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Bioethanol Production From Office Waste Using Saccharomyces Cerevisiae Via Simultaneous Saccharification Fermentation Ssf
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Book Synopsis Bioethanol Production from Office Waste Using Saccharomyces Cerevisiae Via Simultaneous Saccharification Fermentation (SSF) by :
Download or read book Bioethanol Production from Office Waste Using Saccharomyces Cerevisiae Via Simultaneous Saccharification Fermentation (SSF) written by and published by . This book was released on 2012 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ethanol Production from Pineapple Waste Using Simultaneous Saccharification Fermentation (SSF) by Cellulase and Yeast by :
Download or read book Ethanol Production from Pineapple Waste Using Simultaneous Saccharification Fermentation (SSF) by Cellulase and Yeast written by and published by . This book was released on 19?? with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Simultaneous Saccharification and Fermentation of Waste Potato Mash to Ethanol by Aspergillus Niger and Saccharomyces Cerevisiae in Biofilm Reactors by : Gulten Izmirlioglu
Download or read book Simultaneous Saccharification and Fermentation of Waste Potato Mash to Ethanol by Aspergillus Niger and Saccharomyces Cerevisiae in Biofilm Reactors written by Gulten Izmirlioglu and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioethanol production is of great interest to meet the renewable energy demand and reduce the negative environmental impacts of petroleum fuel while providing energy security for countries. In order to make ethanol production cost-competitive, inexpensive, and easily available feedstocks are needed as well as novel processing technologies with higher productivities. Industrial wastes are of great interest as a substrate in production of value-added products to reduce the cost, while managing the waste economically and environmentally. Therefore, bio-ethanol production from industrial wastes has gained attention because of its abundance, availability, and rich carbon and nitrogen content. Part of the production cost also includes cost of the enzymes needed for the saccharification step during the starch hydrolyzation, which can be a significant cost depending on the enzymes performances. On the other hand, to achieve high productivity, medium optimization, culture conditions, integrated fermentation methods, and reactor design should be considered. Thus, novel approaches for bioethanol production from starchy industrial wastes have gained attention not only to reduce the production cost, but also to maximize the ethanol productivity. This dissertation aimed to reduce the cost of ethanol production with utilization of starchy waste of potato industry, and evaluate the simultaneous saccharification and fermentation process with a fungal co-culture to eliminate purchased enzyme costs, and, finally, to increase the productivity of ethanol fermentation, in particular by cell immobilization in biofilm reactors. Therefore, medium optimization for co-culture was considered to improve production of ethanol in this study, which was neglected for co-culture so far in the literature. Furthermore, first time simultaneous saccharification and fermentation by co-culture in biofilm reactors was employed to achieve the goal.Glucoamylase is one of the most common enzymes used in the starch industry to break down the starch into its monomers. Glucoamylase production and its activity are highly dependent on medium composition. Therefore, in this study, medium optimization for glucoamylase production was considered to improve the glucoamylase activity. Four fungi were screened for amylase production, and Aspergillus niger van Tieghem was found to be the best glucoamylase-producing fungus. Then, a statistical design, Plackett-Burman design, was used to screen various medium ingredients for glucoamylase production by A. niger, and malt extract, FeSO47H2O, and CaCl22H2O were found to have significant effects on the glucoamylase production. Finally, malt extract, FeSO47H2O, and CaCl22H2O were optimized by using another statistical design, response surface methodology. The results showed that the optimal medium composition for A. niger van Tieghem was 50 g/L of industrial waste potato mash supplemented with 51.82 g/L of malt extract, 9.27 g/L of CaCl22H2O, and 0.50 g/L of FeSO4 7H2O . At the end of the optimization, glucoamylase activity and glucose production were improved 126 and 98% compared to only industrial waste potato mash basal medium and 274.4 U/ml glucoamylase activity and 41.7 g/L glucose levels were achieved, respectively. Additionally, the effect of various medium components on ethanol production by Saccharomyces cerevisiae was evaluated. Yeast extract, malt extract, and MgSO47H2O showed significantly positive effects among the screened medium components, whereas KH2PO4 and CaCl22H2O had a significantly negative effect (p-value
Book Synopsis Lignocellulose Conversion by : Vincenza Faraco
