scholarly journals Characterization of a microbial consortium with potential for biological degradation of cactus pear biomass for biofuel production

Heliyon ◽  
2021 ◽  
pp. e07854
Author(s):  
Brittany B. Blair ◽  
Won Cheol Yim ◽  
John C. Cushman
Keyword(s):  
Microbial Consortium ◽  
Biofuel Production ◽  
Biological Degradation ◽  
Cactus Pear

scholarly journals Pretreatment of Switchgrass for Production of Glucose via Sulfonic Acid-Impregnated Activated Carbon

Processes ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 504
Author(s):  
Yane Ansanay ◽  
Praveen Kolar ◽  
Ratna Sharma-Shivappa ◽  
Jay Cheng ◽  
Consuelo Arellano
Keyword(s):  
Activated Carbon ◽  
Sulfonic Acid ◽  
Solid Acid ◽  
Methanesulfonic Acid ◽  
Biofuel Production ◽  
Acid Catalysts ◽  
Effects Of Temperature ◽  
Carbon Catalysts ◽  
Hydrolysis Of

In the present research, activated carbon-supported sulfonic acid catalysts were synthesized and tested as pretreatment agents for the conversion of switchgrass into glucose. The catalysts were synthesized by reacting sulfuric acid, methanesulfonic acid, and p-toluenesulfonic acid with activated carbon. The characterization of catalysts suggested an increase in surface acidities, while surface area and pore volumes decreased because of sulfonation. Batch experiments were performed in 125 mL serum bottles to investigate the effects of temperature (30, 60, and 90 °C), reaction time (90 and 120 min) on the yields of glucose. Enzymatic hydrolysis of pretreated switchgrass using Ctec2 yielded up to 57.13% glucose. Durability tests indicated that sulfonic solid-impregnated carbon catalysts were able to maintain activity even after three cycles. From the results obtained, the solid acid catalysts appear to serve as effective pretreatment agents and can potentially reduce the use of conventional liquid acids and bases in biomass-into-biofuel production.

scholarly journals Characterization of sugarcane (Saccharum spp.) leaf senescence: implications for biofuel production

2016 ◽  
Vol 9 (1) ◽  
Author(s):  
Maria Thereza Bazzo Martins ◽  
Wagner Rodrigo de Souza ◽  
Bárbara Andrade Dias Brito da Cunha ◽  
Marcos Fernando Basso ◽  
Nelson Geraldo de Oliveira ◽  
...  
Keyword(s):  
Leaf Senescence ◽  
Biofuel Production ◽  
Saccharum Spp

scholarly journals The Enrichment And Characterization Of Compost And Wastewater-Derived Microbial Cellulolytic Consortia For Biofuel Production

2021 ◽  
Author(s):  
Augustyna Dobosz
Keyword(s):  
Energy Demand ◽  
Defined Medium ◽  
Biofuel Production ◽  
Microbial Consortia ◽  
Extraction And Purification ◽  
End Products ◽  
Fermentative Activity ◽  
Incubation Temperatures ◽  
Current Energy

Over the last decade, a rise in energy demand and diminishing fuel resources have created a challenge for finding an alternative solution that could supplement our current energy sources. This study demonstrated that ethanol and other useful end-products can be produced from the fermentative activity of microbial consortia derived from cellulose-rich waste environments. Compost and wastewater were used as inoculum sources to enrich cellulolytic cultures at incubation temperatures 50 ºC and 60ºC. A chemically defined medium was used without complex nutrients such as yeast extract. Four cellulolytic cultures were obtained and their end-products were monitored over an active cellulose degrading period. The compost culture incubated at 50ºC produced the highest concentration of butyrate while the wastewater-derived culture incubated at 60ºC produced the highest ethanol concentration. Optimization of DNA extraction and purification from complex environmental samples such as the compost and wastewater cultures used in this study was also discussed.

scholarly journals Production and Characterization of Esterase in Lantinus tigrinus for Degradation of Polystyrene

2013 ◽  
Vol 62 (1) ◽  
pp. 101-108 ◽  
Author(s):  
LUBNA TAHIR ◽  
MUHAMMAD ISHTIAQ ALI ◽  
MUHAMMAD ZIA ◽  
NAIMA ATIQ ◽  
FARIHA HASAN ◽  
...  
Keyword(s):  
Acidic Medium ◽  
Specific Activity ◽  
Mineral Salt Medium ◽  
Tween 80 ◽  
Synthetic Polymers ◽  
Ftir Analysis ◽  
Polystyrene Film ◽  
Biological Degradation ◽  
Ph Range

Polystyrene is considered stable to biological degradation. Lantinus tigrinus isolated from wood sample produced esterase in growth medium under normal conditions. However, acidic medium, 37 degrees C temperature, presence of tween 80; and urea and yeast extract in mineral salt medium enhance the production of esterase and specific activity. Purified esterase was active at broad pH range and 45 degrees C. FTIR analysis confirmed that esterase produced by Lantinus tigrinus effectively degraded polystyrene film and broke macromolecules down to non-toxic molecules. This study concludes that the presence of Lantinus tigrinus at dumping sites can be exploited for waste management containing high molecular weight synthetic polymers.

Thermochemical characterization of Nigerian Jatropha curcas fruit and seed residues for biofuel production

2018 ◽  
Vol 3 (6) ◽  
pp. 330-337 ◽  
Author(s):  
T. E. Odetoye ◽  
T. J. Afolabi ◽  
M. S. Abu Bakar ◽  
J. O. Titiloye
Keyword(s):  
Jatropha Curcas ◽  
Biofuel Production

scholarly journals Patatin-Related Phospholipase AtpPLAIIIα Affects Lignification of Xylem in Arabidopsis and Hybrid Poplars

Plants ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 451 ◽  
Author(s):  
Jin Hoon Jang ◽  
Ok Ran Lee
Keyword(s):  
Cell Walls ◽  
Lignin Content ◽  
Lignin Biosynthesis ◽  
Biofuel Production ◽  
Amide Bonds ◽  
Hybrid Poplars ◽  
Plant Lipids ◽  
Lipid Acyl Hydrolase ◽  
Specific Regulation

Lipid acyl hydrolase are a diverse group of enzymes that hydrolyze the ester or amide bonds of fatty acid in plant lipids. Patatin-related phospholipase AIIIs (pPLAIIIs) are one of major lipid acyl hydrolases that are less closely related to potato tuber patatins and are plant-specific. Recently, overexpression of ginseng-derived PgpPLAIIIβ was reported to be involved in the reduced level of lignin content in Arabidopsis and the mature xylem layer of poplar. The presence of lignin-polysaccharides renders cell walls recalcitrant for pulping and biofuel production. The tissue-specific regulation of lignin biosynthesis, without altering all xylem in plants, can be utilized usefully by keeping mechanical strength and resistance to various environmental stimuli. To identify another pPLAIII homolog from Arabidopsis, constitutively overexpressed AtpPLAIIIα was characterized for xylem lignification in two well-studied model plants, Arabidopsis and poplar. The characterization of gene function in annual and perennial plants with respect to lignin biosynthesis revealed the functional redundancy of less lignification via downregulation of lignin biosynthesis-related genes.

Characterization of self-assembled bioflocculant from the microbial consortium and its applications

2020 ◽  
Vol 258 ◽  
pp. 110000 ◽  
Author(s):  
R.T.V. Vimala ◽  
J. Lija Escaline ◽  
S. Sivaramakrishnan
Keyword(s):  
Microbial Consortium ◽  
Self Assembled
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