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1 Department of Biology, College of Science, King Khalid University, P.O. Box 3100, Abha 61417, Saudi Arabia. Abstract. The bioconversion of cellulosic wastes into high-value bio-products by saccharification and fermentation processes is an important step that can reduce the environmental pollution caused by agricultural wastes.
Get PriceEnzymatic saccharification and fermentation of cellulosic date palm wastes to glucose and lactic acid. Alrumman SA(1). Author information: (1)Department of Biology, College of Science, King Khalid University, P.O. Box 3100, Abha 61417, Saudi Arabia. Electronic address: [email protected]
Get Price2016-1-27 · The bioconversion of cellulosic wastes into high-value bio-products by saccharification and fermentation processes is an important step that can reduce the environmental pollution caused by agricultural wastes. In this study, enzymatic saccharification of treated and untreated date palm cellulosic wastes by the cellulases from Geobacillus ...
Get Price2016-1-1 · The saccharification was increased to 94.88% by removal of the hydrolysate after 24 h by using a two-step hydrolysis. Significant lactic acid production (27.8 mg/mL) was obtained by separate saccharification and fermentation after 72 h of incubation. The results indicate that production of fermentable sugar and lactic acid is feasible and may ...
Get PriceIntroduction. At present, the conversion of low-value agriculture wastes into valuable commodities, energy, chemicals and microbial protein by saccharification and fermentation processes is not economically feasible, largely due to the costs of cellulosic materials and cellulolytic enzymes, as well as technical problems associated with cellulose saccharification. 1–5 There is an increased ...
Get Price2019-12-1 · For Saudi Arabia, from 1.07 million tons of date fruits and 24 million date trees, there is a potential to produce 438 million litres of ethanol, which is the highest among all countries. DWs in Saudi Arabia are also more than those in Iran. Similarly, for all other countries, the estimated average production of ethanol is given in Fig. 7 ...
Get Price2021-6-18 · Bioethanol production from the saccharification and fermentation of the sesame seed residues The reducing sugar content was 0.26 g/L for the fermentation medium before the saccharification process. After the growth of the Bacillus cereus for 48 h under optimum fermentation conditions, the reducing sugar content was elevated to 8.8 fold (2.3 g/L ...
Get PriceA new process for conversion of sugarcane bagasse to ethanol was analyzed for production costs and energy consumption using experimental results. The process includes a sequential three-stage deacetylation, hot water, and disk-refining pretreatment and a commercial glucose-xylose fermenting S. cerevisiae strain. The simultaneous saccharification and co-fermentation (SScF) step used was ...
Get Price2021-1-1 · We have identified the saccharification and fermentation processes for optimal bioethanol production by these plants. Specifically, the optimal starch-to-sugar conversion required the enzyme α-amylase and amyloglucosidase in a ratio of 2:1 (v/v) and fermentation for 24 h at 50 °C.
Get Price2019-11-7 · Leaves of Conocarpus erectus are potential feedstock for bioethanol production due to their lower lignin and higher cellulosic content and are among one of the least explored biomass sources. The present study reported a low-temperature (90 °C) energy-efficient pretreatment method for the release of fermentable sugars from C. erectus leaves and its conversion into bioethanol by using ...
Get PriceIntroduction. At present, the conversion of low-value agriculture wastes into valuable commodities, energy, chemicals and microbial protein by saccharification and fermentation processes is not economically feasible, largely due to the costs of cellulosic materials and cellulolytic enzymes, as well as technical problems associated with cellulose saccharification. 1–5 There is an increased ...
Get PriceA new process for conversion of sugarcane bagasse to ethanol was analyzed for production costs and energy consumption using experimental results. The process includes a sequential three-stage deacetylation, hot water, and disk-refining pretreatment and a commercial glucose-xylose fermenting S. cerevisiae strain. The simultaneous saccharification and co-fermentation (SScF) step used was ...
Get PriceSimultaneous saccharification and fermentation (SSF) is an approach, where the saccharification of biomass is combined with simultaneous fermentation of the released sugars in a single reactor. Therefore, as soon as the sugars are formed from biomass, they are rapidly converted into ethanol thus minimising the accumulation of inhibitory sugars ...
Get Price2021-6-15 · Liquefaction, Saccharification, Fermentation, Condensation, Heat Recovery, Reboiler Processes ” alt=”Chemicals & Petrochemicals”/> Chemicals & Petrochemicals. Solvent Recovery, Cooling & Heating of Acids and Caustic Solutions, Heat Recovery from Flue Gases.
Get PriceThe present study aims to assess the impact of the type of yeast consortium used during bioethanol production from starchy biowastes and to determine the optimal fermentation conditions for enhanced bioethanol production. Three different yeast strains, Saccharomyces cerevisiae, Pichia barkeri, and Candida intermedia were used in mono- and co-cultures with pretreated waste-rice as substrate.
Get PriceContinuous and real-time measurements. The Gas Endeavour® allows for continuous and on-line monitoring of alcoholic fermentation processes by continuously following the emission of carbon dioxide in real-time. Fully integrated and automatic, the Gas Endeavou r ® significantly reduces labour and skill demands compared to competitive solutions.