Download or read book Lignocellulose Conversion written by Vincenza Faraco and published by Springer Science & Business Media. This book was released on 2013-06-12 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioethanol has been recognized as a potential alternative to petroleum-derived transportation fuels. Even if cellulosic biomass is less expensive than corn and sugarcane, the higher costs for its conversion make the near-term price of cellulosic ethanol higher than that of corn ethanol and even more than that of sugarcane ethanol. Conventional process for bioethanol production from lignocellulose includes a chemical/physical pre-treatment of lignocellulose for lignin removal, mostly based on auto hydrolysis and acid hydrolysis, followed by saccharification of the free accessible cellulose portions of the biomass. The highest yields of fermentable sugars from cellulose portion are achieved by means of enzymatic hydrolysis, currently carried out using a mix of cellulases from the fungus Trichoderma reesei. Reduction of (hemi)cellulases production costs is strongly required to increase competitiveness of second generation bioethanol production. The final step is the fermentation of sugars obtained from saccharification, typically performed by the yeast Saccharomyces cerevisiae. The current process is optimized for 6-carbon sugars fermentation, since most of yeasts cannot ferment 5-carbon sugars. Thus, research is aimed at exploring new engineered yeasts abilities to co-ferment 5- and 6-carbon sugars. Among the main routes to advance cellulosic ethanol, consolidate bio-processing, namely direct conversion of biomass into ethanol by a genetically modified microbes, holds tremendous potential to reduce ethanol production costs. Finally, the use of all the components of lignocellulose to produce a large spectra of biobased products is another challenge for further improving competitiveness of second generation bioethanol production, developing a biorefinery.
Book Synopsis Lignocellulosic Ethanol Production from a Biorefinery Perspective by : Deepansh Sharma
Download or read book Lignocellulosic Ethanol Production from a Biorefinery Perspective written by Deepansh Sharma and published by Springer Nature. This book was released on 2020-07-20 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview of the multi-dimensional approach for the production of ethanol from lignocellulosic biomass. The sustainability of this biofuel, the current and future status of the technology and its role in waste valorization are also addressed. Bioethanol from lignocellulosic material has emerged as an alternative to the traditional first-generation bioethanol. The book also discusses various pretreatment methods for effective separation of the various components of lignocellulosic feedstock as well as their advantages, and limitations. It describes the valorization of lignocellulosic waste through the production of bioethanol and emphasizes the significance of waste utilization in managing the production cost of the fuel. Finally, the utilization of genetically engineered plants and microorganisms to increase the conversion efficiency is reviewed.
Book Synopsis Advances in 2nd Generation of Bioethanol Production by : Xin Lu
Download or read book Advances in 2nd Generation of Bioethanol Production written by Xin Lu and published by Woodhead Publishing. This book was released on 2021-01-13 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in 2nd Generation of Bioethanol Production presents a comprehensive overview of technologies and strategies for the conversion of lignocellulosic biomass. This includes issues like sustainable production, environmental and economic benefits, and the main hurdles for upscaling and achieving commercial viability. The book assesses the current biomass conversion technologies, their readiness level for commercial production, and applications of bioethanol in bioenergy and chemical feedstock. The essential conversion process of 2nd generation biofuels, including feedstock composition and pretreatment, is then broken down, with special focus on advantages and pitfalls of each feedstock and process. It also explores the advances and challenges of bioprocessing, hydrolysis technologies and simultaneous fermentation of pentose and hexose. Finally, it presents the current status and bottlenecks for industrial production of bioethanol, as well as its future prospects. Its interdisciplinary approach, drawing upon plant biology, chemistry, biochemistry, microbiology, and genetics, makes Advances in 2nd Generation of Bioethanol Production a must-have reference for researchers in academia and industry R&D. It allows them to compare challenges and opportunities of new technologies and identify the gaps where new technology is needed. Practitioners in the industry also benefit from the information on working principles, design and control of the bioethanol production process, highlighting areas where technology innovation and investment should be placed. Graduate students and researchers newly entered in this field find here a key-resource to thoroughly understand the process as well as the fundamentals of bioethanol and bioproducts production from lignocellulosic biomass. - Presents fundamentals and state-of-the-art of available pathways for bioethanol and bioproducts production from lignocellulosic biomass - Discusses key-challenges for large scale production of bioethanol, such as pretreatment and hydrolysis - Covers the specificities of various feedstocks and processes, the role of microorganisms in fermentation, saccharification limitations and challenges in the C5 and C6 fermentation
Book Synopsis Biofuels from Food Waste by : Antoine Prandota Trzcinski
Download or read book Biofuels from Food Waste written by Antoine Prandota Trzcinski and published by CRC Press. This book was released on 2017-08-21 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: According to the UN's Food & Agricultural Organization (FAO), one third of food produced globally for human consumption (nearly 1.3 billion tons) is lost annually. Food waste has often been incinerated with other combustible municipal wastes for possible recovery of heat or other forms of energy, however, incineration is not cost-effective, and can cause air pollution. Due to its organics- and nutrient-rich nature, food waste could be viewed as a useful resource for production of high-value platform chemicals through fermentation. This book examines the bioconversion of food wastes to energy and the recent developments in ethanol, hydrogen, methane, and biodiesel production from food wastes.
