biomass feedstocks
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2022 ◽  
Vol 154 ◽  
pp. 111814
Author(s):  
Qingyin Li ◽  
Xiangzhou Yuan ◽  
Xun Hu ◽  
Erik Meers ◽  
Hwai Chyuan Ong ◽  
...  

2022 ◽  
pp. 39-72
Author(s):  
A.V. Umakanth ◽  
Aviraj Datta ◽  
B. Suresh Reddy ◽  
Sougata Bardhan

Author(s):  
Asif Ali Siyal ◽  
Yang Liu ◽  
Babar Ali ◽  
Xiao Mao ◽  
Sakhawat Hussain ◽  
...  
Keyword(s):  

Evergreen ◽  
2021 ◽  
Vol 8 (4) ◽  
pp. 890-895
Author(s):  
Sri RH Siregar ◽  
Daragantina Nursani ◽  
A. Wiyono ◽  
T.P.S.I Pratiwi

2021 ◽  
Author(s):  
Timothy Rials ◽  
Timothy McDonald ◽  
Steven Taylor ◽  
Thomas Gallagher ◽  
Niki Labbe ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
pp. 111-132
Author(s):  
Muhammad Usman ◽  
Shuo Cheng ◽  
Jeffrey Scott Cross

Many tropical islands, including Aruba, Seychelles, Mauritius, and Pacific Island countries, are entirely dependent on importing fossil fuels to meet their energy demands. Due to global warming, improving energy use efficiency and developing regionally available renewable energy resources are necessary to reduce carbon emissions. This review analyzed and identified biomass feedstocks to produce liquid biofuels targeting tropical islands, particularly focusing on Hawaii as a case study. Transportation and energy generation sectors consume 25.5% and 11.6%, respectively, of Hawaii's imported fossil fuels. Various nonedible feedstocks with information on their availability, production, and average yields of oils, fiber, sugars, and lipid content for liquid biofuels production are identified to add value to the total energy mix. The available biomass conversion technologies and production costs are summarized. In addition, a section on potentially using sewage sludge to produce biodiesel is also included. Based on a comparative analysis of kamani, croton, pongamia, jatropha, energycane, Leucaena hybrid, gliricidia, and eucalyptus feedstock resources, this study proposes that Hawaii and other similar tropical regions can potentially benefit from growing and producing economical liquid biofuels locally, especially for the transportation and electricity generation sectors


2021 ◽  
Vol 11 (1) ◽  
pp. 111-132
Author(s):  
Muhammad Usman ◽  
Shuo Cheng ◽  
Jeffrey Scott Cross

Many tropical islands, including Aruba, Seychelles, Mauritius, and Pacific Island countries, are entirely dependent on importing fossil fuels to meet their energy demands. Due to global warming, improving energy use efficiency and developing regionally available renewable energy resources are necessary to reduce carbon emissions. This review analyzed and identified biomass feedstocks to produce liquid biofuels targeting tropical islands, particularly focusing on Hawaii as a case study. Transportation and energy generation sectors consume 25.5% and 11.6%, respectively, of Hawaii's imported fossil fuels. Various nonedible feedstocks with information on their availability, production, and average yields of oils, fiber, sugars, and lipid content for liquid biofuels production are identified to add value to the total energy mix. The available biomass conversion technologies and production costs are summarized. In addition, a section on potentially using sewage sludge to produce biodiesel is also included. Based on a comparative analysis of kamani, croton, pongamia, jatropha, energycane, Leucaena hybrid, gliricidia, and eucalyptus feedstock resources, this study proposes that Hawaii and other similar tropical regions can potentially benefit from growing and producing economical liquid biofuels locally, especially for the transportation and electricity generation sectors


Fermentation ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. 216
Author(s):  
Brian Thompson ◽  
Michael Machas ◽  
Omar Abed ◽  
David R. Nielsen

Phenol is an important petrochemical that is conventionally used as a precursor for synthesizing an array of plastics and fine chemicals. As an emerging alternative to its traditional petrochemical production, multiple enzyme pathways have been engineered to date to enable its renewable biosynthesis from biomass feedstocks, each incorporating unique enzyme chemistries and intermediate molecules. Leveraging all three of the unique phenol biosynthesis pathways reported to date, a series of synthetic ‘metabolic funnels’ was engineered, each with the goal of maximizing net precursor assimilation and flux towards phenol via the parallel co-expression of multiple distinct pathways within the same Escherichia coli host. By constructing and evaluating all possible binary and tertiary pathway combinations, one ‘funnel’ was ultimately identified, which supported enhanced phenol production relative to all three individual pathways by 16 to 69%. Further host engineering to increase endogenous precursor availability then allowed for 26% greater phenol production, reaching a final titer of 554 ± 19 mg/L and 28.8 ± 0.34 mg/g yield on glucose. Lastly, using a diphasic culture including dibutyl phthalate for in situ phenol extraction, final titers were further increased to a maximum of 812 ± 145 mg/L at a yield of 40.6 ± 7.2 mg/g. The demonstrated ‘funneling’ pathway holds similar promise in support of phenol production by other, non-E. coli hosts, while this general approach can be readily extended towards a diversity of other value-added bioproducts of interest.


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