A novel process for enhancing oil production in algae biorefineries through bioconversion of solid by-products
Article
Article Title | A novel process for enhancing oil production in algae biorefineries through bioconversion of solid by-products |
---|---|
ERA Journal ID | 3454 |
Article Category | Article |
Authors | Trzcinski, Antoine P. (Author), Hernandez, Ernesto (Author) and Webb, Colin (Author) |
Journal Title | Bioresource Technology |
Journal Citation | 116, pp. 295-301 |
Number of Pages | 7 |
Year | 2012 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 0960-8524 |
1873-2976 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.biortech.2012.03.078 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S0960852412005421 |
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 |
ANZSRC Field of Research 2020 | 410404. Environmental management |
401102. Environmentally sustainable engineering | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | University of Manchester, United Kingdom |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q3640/a-novel-process-for-enhancing-oil-production-in-algae-biorefineries-through-bioconversion-of-solid-by-products
Download files
1635
total views213
total downloads1
views this month1
downloads this month