Book Synopsis 23 European Symposium on Computer Aided Process Engineering by : H. Hernandez-Escoto
Download or read book 23 European Symposium on Computer Aided Process Engineering written by H. Hernandez-Escoto and published by Elsevier Inc. Chapters. This book was released on 2013-06-10 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study presents the development and implementation of regulatory control structures in the operation of a Simultaneous Saccharification and Co-Fermentation (SSCF) using Proportional-Integral (PI) controllers. To this end, two different case studies were analyzed: 1) assuming lower cellulose and xylan fractions in the feedstock used to feed the SSCF reactor, and 2) lower efficiency of the microorganism for glucose to ethanol conversion, lower cellulose and xylan fraction content in the feedstock and slightly higher activity of class 1 and 2 enzyme. The implementation of the regulatory control structures showed that it is feasible to regulate the process with a simple control system by managing those likely uncertainties during the operation of the SSCF unit.
Book Synopsis Bioethanol Fuel Production Processes. II by : Ozcan Konur
Download or read book Bioethanol Fuel Production Processes. II written by Ozcan Konur and published by CRC Press. This book was released on 2023-12-22 with total page 719 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview of the research on production processes for bioethanol fuels in general, hydrolysis of the pretreated biomass for bioethanol production, microbial fermentation of hydrolysates and substrates with yeasts for bioethanol production, and separation and distillation of bioethanol fuels from the fermentation broth, complementing the research on biomass pretreatments presented in the first volume. It presents an overview of the research on biomass hydrolysis in general, wood hydrolysis, straw hydrolysis, and cellulose hydrolysis for bioethanol fuel production in the first section for biomass hydrolysis. It provides an overview of the research on microbial hydrolysate fermentation for bioethanol production in general, alternative fermentation processes for bioethanol fuel production such as simultaneous saccharification and fermentation (SSF) and consolidated biomass processing (CBP) compared with the separate hydrolysis and fermentation (SHF) process, metabolic engineering of microorganisms and substrates for bioethanol fuel production, and utilization of Saccharomyces cerevisiae for microbial fermentation of hydrolysates for bioethanol fuel production in the second section for hydrolysate fermentation. It provides an overview of the research on the bioethanol fuel separation from the fermentation broth in the last section. This book is a valuable resource for the stakeholders primarily in the research fields of energy and fuels, chemical engineering, environmental science and engineering, biotechnology, microbiology, chemistry, physics, mechanical engineering, agricultural sciences, food science and engineering, materials science, biochemistry, genetics, molecular biology, plant sciences, water resources, economics, business, management, transportations science and technology, ecology, public, environmental and occupational health, social sciences, toxicology, multidisciplinary sciences, and humanities among others.
Book Synopsis Special Topics in Renewable Energy Systems by : Ebubekir Yüksel
Download or read book Special Topics in Renewable Energy Systems written by Ebubekir Yüksel and published by BoD – Books on Demand. This book was released on 2018-10-03 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Renewable energy is the answer for future energy demand. Renewable energy is the energy that occurs in a natural manner and utilizes unlimited resources. It is the solution for reducing the dependence on fossil fuels and diminishing greenhouse gas emission. It is the key for cleaner, greener, and sustainable energy. In today's world, increased energy needs and environmental and health concerns associated with traditional energy systems have made way for rapid progress in producing energy from renewable resources. However, large-scale integration of current technologies and newer approaches are still required for more efficient and cost-effective systems. This small book is a collection of single research chapters dealing with biofuel generation and some recent methods for grid integration and storage problems. The editors would like to record their sincere thanks to the authors for their contributions.
