, closely followed by the interaction between glucose concentration and potassium nitrate. These results highlight the importance of optimizing these conditions for bioethanol production and highlight that the biochemical production of bioethanol from cassava peels is shaped by the combined effects of these variables. The study concludes that cassava peels are a promising sustainable and cost-effective feedstock for bioethanol production. Future research should explore the scalability of this optimized process for industrial applications, including pilot-scale and commercial production. Further investigation into other parameters, such as fermentation time, pressure, and alternative yeast strains, could enhance bioethanol yield. A comprehensive cost-benefit analysis and environmental impact assessment are also recommended to evaluate the economic and environmental viability of large-scale production. Government and industry stakeholders are encouraged to implement policies and incentives promoting agro-waste materials like cassava peels in renewable energy production, thereby fostering sustainability and reducing waste.

 

Author(s)details:-

 

Temidayo O. Enetanya
Federal University of Agriculture, Abeokuta, Nigeria.

 

Olusegun Oguntoke
Federal University of Agriculture, Abeokuta, Nigeria.

 

Frank A. Orji
Federal Institute of Industrial Research, Oshodi, Nigeria.

 

Sarafadeen O. Kareem
Federal University of Agriculture, Abeokuta, Nigeria.

 

Oluseyi Z. Ojekunle
Federal University of Agriculture, Abeokuta, Nigeria.

 

Chinonso I. James
Federal Institute of Industrial Research, Oshodi, Nigeria.

 

Please See the book here :- https://doi.org/10.9734/bpi/geserh/v2/3426

Engine Power Optimation with Bioethanol Fuel: An Experimental Study | Chapter 11 | Research and Developments in Engineering Research Vol. 4

 This study aims to decide engine capacity after joining pertalite fuel accompanying bioethanol from cassava. This research is experimental research. The percentage of the fuel ratio resides of a mixture of 10%, 15% and 20%. In this study, the situation was the use of a variation of pertalite fuel combination with an flammable liquid combination from the fermentation, distillate, and dehydration processes of cassava of the cassava type of manggu on transformer performance in the form of capacity on a 150 CC vehicle.The topmost power profit acquired from the process of testing the combination of pertalite and ethanol fuel from the effervescence, distillation, and aridity processes of mangu cassava to RPM was 11.77 kW in the mixture of pertalite and intoxicating fuel from the effervescence, distillation and aridity of mangu cassava. 20% PE, at 9,000rpm.

Author(s) Details:

Andri Setiyawan,
Universitas Negeri Semarang, Indonesia.

Please see the link here: https://stm.bookpi.org/RADER-V4/article/view/10748

Recent Advances Fermentation Technology for Bioethanol Production as One of Potential Energy Sources| Chapter 2 | Recent Progress in Science and Technology Vol. 4

 Rising the concern of energy security and the instability in fossil fuels price in addition to the adverse effect of these fossil fuels on the environment, made the world searching for alternative energy sources that are sustainable and clean to the environment. One of these alternative energies is bioethanol. Bioethanol is produced by microbial fermentation either from sugar crops or starchy grain crops depending on their availability as first-generation carbon sources for bioethanol production. These carbon sources are edible in nature and could lead into food-vs-fuel conflict and famine specially in developing countries. Inedible lignocellulosic biomass such as abundant agriculture byproducts and forestry waste are developed as second-generation carbon sources for bioethanol production. However so far, the excessive production cost of bioethanol from these lignocellulosic biomasses limiting the application of this technology for commercialization on large scale. In addition to the first and second generations of bioethanol technologies, there is third generation of carbon sources that currently under investigation for bioethanol production by gasification a wide verities of biomass sources into syngas (SG). Syngas is a mixture of carbo dioxide, carbon monoxide, and hydrogen. This syngas can be utilized as a carbon source for microbial fermentation using anaerobic bacteria such as Clostridium sp. to convert syngas into bioethanol and organic acids. In general, the interest in bioethanol as an alternative energy to fossil oil is due to its favorable properties as energy source.

Author(s) Details:

Osama O. Ibrahim,
Biotechnology,Bio Innovation LLC,7434 Korbel Dr.Gurnee IL. 60031, USA.

Please see the link here: https://stm.bookpi.org/RPST-V4/article/view/9439