Catalytic Microwave Pyrolysis of Lignocellulosic Biomass for Fuels and Chemicals

2016 ◽  
pp. 69-123 ◽  
Author(s):  
Q. Bu ◽  
H.M. Morgan ◽  
J. Liang ◽  
H. Lei ◽  
R. Ruan
Keyword(s):  
Lignocellulosic Biomass ◽  
Microwave Pyrolysis ◽  
Fuels And Chemicals

scholarly journals Further engineering of R. toruloides for the production of terpenes from lignocellulosic biomass

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
James Kirby ◽  
Gina M. Geiselman ◽  
Junko Yaegashi ◽  
Joonhoon Kim ◽  
Xun Zhuang ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Copy Number ◽  
Mevalonate Pathway ◽  
Mevalonate Kinase ◽  
Metabolite Analysis ◽  
Lignocellulosic Hydrolysate ◽  
Microbial Conversion ◽  
Lignocellulosic Hydrolysates ◽  
Lignocellulosic Feedstocks ◽  
Fuels And Chemicals

Abstract Background Mitigation of climate change requires that new routes for the production of fuels and chemicals be as oil-independent as possible. The microbial conversion of lignocellulosic feedstocks into terpene-based biofuels and bioproducts represents one such route. This work builds upon previous demonstrations that the single-celled carotenogenic basidiomycete, Rhodosporidium toruloides, is a promising host for the production of terpenes from lignocellulosic hydrolysates. Results This study focuses on the optimization of production of the monoterpene 1,8-cineole and the sesquiterpene α-bisabolene in R. toruloides. The α-bisabolene titer attained in R. toruloides was found to be proportional to the copy number of the bisabolene synthase (BIS) expression cassette, which in turn influenced the expression level of several native mevalonate pathway genes. The addition of more copies of BIS under a stronger promoter resulted in production of α-bisabolene at 2.2 g/L from lignocellulosic hydrolysate in a 2-L fermenter. Production of 1,8-cineole was found to be limited by availability of the precursor geranylgeranyl pyrophosphate (GPP) and expression of an appropriate GPP synthase increased the monoterpene titer fourfold to 143 mg/L at bench scale. Targeted mevalonate pathway metabolite analysis suggested that 3-hydroxy-3-methyl-glutaryl-coenzyme A reductase (HMGR), mevalonate kinase (MK) and phosphomevalonate kinase (PMK) may be pathway bottlenecks are were therefore selected as targets for overexpression. Expression of HMGR, MK, and PMK orthologs and growth in an optimized lignocellulosic hydrolysate medium increased the 1,8-cineole titer an additional tenfold to 1.4 g/L. Expression of the same mevalonate pathway genes did not have as large an impact on α-bisabolene production, although the final titer was higher at 2.6 g/L. Furthermore, mevalonate pathway intermediates accumulated in the mevalonate-engineered strains, suggesting room for further improvement. Conclusions This work brings R. toruloides closer to being able to make industrially relevant quantities of terpene from lignocellulosic biomass.

scholarly journals Microwave pyrolysis of lignocellulosic biomass––a contribution to power Africa

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Saifuddin Nomanbhay ◽  
Bello Salman ◽  
Refal Hussain ◽  
Mei Yin Ong
Keyword(s):  
Lignocellulosic Biomass ◽  
Microwave Pyrolysis

Phenols and fuels from catalytic microwave pyrolysis of lignocellulosic biomass

2012 ◽  
Author(s):  
Quan Bu ◽  
Hanwu Lei ◽  
Shoujie Ren ◽  
Lu Wang ◽  
Yupeng Liu ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Microwave Pyrolysis

Heat and Mass Transport in Processing of Lignocellulosic Biomass for Fuels and Chemicals

2009 ◽  
pp. 1-18 ◽  
Author(s):  
Sridhar Viamajala ◽  
Bryon S. Donohoe ◽  
Stephen R. Decker ◽  
Todd B. Vinzant ◽  
Michael J. Selig ◽  
...  
Keyword(s):  
Mass Transport ◽  
Lignocellulosic Biomass ◽  
Heat And Mass Transport ◽  
Fuels And Chemicals

Fuels and Chemicals from Lignocellulosic Biomass: An Integrated Biorefinery Approach

2015 ◽  
Vol 29 (5) ◽  
pp. 3149-3157 ◽  
Author(s):  
Debashish Ghosh ◽  
Diptarka Dasgupta ◽  
Deepti Agrawal ◽  
Savita Kaul ◽  
Dilip Kumar Adhikari ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Integrated Biorefinery ◽  
Fuels And Chemicals

Production of phenols and biofuels by catalytic microwave pyrolysis of lignocellulosic biomass

2012 ◽  
Vol 108 ◽  
pp. 274-279 ◽  
Author(s):  
Quan Bu ◽  
Hanwu Lei ◽  
Shoujie Ren ◽  
Lu Wang ◽  
Qin Zhang ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Microwave Pyrolysis

Microwave pyrolysis of lignocellulosic biomass: Heating performance and reaction kinetics

Energy ◽  
2016 ◽  
Vol 100 ◽  
pp. 137-144 ◽  
Author(s):  
Yu-Fong Huang ◽  
Pei-Te Chiueh ◽  
Wen-Hui Kuan ◽  
Shang-Lien Lo
Keyword(s):  
Reaction Kinetics ◽  
Lignocellulosic Biomass ◽  
Microwave Pyrolysis ◽  
Heating Performance

A thermochemical–biochemical hybrid processing of lignocellulosic biomass for producing fuels and chemicals

2015 ◽  
Vol 33 (8) ◽  
pp. 1799-1813 ◽  
Author(s):  
Yanwen Shen ◽  
Laura Jarboe ◽  
Robert Brown ◽  
Zhiyou Wen
Keyword(s):  
Lignocellulosic Biomass ◽  
Fuels And Chemicals
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