Book Synopsis Handbook of Cellulosic Ethanol by : Ananda S. Amarasekara
Download or read book Handbook of Cellulosic Ethanol written by Ananda S. Amarasekara and published by John Wiley & Sons. This book was released on 2013-12-17 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive coverage on the growing science and technologyof producing ethanol from the world's abundant cellulosicbiomass The inevitable decline in petroleum reserves and its impact ongasoline prices, combined with climate change concerns, havecontributed to current interest in renewable fuels. Bioethanol isthe most successful renewable transport fuel—with corn andsugarcane ethanol currently in wide use as blend-in fuels in theUnited States, Brazil, and a few other countries. However, thereare a number of major drawbacks in these first-generation biofuels,such as their effect on food prices, net energy balance, and poorgreenhouse gas mitigation. Alternatively, cellulosic ethanol can beproduced from abundant lignocellulosic biomass forms such asagricultural or municipal wastes, forest residues, fast growingtrees, or grasses grown in marginal lands, and should be produciblein substantial amounts to meet growing global energy demand. The Handbook of Cellulosic Ethanol covers all aspects ofthis new and vital alternative fuel source, providing readers withthe background, scientific theory, and recent research progress inproducing cellulosic ethanol via different biochemical routes, aswell as future directions. The seventeen chapters includeinformation on: Advantages of cellulosic ethanol over first-generation ethanolas a transportation fuel Various biomass feedstocks that can be used to make cellulosicethanol Details of the aqueous phase or cellulolysis route,pretreatment, enzyme or acid saccharification, fermentation,simultaneous saccharification fermentation, consolidatedbioprocessing, genetically modified microorganisms, and yeasts Details of the syngas fermentation or thermochemical route,gasifiers, syngas cleaning, microorganisms for syngas fermentation,and chemical catalysts for syngas-to-ethanol conversion Distillation and dehydration to fuel-grade ethanol Techno-economical aspects and the future of cellulosicethanol Readership Chemical engineers, chemists, and technicians working onrenewable energy and fuels in industry, research institutions, anduniversities. The Handbook can also be used by studentsinterested in biofuels and renewable energy issues.
Book Synopsis Bio-Ethanol Production from Fruit and Vegetable Waste by Using Saccharomyces Cerevisiae by : Mohammad Moneruzzaman Khandaker
Download or read book Bio-Ethanol Production from Fruit and Vegetable Waste by Using Saccharomyces Cerevisiae written by Mohammad Moneruzzaman Khandaker and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Waste from the food is a challenge to the environment all over the globe, hence there is need to be recycled. Vegetables and fruits biomass is a resource of renewable energy with significant fuel source potential for the production of electricity and steam, fuel for consumption and laboratory solvents. Bioethanol derived from biomass contributed 10,Äì14% of the total world energy supply and solved the world crisis such as global warming and depletion of fossil fuel. Presently, bioethanol is a global issue on the efforts to reduced global pollution, contributed significantly by the petroleum or diesel combustion or combination of both. Vegetables and fruits waste significantly contains high sugar which can be utilized and serve as a raw material in the production of renewable energy using Saccharomyces cerevisiae. Though 80% of the current bioethanol are generated from edible materials such as starch and sugar. Biomass from lignocellulosic gathered more attention recently. The objective of this review is to account for the procedures involved in the production of bioethanol from biomass of fruits and vegetable waste through a fermentation process using Saccharomyces cerevisiae. In this chapter, we discussed the biomass preparation and fermentation techniques for bioethanol and reviewed the results of different fruits and vegetable waste. We found pineapple and orange fruit biomass contain a higher amount of bioethanol and easier to extract than the other fruit and vegetable wastes. Recent review coined out that dry biomass of fruit and vegetable is a promising feedstock in the utilization of bioethanol production.
Book Synopsis Second-Generation Bioethanol Production Through a Simultaneous Saccharification-Fermentation Process Using Kluyveromyces Marxianus Thermotolerant Yeast by : Jorge A. Mejía-Barajas
Download or read book Second-Generation Bioethanol Production Through a Simultaneous Saccharification-Fermentation Process Using Kluyveromyces Marxianus Thermotolerant Yeast written by Jorge A. Mejía-Barajas and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to the present renewable fuels demand increase, reduction of second-generation bioethanol production cost is pursued, since it is considered the most promising biofuel, but not yet economically viable. A proposed solution is its production through a simultaneous saccharification and fermentation process (SSF); however, it is necessary to apply temperatures above 40°C, which reduce the viability of traditional ethanologenic yeasts. As consequence, the use of thermotolerant ethanologenic yeast has been suggested, among which the yeast Kluyveromyces marxianus stands out. This chapter addresses the production of second-generation bioethanol through the SSF process, emphasizing the potential of K. marxianus to transform lignocellulosic biomass as agave bagasse. As result, it is proposed to direct the second-generation bioethanol production to the SSF process employing thermotolerant yeasts, to increase process productivity, and addressing the economic barriers.
