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Production of bioethanol from biomass feedstocks (RRS) - Coggle Diagram
Production of bioethanol from
biomass feedstocks
(RRS)
"Use of Empty Fruit Bunches from the Oil Palm for bioethanol production:
A thorough comparison between dilute acid and dilute alkali pretreatment"
Method
Two pretreatment techniques using either dilute acid (H2SO4) or dilute alkali (NaOH)
have been compared for producing bioethanol from Empty Fruit Bunches (EFBs) from oil palm tree.
Problem
Growing energy demand and environmental concern caused by fossil fuels.
Result
Treatment with dilute alkali has lower performance than stronger alkali, suggesting stronger alkali regime is necessary to improve performance.
"Production of Bioethanol from Rice Straw by Simultaneous Saccharification and Fermentation of Whole Pretreated Slurry Using Saccharomyces cerevisiae KF-7 (semantic)"
Method
simultaneous saccharification and fermentation (SSF)
Problem
Unefficient conversion of rice straw in to ethanol
Result
The pretreatment that was treated to SSF effectively converted rice straw into ethanol.
"Cogon grass (Imperata cylindrica), a potential biomass candidate for bioethanol:
cell wall structural changes enhancing hydrolysis in a mild alkali pretreatment regime."
Method
Varied concentrations of NaOH (0, 7.5, 15, 20, and 25 g L−1) were applied as treatments to Imperata at 105 ∘C for 10 min
Problem
evaluate a mild alkali pretreatment effect on the Imperata recalcitrant structure.
Result
Considering the cost of pretreatment, the 20 g L−1 NaOH treatment is judged to be
effective for disrupting Imperata recalcitrance in this pretreatment regime.
"Bioethanol Production from Oil Palm Empty Fruit Bunches Using Saccharomyces cerevisiae Immobilized on Sodium Alginate Beads"
Method
Cerevisiae immobilized on Na-alginate beads and to compare the performance of fermentation using immobilized yeast cells and that of using a free cell system
Problem
"Effects of time, temperature, pH, immobilized yeast cell loading,
beads reuse during ethanol production"
Result
An immobilized cell system has potential for improved ethanol production due to its ability to sustain stability, reduce contamination, and protect yeast cells from inhibitions.
"Bioethanol production from rice straw by popping pretreatment"
Method
Popping pretreatment of rice straw can effectively improve downstream saccharification and
fermentation and important for bioethanol production.
Problem
· Significant Impact of the food prices and the food security in bioethanol production
Result
The results showed little or no difference in chemical composition between the pretreated rice straw and the control.
However, the surface area of pretreated rice straw increased twofold compared to the control.