Get PriceThese data demonstrate that Aspergillus species and possibly also other related fungi employ significantly different approaches to degrade plant biomass. This makes sense from an ecological perspective where mixed populations of fungi together degrade …
Get Priceinternational energy crisis resulted from an attack on Israel by Egypt, Saudi Arabia and other Arab countries. OPEC embargoed oil exports to the US and stated they would drop oil production by 5% per month. Oil prices in the US quadrupled from 4.50 to 22.50 per barrel and rationing was implemented. The embargo ended in March 1974, with
Get Price2016-5-2 · Bioethanol, a renewable energy source, is an alternative to petroleum or gasoline obtained from fossil fuel. About 35 % of oxygen present in the fuel ethanol helps in the complete combustion and thus, reduces harmful tailpipe emissions from the vehicles which pose health hazards [].Lignocellulosic biomass are the potent resources for the production of bioethanol and it can be blended with the ...
Get Price2019-4-4 · simultaneous saccharification and fermentation of lignocellulosic biomass ... Resources in Saudi Arabia Stefano Castruccio ACMS ... processes. However, it is difficult to develop microbial biocatalysts that can survive and thrive in the IL environment, as well as perform efficient biotransformation under these intense, high salt ...
Get PriceSimultaneous saccharification and fermentation (SSF) is an approach, where the saccharification of biomass is combined with simultaneous fermentation of the released sugars in a single reactor. Therefore, as soon as the sugars are formed from biomass, they are rapidly converted into ethanol thus minimising the accumulation of inhibitory sugars ...
Get PriceThe noncellulolytic actinomycete Rhodococcus opacus strain PD630 is the model oleaginous prokaryote with regard to the accumulation and biosynthesis of lipids, which serve as carbon and energy storage compounds and can account for as much as 87% of the dry mass of the cell in this strain. In order to establish cellulose degradation in R. opacus PD630, we engineered strains that episomally ...
Get Price2021-1-13 · 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.
Get Priceinternational energy crisis resulted from an attack on Israel by Egypt, Saudi Arabia and other Arab countries. OPEC embargoed oil exports to the US and stated they would drop oil production by 5% per month. Oil prices in the US quadrupled from 4.50 to 22.50 per barrel and rationing was implemented. The embargo ended in March 1974, with
Get Price2021-6-18 · Bioenergy Production from Bamboo: Potential Source from Malaysia’s Perspective. Kit Ling Chin, a Shamsudin Ibrahim, b Khalid Rehman Hakeem, c Paik San H’ng, a,b, * Seng Hua Lee, b and Mohd Azmi Mohd Lila d. Global energy sectors are facing the crucial challenge of sustainability and diversification of energy resources.
Get Price2019-10-17 · The global annual production of ethylene in 2017 was 150 million tons [].The United States, China, and Saudi Arabia are the leading producers, representing about 40% of the worldwide production [].The production of ethylene has been usually performed by the petrochemical industry from hydrocarbons as raw material (ethane, propane, or naphtha) using a catalytic thermal cracking with …
Get Price2017-9-12 · G. candidum AA9 LPMOs could be appropriate enzymes for consolidated bioprocessing (CBP), which combines enzyme production, saccharification, and fermentation in a single step . One of the strategies for engineering a CBP biocatalyst is to develop recombinant yeast strains displaying cellulases and hemicellulases on the cell surface [31, 32].
Get Price2013-5-14 · The bioethanol production from lignocellulosic materials is a socially and environmentally well-accepted option; however, its technical and economic feasibility needs to be established. In order to know if the bioethanol production from this feedstock has a potential for implementation, we developed a comparison of 16 process configurations based on four pretreatment methods and six conversion ...
Get PriceAbu-Bakr M Gomaa. King AbdulAziz University (KAU) Jeddah, Saudi Arabia, Biochemistry, Faculty Member. Download. CURRICULUM VITA (C.V) Name : Dr. Abu-Bakr Mahmoud Hassanein Gomaa Title : Professor Nationality : Egyptian Date of birth : July 8, 1954 Place of Birth : Cairo, Egypt Marital status : Married Languages : Arabic, English and to some ...
Get Price61321, Saudi Arabia. ... development of fermentation processes using cheap carbon sources is important for commercial scale production (Cazetta et al., 2007). ... saccharification activity was 15 IUmg –1, measured as the initial rate of reducing
Get PriceSaccharification and Fermentation by Co-culture Technique To initiate the saccharification process, the cellulose-degrading bacteria were grown in cellulose basal medium at the optimum fermentation conditions with mixing at 120 rpm for 72 hours. The culture …
Get PriceThe noncellulolytic actinomycete Rhodococcus opacus strain PD630 is the model oleaginous prokaryote with regard to the accumulation and biosynthesis of lipids, which serve as carbon and energy storage compounds and can account for as much as 87% of the dry mass of the cell in this strain. In order to establish cellulose degradation in R. opacus PD630, we engineered strains that episomally ...
