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An integrated process for the extraction of fuel and chemicals from marine macroalgal biomass

Trivedi, Nitin; Baghel, Ravi S.; Bothwell, John; Gupta, Vishal; Reddy, C.R.K.; Lali, Arvind M.; Jha, Bhavanath

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Authors

Nitin Trivedi

Ravi S. Baghel

Vishal Gupta

C.R.K. Reddy

Arvind M. Lali

Bhavanath Jha



Abstract

We describe an integrated process that can be applied to biomass of the green seaweed, Ulva fasciata, to allow the sequential recovery of four economically important fractions; mineral rich liquid extract (MRLE), lipid, ulvan, and cellulose. The main benefits of our process are: a) its simplicity and b) the consistent yields obtained from the residual biomass after each successive extraction step. For example, dry Ulva biomass yields ~26% of its starting mass as MRLE, ~3% as lipid, ~25% as ulvan, and ~11% as cellulose, with the enzymatic hydrolysis and fermentation of the final cellulose fraction under optimized conditions producing ethanol at a competitive 0.45 g/g reducing sugar. These yields are comparable to those obtained by direct processing of the individual components from primary biomass. We propose that this integration of ethanol production and chemical feedstock recovery from macroalgal biomass could substantially enhance the sustainability of marine biomass use.

Citation

Trivedi, N., Baghel, R. S., Bothwell, J., Gupta, V., Reddy, C., Lali, A. M., & Jha, B. (2016). An integrated process for the extraction of fuel and chemicals from marine macroalgal biomass. Scientific Reports, 6(1), Article 30728. https://doi.org/10.1038/srep30728

Journal Article Type Article
Acceptance Date Jul 7, 2016
Online Publication Date Jul 29, 2016
Publication Date Jul 29, 2016
Deposit Date Mar 28, 2017
Publicly Available Date Mar 29, 2017
Journal Scientific Reports
Publisher Nature Research
Peer Reviewed Peer Reviewed
Volume 6
Issue 1
Article Number 30728
DOI https://doi.org/10.1038/srep30728

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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/





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