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Author : R. Sridar
Publisher :
ISBN 13 :
Total Pages : 81 pages
Book Rating : 4.:/5 (698 download)
Download or read book Ethanol Production by Immobilized Cells of Saccharomyces Cerevisiae from Sugarcane Juice written by R. Sridar and published by . This book was released on 1984 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 234 pages
Book Rating : 4.:/5 (921 download)
Download or read book Ethanol Productivity from Cane Molasses by Mixed Cultures System of Saccharomyces Cerevisiae M30 and Kluyveromyces Marxianus DMKU 3-1042 written by and published by . This book was released on 2009 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: A renewable energy, ethanol gains more interest because of its benefits such as clean energy and production from biomass fermentation. Industrial fermentation is typically performed using yeast cells. Most of these organisms grow optimally at a temperature range of 25-35°C. On the other hand, ethanol fermentation at high temperature offers many advantages since it can work in a wide temperature range, reduce cooling cost and reduce risk of contamination. The later process, therefore, is suitable for the use in tropical countries, where the average temperature is high throughout the year. Hence, in the present work, ethanol fermentations using thermotolerant yeast, Kluyveromyces marxianus DMKU 3-1042 and Saccharomyces cerevisiae M30 in monoculture and mixed cultures were studied. The cultures in forms of suspended cells and immobilized cells by entrapment within the alginate-loofa matrix (ALM) and adsorption on the fibrous of thin shell silk cocoon were used for the investigation with sugar cane juice/cane molasses as a carbon source at the initial sugar concentration of 220 g/l. The ethanol fermentation by the mixed culture system using thin shell silk cocoon as a carrier was found to be the most effective system. Under batch fermentation in 500 ml Erlenmeyer shaking-flasks, the immobilized mixed culture was found capable of highly efficient ethanol production from both sugar cane juice and cane molasses with the final ethanol concentration of 71.84-80.65 g/l at operating temperature of 37-40°C. Under uncontrolled temperature condition in 1-L continuous packed-bed reactor using the mixed culture immobilized on thin shell silk cocoon fibers, the optimum of productivity (14.18 ±0.06 g/l h) was obtained at 0.21 h-1 of dilution rate with ethanol concentration of 70.88 ±0.31 g/l, whereas, the maximum of ethanol concentration (86.33 ± 1.34 g/l) was obtained at 0.10 h-1 of dilution rate. The immobilized mixed culture was able to remain viable and functioned normally as well as the carrier had good mechanical strength, stability and high potential for the application for long term use. Based on the results of this work, a large scale study is recommended in order to develop an industrial production process.
Author : Noordiana Ariffin
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (953 download)
Download or read book Production of Ethanol by Immobilized Saccharomyces Cerevisiae written by Noordiana Ariffin and published by . This book was released on 2014 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research was conducted on the fermentation of ethanol by Saccharomyces cerevisiae using immobilization technique. S. cerevisiae which is also known as Baker's yeast is a single-celled eukaryote that is frequently used in scientific research. It is an attractive model organism due to the fact that its genome has been sequenced, its genetics are easily manipulated and very easy to maintain in the laboratory. Besides, immobilization has already been approved as useful method in maintaining high cell concentration within the reactor, increases the cell's ability to tolerate high ethanol concentration in the medium, allowing higher conversion yield and increased volumetric productivities. Therefore, the purpose of this study is to immobilize the yeast using various kind of supports (e.g: muslin cloth, membrane and sugarcane stalk) in batch processes to determine the best support for ethanol production. In this method, immobilized fermentation was carried out through shake flask seeding technique while the duration of fermentation process was fixed at 10 hours with sampling made at every 2 hours intervals. The germination of the stock and seed culture preparations were conducted followed by the immobilization technique in order to produce ethanol. Samples taken were analyzed for ethanol and glucose concentration, colony forming unit (CFU), biomass concentration, optical density and viewing of S. cerevisiae attachment on immobilized supports by Scanning Electron Microscope (SEM). From the result obtained, it showed that immobilized cloth was capable to increase cell optical density up to 1.602 after 10 hours of fermentation. Moreover, analysis performed by using biomass has revealed that immobilized cloth at 10 hours of fermentation gave the highest biomass concentration which is 39.64 gL-1 and colonies of cells forming at 2.57 x 108/mL of viable cells compared to other materials. Besides, its ethanol productivity was enhanced to 0.42 gL-1h-1, being over 9.6% higher than that observed in the batch culture (0.38 gL-1h-1). The consumption of glucose was improved by 6.9% (compared to batch operation), where nearly 67% of glucose conversion at 10 hours period of immobilized fermentation through muslin cloth. The increment might be associated with the altered metabolical functions in the immobilized cells. This alteration is attributed to the reduction of the diffusion path of the growth nutrient that enhanced the availability and promoted the growth of yeast, thus improving the catalytic conversion of glucose to ethanol. Therefore, the supported muslin cloth was proved to increase the number of cells and glucose inhibition is able to reduce with the utilization of immobilized S. cerevisiae, thus increasing ethanol production.