Book Synopsis Intensification of Bioethanol Production by Simultaneous Saccharification and Fermentation in an Oscillatory Baffled Reactor by : Joseph Ikwebe
Download or read book Intensification of Bioethanol Production by Simultaneous Saccharification and Fermentation in an Oscillatory Baffled Reactor written by Joseph Ikwebe and published by . This book was released on 2013 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Novel Simultaneous-Saccharification-Fermentation Strategy for Efficient Co-fermentation of C5 and C6 Sugars Using Native, Non-GMO Yeasts by :
Download or read book A Novel Simultaneous-Saccharification-Fermentation Strategy for Efficient Co-fermentation of C5 and C6 Sugars Using Native, Non-GMO Yeasts written by and published by . This book was released on 2013 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Economic bioethanol production is critically dependent upon the ability to convert both the hexose (C6) and pentose (C5) sugars resulting from cellulose and hemicellulose. C5 sugars are not readily fermentable by native Saccharomyces cerevisiae. Genetically Modified Organisms (GMOs) are designed to ferment xylose, but their stability, ethanol yield, environmental impact, and survival under conditions of industrial fermentation are unproven. In this project, we developed a novel approach for efficient fermentation of both C5 and C6 sugars using native S. Cerevisiae by exploiting its ability to produce ethanol from xylulose - the keto-isomer of xylose. While the isomerization of xylose to xylulose can be accomplished via commercially (and cheaply) available Xylose Isomerase (XI) (Sweetzyme™), this conversion has an extremely unfavorable equilibrium (xylose:xylose is about 5:1). To address this, we developed two alternate strategies. In the first, the two enzymes XI and urease are coimmobilized on solid support particles to enable complete isomerization of xylose to xylulose under pH conditions suitable for fermentation, in a simultaneous-isomerization-fermentation (SIF) mode. The ability of our technology to conduct isomerization of xylose under pH conditions suitable for both saccharification and fermentation opens the possibility of SSF with native yeasts for the first time. Herein, we performed specific research tasks for implementation of our technology in several modes of operation, including simultaneous-isomerization-and-fermentation (SIF), simultaneous-saccharification-and-isomerization (SSI) followed by fermentation, and SSF mode with the biomass feedstock poplar. The projected economics of our process are very favorable in comparison to the costs associated with engineering, licensing and propagating GMOs. This novel fermentation technology is readily accessible to rural farming economies for implementation in cellulosic ethanol production facilities.
Book Synopsis Current Developments in Biotechnology and Bioengineering by : Jonathan W-C Wong
Download or read book Current Developments in Biotechnology and Bioengineering written by Jonathan W-C Wong and published by Elsevier. This book was released on 2016-09-19 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current Developments in Biotechnology and Bioengineering: Solid Waste Management provides extensive coverage of new developments, state-of-the-art technologies, and potential future trends, reviewing the latest innovative developments in environmental biotechnology and bioengineering as they pertain to solid wastes, also revealing current research priority areas in solid waste treatment and management. The fate of solid wastes can be divided into three major areas, recycling, energy recovery, and safe disposal. From this foundation, the book covers such key areas as biotechnological production of value added products from solid waste, bioenergy production from various organic solid wastes, and biotechnological solutions for safe, environmentally-friendly treatment and disposal. The state of the art situation, potential advantages, and limitations are discussed, along with proposed strategies on how to overcome limitations. - Reviews available bioprocesses for the production of bioproducts from solid waste - Outlines processes for the production of energy from solid waste using biochemical conversion processes - Lists various environmentally friendly treatments of solid waste and its safe disposal
Book Synopsis Bioethanol Production from Lignocellulosic Feedstock Using Aqueous Ammonia Pretreatment and Simultaneous Saccharification and Fermentation (SSF) by : Xuan Li
Download or read book Bioethanol Production from Lignocellulosic Feedstock Using Aqueous Ammonia Pretreatment and Simultaneous Saccharification and Fermentation (SSF) written by Xuan Li and published by . This book was released on 2010 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
