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Fuel Ethanol Production from Sugarcane最新文献

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Enhanced Ethanol Production of Saccharomyces cerevisiae Induced by Cold Plasma at Atmospheric Air Pressure 低温等离子体诱导酿酒酵母在常压下提高乙醇产量的研究
Fuel Ethanol Production from Sugarcane Pub Date : 2019-01-23 DOI: 10.5772/INTECHOPEN.78019
X. Dong
{"title":"Enhanced Ethanol Production of Saccharomyces cerevisiae Induced by Cold Plasma at Atmospheric Air Pressure","authors":"X. Dong","doi":"10.5772/INTECHOPEN.78019","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.78019","url":null,"abstract":"In this study, cold plasma at atmospheric pressure, as a novel approach of bioprocess intensification, was used to induce yeast for the improvement of ethanol production. Response surface methodology (RSM) was used to optimize the discharge-associated parameters of cold plasma for the purpose of maximizing the ethanol yield achieved by cold plasma-treated S. cerevisiae. The resulting yield of ethanol reached to 0.48 g g−1 under optimized parameters of plasma exposure time of 1 min, power voltage of 26 V, and an exposed sample volume of 9 mL, which represented an increase of 33% over control. Compared with non-exposed cells, cells exposed with plasma for 1 min presented a notable increment in cytoplasmic free Ca2+, when these exposed cells showed the significant increase in membrane potential. At the same time, ATP level decreased by about 40%, resulting in about 60% reduction in NADH. Taken together, these data suggested that the mechanism that air cold plasma raised plasma membrane potential, which led to increases in cytosolic Ca2+ concentration. Furthermore, the cofactor metabolism, such as ATP and NADH, was subjected to regulation that was mediated by Ca2+, ultimately improving yeast productivity. This may have a underlying and broad utilization in enhancing bioconversion capability of microbe in the next few years.","PeriodicalId":12484,"journal":{"name":"Fuel Ethanol Production from Sugarcane","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77403275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Sugarcane Bagasse Pretreatment Methods for Ethanol Production 蔗渣制备乙醇的预处理方法
Fuel Ethanol Production from Sugarcane Pub Date : 2018-11-05 DOI: 10.5772/INTECHOPEN.81656
S. Sabiha-Hanim, Nurul Asyikin Abd Halim
{"title":"Sugarcane Bagasse Pretreatment Methods for Ethanol Production","authors":"S. Sabiha-Hanim, Nurul Asyikin Abd Halim","doi":"10.5772/INTECHOPEN.81656","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.81656","url":null,"abstract":"Lignocellulosic biomass such as sugarcane bagasse (SCB) is a renewable and abundant source for ethanol production. Sugarcane bagasse is composed of cellulose, hemicellulose, lignin, extractives, and several inorganic materials. Pretreatment methods of SCB are necessary for the successful conversion of SCB to ethanol. Each pretreatment process has a specific effect on the cellulose, hemicellulose, and lignin fraction. The conversion of SCB to ethanol typically consists of four main steps: pretreatment, enzymatic hydrolysis, fermentation, and distillation. Hence, different pretreatment methods should be chosen according to the process design for the following hydrolysis, fermentation, and distillation steps. There are many types of pretreatments such as physical, chemical, physico-chemical, and biological pretreatments. This chapter reviews the chemical and physico-chemical pretreatment methods of SCB which are often used by many research- ers for ethanol production. Different chemical and physico-chemical pretreatment meth ods of SCB are introduced and discussed based on relevance to the sugar yield, lignin removal, and cellulose content after pretreatment.","PeriodicalId":12484,"journal":{"name":"Fuel Ethanol Production from Sugarcane","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77811130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 19
High Hydrostatic Pressure Process to Improve Ethanol Production 高静液压力工艺提高乙醇产量
Fuel Ethanol Production from Sugarcane Pub Date : 2018-11-05 DOI: 10.5772/INTECHOPEN.78712
Ane Catarine Tosi-Costa, Cárita Turbay-Vasconcelos, L. Adami, L. Favarato, Maria Bolivar-Telleria, Tarcio Carneiro, AlexandreSantos, Alberto R. Fernandes, Patricia M. B. Fernandes