Author : Thalita Peixoto Basso
Publisher : BoD – Books on Demand
ISBN 13 : 1789849373
Total Pages : 232 pages
Book Rating : 4.7/5 (898 download)
Download or read book Fuel Ethanol Production from Sugarcane written by Thalita Peixoto Basso and published by BoD – Books on Demand. This book was released on 2019-01-23 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a broad understanding of bioethanol production from sugarcane, although a few other substrates, except corn, will also be mentioned. The 10 chapters are grouped in five sections. The Fuel Ethanol Production from Sugarcane in Brazil section consists of two chapters dealing with the first-generation ethanol Brazilian industrial process. The Strategies for Sugarcane Bagasse Pretreatment section deals with emerging physicochemical methods for biomass pretreatment, and the non-conventional biomass source for lignocellulosic ethanol production addresses the potential of weed biomass as alternative feedstock. In the Recent Approaches for Increasing Fermentation Efficiency of Lignocellulosic Ethanol section, potential and research progress using thermophile bacteria and yeasts is presented, taking advantage of microorganisms involved in consolidating or simultaneous hydrolysis and fermentation processes. Finally, the Recent Advances in Ethanol Fermentation section presents the use of cold plasma and hydrostatic pressure to increase ethanol production efficiency. Also in this section the use of metabolic-engineered autotrophic cyanobacteria to produce ethanol from carbon dioxide is mentioned.
Author : Antonio Morata
Publisher : BoD – Books on Demand
ISBN 13 : 9535135996
Total Pages : 302 pages
Book Rating : 4.5/5 (351 download)
Download or read book Yeast written by Antonio Morata and published by BoD – Books on Demand. This book was released on 2017-11-08 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Yeast - Industrial Applications is a book that covers applications and utilities of yeasts in food, chemical, energy, and environmental industries collected in 12 chapters. The use of yeasts in the production of metabolites, enzymatic applications, fermented foods, microorganism controls, bioethanol production, and bioremediation of contaminated environments is covered showing results, methodologies, and processes and describing the specific role of yeasts in them. The traditional yeast Saccharomyces cerevisiae is complemented in many applications with the use of less known non-Saccharomyces yeasts that now are being used extensively in industry. This book compiles the experience and know-how of researchers and professors from international universities and research centers.
Author : Sarabjot Kaur
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783659586835
Total Pages : 184 pages
Book Rating : 4.5/5 (868 download)
Download or read book Ethanol Production From Saccharomyces Cerevisiae written by Sarabjot Kaur and published by LAP Lambert Academic Publishing. This book was released on 2014-09-10 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ethanol is an important industrial solvent and a chemical feedstock being used for the synthesis of pharmaceuticals, detergents, adhesives, plastics, plasticizers and host for other chemicals. To reduce the cost of ethanol production, significant improvements in ethanol production technology are needed. The potential advantages of immobilized whole cell system have been recognized in the fermentation of a wide variety of carbohydrates. Immobilized cell technology has many advantages over conventional systems .This study is aimed at cell immobilization process, isolation, purification and immobilization of alcohol dehydrogenase(ADH) on different matrices from cells of S.Cerevisiae for enhancing ethanol production. The cells of Saccharomyces Cerevisiae were immobilized on different matrices viz polacrylamide, k-carrageenan, agar and calcium-alginate .Ethanol Production was improved by immobilized Alcohol Dehydrogenase and further enhanced when cell free extract was co-immobilized with isolated ADH
Author : Sandra Regina Ceccato-Antonini
Publisher : Springer Nature
ISBN 13 : 3031122925
Total Pages : 130 pages
Book Rating : 4.0/5 (311 download)
Download or read book Microbiology of Ethanol Fermentation in Sugarcane Biofuels written by Sandra Regina Ceccato-Antonini and published by Springer Nature. This book was released on 2022-10-27 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the microbiology of fermentation for the production of bioethanol from sugarcane. Coverage includes how selected yeasts improve ethanol yield and productivity concerning recent advances at genomic, transcriptomic, and proteomic levels, how microorganisms (bacteria and yeasts) interact with each other in fermentation vats, and the application of microbiological monitoring methods with safety and precision. Special attention is given to antimicrobial strategies used to decrease contamination. The book is aimed at professionals working in the bioethanol industry, as well as students and researchers studying biological and biotechnological aspects of applied matters such as industrial microbiology and industrial fermentations. The English translation of this book from its Portuguese original manuscript was done with the help of artificial intelligence (machine translation by the service provider DeepL.com). A subsequent human revision of the content was done by the author. Covers common microbiological monitoring techniques; Reviews selected yeasts used in the bioethanol industry; Examines the role of bacteria and native yeasts in ethanolic fermentation and methods to control their growth.
