A novel process for enhancing oil production in algae biorefineries through bioconversion of solid by-products
Journal article
Hernandez, E., Colin, W. and Trzcinski, A. 2012. A novel process for enhancing oil production in algae biorefineries through bioconversion of solid by-products. Bioresource Technology. 116, pp. 295-301. https://doi.org/10.1016/j.biortech.2012.03.078
Authors | Hernandez, E., Colin, W. and Trzcinski, A. |
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Abstract | This paper focuses on a novel process for adding value to algae residue. In current processes oleaginous microalgae are grown and harvested for lipid production leaving a lipid-free algae residue. The process described here includes conversion of the carbohydrate fraction into glucose prior to lipid extraction. This can be fermented to produce up to 15% additional lipids using another oleaginous microorganism. It was found that in situ enzymes can hydrolyze storage carbohydrates in the algae into glucose and that a temperature of 55 °C for about 20 h gave the best glucose yield. Up to 75% of available carbohydrates were converted to a generic fermentation feedstock containing 73 g/L glucose. The bioconversion step was found to increase the free water content by 60% and it was found that when the bioconversion was carried out prior to the extraction step, it improved the solvent extractability of lipids from the algae. |
Keywords | Biorefinery; Fermentation; Carbohydrates; Microalgae; Lipids |
Year | 2012 |
Journal | Bioresource Technology |
Journal citation | 116, pp. 295-301 |
Publisher | Elsevier |
ISSN | 0960-8524 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.biortech.2012.03.078 |
Official URL | http://doi.org/10.1016/j.biortech.2012.03.078 |
Publication dates | |
Online | 30 Mar 2012 |
Publication process dates | |
Deposited | 07 Oct 2020 |
Accepted | 24 Mar 2012 |
https://repository.canterbury.ac.uk/item/8w6q0/a-novel-process-for-enhancing-oil-production-in-algae-biorefineries-through-bioconversion-of-solid-by-products
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