Back to Search
Start Over
Hydrogel-based photobioreactor for Solid-State cultivation of Chlorella vulgaris.
- Source :
-
Bioresource technology [Bioresour Technol] 2024 Sep; Vol. 408, pp. 131105. Date of Electronic Publication: 2024 Jul 15. - Publication Year :
- 2024
-
Abstract
- Solid-state cultivation is a promising technology for algal biomass production, achieving high productivities without the need for dewatering. However, such systems have suffered from high evaporation, and capital costs. Here is described a hydrogel photobioreactor (hPBR) with the aim of reducing water demand in solid-state cultivations. Two designs are described with "Design A" offering better humidity control overgrowth conditions. A biomass productivity of 2.41gm <superscript>-2</superscript> d <superscript>-1</superscript> , and 2.87gm <superscript>-2</superscript> d <superscript>-1</superscript> when using physically crosslinked poly(vinyl alcohol) (pPVA) and chemically crosslinked PVA (cPVA) respectively were achieved with Chlorella vulgaris with a water demand around 0.44 kg g <superscript>-1</superscript> of biomass. Over the 23 days of growth, the lipid content increased from 18.9 % to 56.6 % and 13.8 % to 43.2 % for pPVA and cPVA respectively, and the chlorophyll content decreased by more than 81 %. However, cell viability stayed high at over 98 % and surface coverage analysis showed good coverage of the gel surface.<br />Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.<br /> (Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1873-2976
- Volume :
- 408
- Database :
- MEDLINE
- Journal :
- Bioresource technology
- Publication Type :
- Academic Journal
- Accession number :
- 39002883
- Full Text :
- https://doi.org/10.1016/j.biortech.2024.131105