{"title":"High Hydrostatic Pressure Process to Improve Ethanol Production","authors":"Ane Catarine Tosi-Costa, Cárita Turbay-Vasconcelos, L. Adami, L. Favarato, Maria Bolivar-Telleria, Tarcio Carneiro, AlexandreSantos, Alberto R. Fernandes, Patricia M. B. Fernandes","doi":"10.5772/INTECHOPEN.78712","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.78712","url":null,"abstract":"The use of high hydrostatic pressure (HHP) is an interesting approach to optimize the production of both firstand second-generation ethanol. It may be applied on Saccharomyces cerevisiae cells to enhance the fermentation pathway and on the lignocellulosic biomass to increase sugar release. HHP has a wide effect on many biological processes, such as growth, division and cellular viability. Actually, conformation, stability, polymerization and depolymerization of proteins are affected by HHP as well as lipid packaging. Moreover, transcriptional profile analysis indicates an activation of the general stress response. In yeast, HHP higher than 100 MPa leads to significant morphological and physiological alteration, and loss of cellular viability occurs over 200 MPa. A yield rate increase in ethanol production occurs at pressures of 10–50 MPa, but over 87 MPa alcoholic fermentation is interrupted.","PeriodicalId":12484,"journal":{"name":"Fuel Ethanol Production from Sugarcane","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85545040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Clash of Kingdoms: How Do Bacterial Contaminants Thrive in and Interact with Yeasts during Ethanol Production? 王国的冲突:在乙醇生产过程中，细菌污染物如何在酵母中茁壮成长并与酵母相互作用?
Fuel Ethanol Production from Sugarcane Pub Date : 2018-11-05 DOI: 10.5772/INTECHOPEN.78413
T. O. Basso, F. Lino
{"title":"Clash of Kingdoms: How Do Bacterial Contaminants Thrive in and Interact with Yeasts during Ethanol Production?","authors":"T. O. Basso, F. Lino","doi":"10.5772/INTECHOPEN.78413","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.78413","url":null,"abstract":"Brazilian fuel ethanol production from sugarcane is one of the largest industrial biotech- nological processes in the world. However, in view of the complex chemical nature of this feedstock, as well as the non-aseptic conditions of the process, various stress conditions are imposed to the fermenting yeast. In this chapter, we deemed to elaborate a brief overview of the ethanol production process, and to dissect the chemical nature of sugarcane-based worts, as well as their physiological effects on the fermenting yeasts. Finally, the interplay between yeast and lactic acid bacteria, the two main players in the ethanol fermentation process, is generally discussed.","PeriodicalId":12484,"journal":{"name":"Fuel Ethanol Production from Sugarcane","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73571579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Metabolic Engineering of the Model Photoautotrophic Cyanobacterium Synechocystis for Ethanol Production: Optimization Strategies and Challenges 乙醇生产模式光自养蓝藻的代谢工程:优化策略和挑战
Fuel Ethanol Production from Sugarcane Pub Date : 2018-11-05 DOI: 10.5772/INTECHOPEN.77271
J. Pembroke, Patricia Armshaw, M. P. Ryan
{"title":"Metabolic Engineering of the Model Photoautotrophic Cyanobacterium Synechocystis for Ethanol Production: Optimization Strategies and Challenges","authors":"J. Pembroke, Patricia Armshaw, M. P. Ryan","doi":"10.5772/INTECHOPEN.77271","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.77271","url":null,"abstract":"Photoautotrophic ethanol production using model cyanobacteria is an attractive technol - ogy that offers potential for sustainable ethanol production as a biofuel. Model strains of Synechocystis PCC6803 have been metabolically engineered to convert central meta bolic intermediates such as pyruvate to acetaldehyde via cloned heterologous pyruvate decarboxylase and from acetaldehyde to ethanol via cloned homologous or heterologous alcohol dehydrogenase. While the technology is now proven, strategies are required to increase the ethanol levels through metabolic and genetic engineering and in addition, production and process strategies are required to make the process sustainable. Here we discuss both genetic and molecular strategies in combination with do wnstream strate gies that are being applied while also discussing challenges to future application.","PeriodicalId":12484,"journal":{"name":"Fuel Ethanol Production from Sugarcane","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81434157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Potential of Weed Biomass for Bioethanol Production 杂草生物质用于生物乙醇生产的潜力
