• Moreover, conversion of sugarcane biomass into fermentable sugars for second-generation ethanol production is a promising alternative to meet future demands of biofuel production in the country. (scielo.br)
  • Plant biomass is considered as an abundant renewable resource that can be transformed into fermentable sugars for biofuel production. (biomedcentral.com)
  • It gives potential opportunities for improving the efficiency of converting native lignocellulosic biomass to fermentable sugars. (biomedcentral.com)
  • Conversion of lignocellulosic biomass to fermentable sugars represents a major challenge in global efforts to utilize renewable resources in place of fossil fuels to meet the rising energy demands [ 2 ]. (biomedcentral.com)
  • Enzymatic hydrolysis is the most common process to degrade the cellulose and hemicellulose into fermentable sugars such as glucose and xylose. (biomedcentral.com)
  • These pre-treatments are designed to allow the carbohydrate portion of the biomass to be broken down into simple sugars, for example by en-zymatic hydrolysis using exogenously added cellulases to release fermentable sugars [ 12 ]. (banksolar.ru)
  • Increasing environmental and policy concerns and measures have generated increasing interest in the use of biomass resources as renewable feedstock for electricity generation, fuel production, chemical processing, and hydrogen production [ 9 ]. (hindawi.com)
  • Production of biofuels from the renewable lignocellulosic biomass is gradually considered as a promising way to replacement of fossil fuels. (biomedcentral.com)
  • Biomass is a renewable, unevenly geographically distributed resource that can be consid-ered sustainable and carbon-neutral if properly managed. (banksolar.ru)
  • This work contributes to predicting and modeling environmental carbon cycles, the design of plant-based biomass deconstruction strategies, and production of biofuels and value-added chemicals. (ucla.edu)
  • Novel processing strategies for hydrolysis and fermentation of lignocellulosic biomass in a single reactor offer large potential cost savings for production of biocommodities and biofuels. (researchgate.net)
  • These arguments have stimulated the search for so-called second generation biofuels, which utilize non-food lignocellulose biomass such as wood, dedicated energy crops, agricultural residues and municipal solid wastes as feedstocks. (banksolar.ru)
  • Microbial consortia represent promising candidates for aiding in the development of plant biomass conversion strategies for biofuel production. (biomedcentral.com)
  • In nature, plant biomass degradation is mediated mostly by lignocellulolytic microorganisms, which have evolved distinct enzymatic systems for complex polysaccharide degradation. (biomedcentral.com)
  • Our current approaches of developing more efficient enzyme cocktails and improving biomass conversion rely largely on expanding our knowledge on the microbial degradation and utilization of plant biomass. (biomedcentral.com)
  • A counter-measure against the elevation of carbon dioxide in the atmosphere is to strengthen the path of carbon dioxide recycling through photosynthesis and then efficiently utilize the plant biomass formed as a result. (banksolar.ru)
  • These results demonstrate that the corn stover-adapted microbial consortium EMSD5 harbors a variety of lignocellulolytic anaerobic bacteria and degradative enzymes, especially those implicated in hemicellulose decomposition. (biomedcentral.com)
  • However, its bioconversion has been limited by its hydrolysis because the main components of the lignocellulosic biomass (cellulose, hemicellulose and lignin) are tightly held together and form lignin-carbohydrate complexes (LCC). (biomedcentral.com)
  • Biomass consists of cellulose, hemicellulose and lignin, and the latter of which is extremely resistant to degradation. (banksolar.ru)
  • Better control of fermentation conditions can reduce the stress conditions for yeast cells and contamination by bacteria and wild yeasts. (scielo.br)
  • Alternatively, processes using cellulolytic microorganisms (such as C. cellulolyticum, C. thermocellum, and C. phytofermentans) to carry out both the hydrolysis of lignocelluloses and sugar fermentation in a single step, termed 'Consolidated Bioprocessing Process (CBP)' [ 12 ] have been proposed, how-ever the development of these is still at an early stage, and again low conversion rates seem to be a major limitation that needs to be overcome. (banksolar.ru)
  • This quality could allow this species to be utilized as an effective biological pretreatment for lignocellulosic biomass. (wikipedia.org)
  • If the lignocellulosic biomass can efficiently be saccharified by enzymolysis without pretreatment, the bioconversion process would be simplified. (biomedcentral.com)