Get PriceSome 400,000 liters per day of crude industrial alcohol from a refinery in Saudi Arabia are processed in the Bahrain unit. After entering the plant, the feed is purified in a rectification column where low-boiling substances such as diethylether and acetaldehyde are separated before being dehydrated by molecular sieve technology to achieve a ...
Get PriceThis plant for baby milk powder and protein drink concentrates was realised by Vogelbusch in 2002 with a process licensed from a German producer of infant formula. The enterprise is the first manufacturer of infant formula in the Middle East. The production capacity is 32 tons per day. The plant location,...
Get Price2021-3-23 · Physical pretreatment processes employ the mechanical comminution or irradiation processes to change only the physical characteristics of biomass. The physio-chemical process utilizes steam or steam and gases, like SO2 and CO2. The chemical processes employs acids (H2SO4, HCl, organic acids etc) or alkalis (NaOH, Na2CO3, Ca(OH)2, NH3 etc).
Get Price2013-5-14 · The bioethanol production from lignocellulosic materials is a socially and environmentally well-accepted option; however, its technical and economic feasibility needs to be established. In order to know if the bioethanol production from this feedstock has a potential for implementation, we developed a comparison of 16 process configurations based on four pretreatment methods and six conversion ...
Get PriceJean‐Luc Dubois is scientific director at Arkema. He is in charge of Corporate R&D linked with catalysis, processes, and renewables. After graduating from the Hautes Etudes Industrielles, he carried out voluntary service overseas in Saudi Arabia at the King Fahd University of Petroleum and Minerals Research Institute.
Get Price2021-6-18 · Several agricultural wastes, due to their abundant availability, have been used for production of enzymes via fermentation processes. Wheat bran, sugarcane bagasse, rice straw, wheat straw, corn cobs, soy bran, rice husk, coffee husk, and barley are the most common agro-industrial wastes used as substrates (Sanchéz 2009; Hanbyul et al. 2017).
Get Price4. Working as a team member in Saccharification processes to develop packed bed enzymatic saccharification process and Pretreatment of biomass, lignin separation, solvent recovery, kinetic modeling, Process design and development. 5.
Get Price61321, Saudi Arabia. ... development of fermentation processes using cheap carbon sources is important for commercial scale production (Cazetta et al., 2007). ... saccharification activity was 15 IUmg –1, measured as the initial rate of reducing
Get PriceSaccharification and Fermentation by Co-culture Technique To initiate the saccharification process, the cellulose-degrading bacteria were grown in cellulose basal medium at the optimum fermentation conditions with mixing at 120 rpm for 72 hours. The culture …
Get PriceThe noncellulolytic actinomycete Rhodococcus opacus strain PD630 is the model oleaginous prokaryote with regard to the accumulation and biosynthesis of lipids, which serve as carbon and energy storage compounds and can account for as much as 87% of the dry mass of the cell in this strain. In order to establish cellulose degradation in R. opacus PD630, we engineered strains that episomally ...
Get PriceThis plant for baby milk powder and protein drink concentrates was realised by Vogelbusch in 2002 with a process licensed from a German producer of infant formula. The enterprise is the first manufacturer of infant formula in the Middle East. The production capacity is 32 tons per day. The plant location,...
Get PriceFurther, delignified lignocellulosic biomass was subjected to Simultaneous Saccharification and Fermentation (SSF) studies using Kluyveromyces marxianus (MTCC 1389) and commercial cellulase enzyme. The effect of operating parameters such as pH, temperature, substrate concentration and inoculum concentration were investigated and found to be 4.9 ...
Get Price2018-9-17 · inhibition of cellulase, thus it is better to carry out saccharification and fermentation simultaneously. In the same year Mtui, (2009) highlighted various types of pretreatment methods and value added products being obtained from the lignocellulosic wastes. Khan et al., (2011), isolated cellulase producing bacterial strain from cow dung.
Get Price2018-5-15 · Today, amino acids are primarily manufactured via microbial cultivation processes, which are costly, are time consuming, and require extensive separations processes. As an alternative, chemocatalytic approaches to produce amino acids from renewable feedstocks such as bio-based sugars could offer a rapid and potentially more efficient means of amino acid synthesis, but efforts to date …
Get Price2021-6-18 · Several agricultural wastes, due to their abundant availability, have been used for production of enzymes via fermentation processes. Wheat bran, sugarcane bagasse, rice straw, wheat straw, corn cobs, soy bran, rice husk, coffee husk, and barley are the most common agro-industrial wastes used as substrates (Sanchéz 2009; Hanbyul et al. 2017).
Get PriceGet BEST PRICE AT AXTON BOOKS on Biomanufacturing - By Jian-Jiang Zhong - 9783540205012 - (Springer-verlag Berlin Heidelberg) - Advances in bioproducts manufacturing such …
Get Price1991-3-5 · Hao Zhou, Cheng-Zhang Wang, Jian-Zhong Ye, Hong-Xia Chen, Ran Tao, Yu-Si Zhang, Solid-state fermentation of Ginkgo biloba L. residue for optimal production of cellulase, protease and the simultaneous detoxification of Ginkgo biloba L. residue using Candida tropicalis and Aspergillus oryzae, European Food Research and Technology, 10.1007/s00217 ...
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