Author : Marcos S. Buckeridge
Publisher : Springer
ISBN 13 : 3319498266
Total Pages : 217 pages
Book Rating : 4.3/5 (194 download)
Download or read book Advances of Basic Science for Second Generation Bioethanol from Sugarcane written by Marcos S. Buckeridge and published by Springer. This book was released on 2017-03-10 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the basic science recently produced in Brazil for the improvement of sugarcane as a bioenergy crop and as a raw material for 2nd generation bioethanol production. It reports achievements that have been advancing the science of cell walls, enzymes, genetics, and sustainability related to sugarcane technologies and give continuity to the research reported in the “Routes to Cellulosic Ethanol”, from Springer. The Introduction (Chapter I) explains how the National Institute of Science and Technology of Bioethanol, founded in 2008 in Brazil, became part of the main international initiatives that started to search for forms to use biomass for bioethanol production in Brazil, US and Europe. Part I reports the advances in plant cell wall composition, structure and architecture, and physical characteristics of sugarcane biomass. These discoveries are opening the way to increased efficiency of pretreatments and hydrolysis, being therefore important information for 2nd generation processes as well as for biorefinery initiatives. Part II focuses on the discovery and characterization of hydrolases from microorganisms that could be used in industrial processes. Recent advances in the search for hydrolases using metagenomics is reported. A great number of genes and enzymes from microorganisms have been discovered, affording improvement of enzyme cocktails better adapted to sugarcane biomass. Part III reports two key issues in the process of 2G ethanol, pentose fermentation and sugarcane genetics. These are the discoveries of new yeast species capable of producing ethanol more efficiently from xylose and the advances made on the sugarcane genetics, a key issue to design varieties adapted to 2G ethanol production. Part IV approaches sustainability through two chapters, one discussing the sustainability of the sugarcane agricultural and environmental system and another discussing how national and mainly international policies of Brazil regarding 2G ethanol production affected the country’s strategies to establish itself as an international player in renewable energy area.
Author : Anita Sheoran
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (652 download)
Download or read book Optimization Studies for Ethanol Production Using Immobilized Saccharomyces Cerevisiae Cells written by Anita Sheoran and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Francis X. McConville
Publisher :
ISBN 13 :
Total Pages : 184 pages
Book Rating : 4.:/5 (152 download)
Download or read book Ethanol Production by Immobilized Saccharomyces Cerevisiae written by Francis X. McConville and published by . This book was released on 1986 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Usha Rani
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (652 download)
Download or read book Continuous Ethanol Production by Immobilized Whole Cells of Saccharomyces Cerevisiae CCSHAU I. written by Usha Rani and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fengwu Bai
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)
Download or read book Process Oscillations in Continuous Ethanol Fermentation with Saccharomyces Cerevisiae written by Fengwu Bai and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gerald Ernest Rowe
Publisher :
ISBN 13 :
Total Pages : 424 pages
Book Rating : 4.:/5 (16 download)
Download or read book Assessment of Immobilized Cell Systems for Ethanol Production Using Z. Mobilis and S. Cerevisiae written by Gerald Ernest Rowe and published by . This book was released on 1981 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : G. E. Rowe
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (597 download)
Download or read book Assessment of Immobilized-cell Systems for Ethanol Production Using Z Mobils and S Cerevisiae written by G. E. Rowe and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ghasem Najafpour
Publisher : Elsevier
ISBN 13 : 0444633774
Total Pages : 669 pages
Book Rating : 4.4/5 (446 download)
Download or read book Biochemical Engineering and Biotechnology written by Ghasem Najafpour and published by Elsevier. This book was released on 2015-02-24 with total page 669 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biochemical Engineering and Biotechnology, 2nd Edition, outlines the principles of biochemical processes and explains their use in the manufacturing of every day products. The author uses a diirect approach that should be very useful for students in following the concepts and practical applications. This book is unique in having many solved problems, case studies, examples and demonstrations of detailed experiments, with simple design equations and required calculations. - Covers major concepts of biochemical engineering and biotechnology, including applications in bioprocesses, fermentation technologies, enzymatic processes, and membrane separations, amongst others - Accessible to chemical engineering students who need to both learn, and apply, biological knowledge in engineering principals - Includes solved problems, examples, and demonstrations of detailed experiments with simple design equations and all required calculations - Offers many graphs that present actual experimental data, figures, and tables, along with explanations
Author : Siti Salwa Razali
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.:/5 (96 download)
Download or read book Ethanol Production from Peneapple Waste Using Free and Immobilized Saccharomyces Cerevisiae Yeasts written by Siti Salwa Razali and published by . This book was released on 2009 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David M. Mousdale
Publisher : CRC Press
ISBN 13 : 1420051253
Total Pages : 424 pages
Book Rating : 4.4/5 (2 download)
Download or read book Biofuels written by David M. Mousdale and published by CRC Press. This book was released on 2008-06-04 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evaluating a wealth of quantitative data, Biofuels: Biotechnology, Chemistry, and Sustainable Development discusses different types of biofuels, the science behind their production, the economics of their introduction to the marketplace, their environmental impacts, and their implications for world agriculture. It broadens the discussion on biofuel