  • These results show that hydrolysis by the extra-enzyme of C. owensensis made almost the same contribution as steam-exploded pretreatment on degradation of native lignocellulosic biomass. (biomedcentral.com)
  • The pretreatment and detoxification steps may be removed from the bioconversion process of the lignocellulosic biomass by using the enzymes from C. owensensis . (biomedcentral.com)
  • In this multi-stage process, fermentative bacteria hydrolyze the polymeric substrates present in all anaerobic habitats and then ferment the hydrolysis products to acetate and longer chain fatty acids, alcohols, aromatic compounds, CO 2 , formate, and H 2 . (ucla.edu)
  • A new process for saccharification of lignocellulosic biomass by sequential hydrolysis is demonstrated in the present research, namely hyperthermal enzymolysis (70-80 °C) by enzymes of C. owensensis followed with mesothermal enzymolysis (50-55 °C) by commercial cellulase. (biomedcentral.com)
  • One approach to un-locking the potential in this abundant feedstock is to separate the lignin from the carbohydrate fraction of the biomass via extensive pre-treatment of the lignocellulose involving, for exam-ple, steam-explosion and/or acid hydrolysis. (banksolar.ru)
  • Our findings provide insights into the mechanism by which consortium members orchestrate their array of enzymes to degrade complex lignocellulosic biomass. (biomedcentral.com)
  • Conclusions The comparative whole-genome along with transcriptome analysis indicated that G. stearothermophilus B5 owned the ability of lignocellulose degradation and could be considered as a potential inoculant in composting efficiency, thus are also valuable for the lignocellulosic bioenergy industry. (researchsquare.com)
  • During the anaerobic conditions of ensilage, these organisms quickly dominate the microbial population, and, within 48 hours, they begin to produce lactic and acetic acids via the Embden-Meyerhof Pathway, further diminishing their competition. (wikipedia.org)
  • Using coordinated molecular and bioinformatic approaches we examine metabolism of model microbial communities to better understand the processes that drive anaerobic carbon recycling in nature. (ucla.edu)
  • The ubiquity of syntrophic metabolism in many anoxic environments emphasizes that metabolic cooperation among microbial species is essential for the anaerobic conversion of organic matter in nature. (ucla.edu)
  • The lignin-carbohydrate complexes create a barrier for microbial conversion [ 1 ]. (biomedcentral.com)
  • In addition, analysis of the coordinate expression patterns indicated that transport proteins and hypothetical proteins may play a role in bacteria processing lignocellulose. (biomedcentral.com)
  • In natural ecosystems, biodegradation of lignocellulosic biomass is usually accomplished by intricate consortia of diverse microorganisms rather than individuals. (biomedcentral.com)
  • Fourth, unlike traditional chemical catalysts which require a set feed gas composition to yield desired product ratios or suite, microbial processes have freedom to operate for the production ofthe same suite of products across a wider range of CO:H2 ratios in the feed gas [ 16 ]. (banksolar.ru)
  • The genome sequencing of the lactic acid bacterium L. plantarum WCFS1 shows more molecular details. (wikipedia.org)
  • L. plantarum has one of the largest genomes known among the lactic acid bacteria and is a very flexible and versatile species. (wikipedia.org)
  • We present here a comprehensive study on the community structure and enzyme systems of a lignocellulolytic microbial consortium EMSD5 during growth on corn stover, using metagenome sequencing in combination with quantitative metaproteomics. (biomedcentral.com)
  • As shown in Fig. 2,2/3 of the biomass in the oil palm indus-try is agricultural waste. (banksolar.ru)
  • Here we show that the ability to digest xanthan gum is common in human gut microbiomes from industrialized countries and appears contingent on a single uncultured bacterium in the family Ruminococcaceae. (nature.com)
  • Our work demonstrates the existence of a potential xanthan gum food chain involving at least two members of different phyla of gut bacteria and provides an initial framework for understanding how widespread consumption of a recently introduced food additive influences human microbiomes. (nature.com)
  • The peroxide, it is presumed, acts as a weapon to exclude competing bacteria from the food source. (wikipedia.org)
  • However, a combination of factors involving oil price drops, reduction of subsidies to producers and rise of sugar prices contributed to fuel shortage that led to a major downturn in the demand for ethanol-run cars. (scielo.br)
  • Hence the total en-ergy fixed by biomass is estimated to be 13.5×107 kcal/ha year, this being equiva-lent to 15 tons of fuel. (banksolar.ru)
  • This process has the advantages of no sugar loss, few inhibitors generation and consolidated with sterilization. (biomedcentral.com)