Fuel Ethanol Production from Sugarcane Pub Date : 2018-11-05 DOI: 10.5772/INTECHOPEN.77507
S. Premjet
{"title":"Potential of Weed Biomass for Bioethanol Production","authors":"S. Premjet","doi":"10.5772/INTECHOPEN.77507","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.77507","url":null,"abstract":"Lignocellulosic biomass from weedy plants represents a potential alternative feedstock for economic production of bioethanol. Large numbers of weedy plant species are growing all over the world. Characteristics such as high dry matter yield, low water and nutrient requirements for growth, and cellulose contents make weedy plants very attractive as feedstock for bioethanol production. However, like other lignocellulosic feedstock, the complex structure presents resistance and recalcitrance to processes of conversion to bioethanol. Several weedy plants have been studied to determine their physical characteristics and suitability for bioethanol production. Different conversion techniques have been employed to increase monomer sugars and hence bioethanol yield. This chapter discusses processes and current research activities in bioconversion of weed biomass to bioethanol.","PeriodicalId":12484,"journal":{"name":"Fuel Ethanol Production from Sugarcane","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86457040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Emerging Physico-Chemical Methods for Biomass Pretreatment 生物质预处理的新兴物理化学方法
Fuel Ethanol Production from Sugarcane Pub Date : 2018-11-05 DOI: 10.5772/INTECHOPEN.79649
E. C. Bensah, M. Mensah
{"title":"Emerging Physico-Chemical Methods for Biomass Pretreatment","authors":"E. C. Bensah, M. Mensah","doi":"10.5772/INTECHOPEN.79649","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.79649","url":null,"abstract":"A major challenge to commercial production of cellulosic ethanol pertains to the costeffective breakdown of the complex and recalcitrant structure of lignocellulose into its components by pretreatment methods—physical, chemical, physico-chemical, biological and various combinations thereof. The type and conditions of a pretreatment impacts both upstream processes such as size reduction as well as downstream processes such as enzymatic hydrolysis and enzyme loadings, and as such the choice of a pretreatment method for a specific biomass (or mix of materials) is influenced by several factors such as carbohydrate preservation and digestibility, sugar and ethanol yields, energy consumption, equipment and solvent costs, lignin removal and quality, formation of sugar/lignin degradation products, waste production, and water usage, among others. This chapter reviews both well-known and emerging physico-chemical methods of biomass fractionation with regards to process description and applications, advantages and disadvantages, as well as recent innovations employed to improve sugar yields, environmental sustainability and process economics.","PeriodicalId":12484,"journal":{"name":"Fuel Ethanol Production from Sugarcane","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86489219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Potential of Thermotolerant Ethanologenic Yeasts Isolated from ASEAN Countries and Their Application in High- Temperature Fermentation 东盟国家耐热产酒酵母的潜力及其在高温发酵中的应用
Fuel Ethanol Production from Sugarcane Pub Date : 2018-11-05 DOI: 10.5772/INTECHOPEN.79144
Tomoyuki Kosaka, N. Lertwattanasakul, NadchanokRodrussamee, M. Nurcholis, N. Dung, Chansom Keo-oudone, M. Murata, P. Götz, ConstantinosTheodoropoulos, Suprayogi, J. M. Maligan, S. Limtong, M. Yamada
{"title":"Potential of Thermotolerant Ethanologenic Yeasts Isolated from ASEAN Countries and Their Application in High- Temperature Fermentation","authors":"Tomoyuki Kosaka, N. Lertwattanasakul, NadchanokRodrussamee, M. Nurcholis, N. Dung, Chansom Keo-oudone, M. Murata, P. Götz, ConstantinosTheodoropoulos, Suprayogi, J. M. Maligan, S. Limtong, M. Yamada","doi":"10.5772/INTECHOPEN.79144","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.79144","url":null,"abstract":"Thermotolerant ethanologenic yeasts receive attention as alternative bio-ethanol producers to traditionally used yeast, Saccharomyces cerevisiae. Their utilization is expected to provide several benefits for bio-ethanol production due to their characteristics and robustness. They have been isolated from a wide variety of environments in a number of ASEAN countries: Thailand, Vietnam, Laos, and Indonesia. One of these yeasts, Kluyveromyces marxianus has been investigated regarding characteristics. Some strains efficiently utilize xylose, which is a main component of the 2nd generation biomass. In addition, the genetic basis of K. marxianus has been revealed by genomic sequencing and is exploited for further improvement of the strains by thermal adaptation or gene engineering techniques. Moreover, the glucose repression of K. marxianus and its mechanisms has been investigated. Results suggest that K. marxianus is an alternative to S. cerevisiae in next-generation bio-ethanol production industry. Indeed, we have succeeded to apply K. marxianus for bio-ethanol production in a newly developed process, which combines high-temperature fermentation with simultaneous fermentation and distillation under low pressure. This chapter aims to provide valuable information on thermotolerant ethanologenic yeasts and their application, which may direct the economic bioproduction of ethanol and other useful materials in the future.","PeriodicalId":12484,"journal":{"name":"Fuel Ethanol Production from Sugarcane","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83117995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Progress in Second Generation Ethanol Production with Thermophilic Bacteria 嗜热细菌生产第二代乙醇的研究进展
Fuel Ethanol Production from Sugarcane Pub Date : 2018-11-05 DOI: 10.5772/INTECHOPEN.78020
S. Scully, Johann Orlygsson
{"title":"Progress in Second Generation Ethanol Production with Thermophilic Bacteria","authors":"S. Scully, Johann Orlygsson","doi":"10.5772/INTECHOPEN.78020","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.78020","url":null,"abstract":"Thermophilic bacteria have gained increased attention as prospective organisms for bioethanol production from lignocellulosic biomass due to their broad substrate spec tra including many of the hexoses pentoses, and disaccharides found in biomass and biomass hydrolysates, fast growth rates, and high tolerance for extreme cultivation con -ditions. Apart from optimizing the ethanol production by varying physiological param - eters, genetic engineering methods have been applied. This review focuses upon those thermophilic anaerobes recognized as being highly ethanologenic, their metabolism, and the importance of various culture parameters affecting ethanol yields, such as the partial pressure of hydrogen, pH, substrate inhibition, and ethanol tolerance. Also, recent devel - opments in evolutionary adaptation and genetic engineering of thermophilic anaerobes are addressed.","PeriodicalId":12484,"journal":{"name":"Fuel Ethanol Production from Sugarcane","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80397028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessment of Sugarcane-Based Ethanol Production 甘蔗乙醇生产的评估
Fuel Ethanol Production from Sugarcane Pub Date : 2018-11-05 DOI: 10.5772/INTECHOPEN.78301
R. E. N. Castro, Rita M. B. Alves, C. Nascimento, R. Giudici
{"title":"Assessment of Sugarcane-Based Ethanol Production","authors":"R. E. N. Castro, Rita M. B. Alves, C. Nascimento, R. Giudici","doi":"10.5772/INTECHOPEN.78301","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.78301","url":null,"abstract":"This chapter aims to explain how bio-ethanol has been drawn to become a successful alternative to partially replace petroleum as a source of liquid fuels in Brazil. A brief historical analysis about the production of bio-ethanol from sugarcane is presented. The motivation to start the production of the ethanol as biofuel in the 1970s and how the governmental policies have contributed to the ups and downs, successes, and failures of the sugarcane industry is shown. Then, the efficiency of the sector is addressed; firstly, the increasing efficiency of the agricultural sector is discussed, showing how the productivity per hectare has increased in the last decades and which improvements are further expected in a near future. Finally, the industrial process is discussed: the current efficiency in processing sugarcane to produce ethanol and the emerging technologies, not only to process sugarcane juice, but also to harness bagasse, vinasse, and sugarcane straw.","PeriodicalId":12484,"journal":{"name":"Fuel Ethanol Production from Sugarcane","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81526146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
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