Journal article
Techno-economic assessment of microalgae production, harvesting and drying for food, feed, cosmetics, and agriculture
The Science of the total environment, Vol.837, pp.155742-155742
09/01/2022
DOI: 10.1016/j.scitotenv.2022.155742
PMID: 35526636
Abstract
The objective of this techno-economic analysis is to define the costs for an industrial microalgae production process, comparing different operation strategies (Nannochloropsis oceanica cultivation during the whole year or cultivation of two species, where Phaeodactylum tricornutum and Tisochrysis lutea alternate), production scales (1 and 10 ha), har -vesting technologies (centrifugation or ultrafiltration) and drying methods (freeze-drying or spray drying). This study is based on an industrial scale process established in the south of Portugal. The strategy of cultivating N. oceanica all year round is more attractive from an economic perspective, with production costs of 53.32 euro/kg DW anda productiv-ity of 27.61 t/y for a scale of 1 ha, a 49.31% lower cost and two-fold productivity than species alternation culture strat-egy. These results are for biomass harvested by centrifugation (10.65% biomass cost) and freeze-drying (20.15% biomass cost). These costs could be reduced by 7.03% using a combination of ultrafiltration and spray drying, up to 17.99% if expanded to 10 ha and 10.92% if fertilisers were used instead of commercial nutrient solutions. The study shows potentially competitive costs for functional foods, food, and feed additives, specialised aquaculture prod-ucts (live feed enrichment) and other high value applications (e.g., cosmetics).
Details
- Title: Subtitle
- Techno-economic assessment of microalgae production, harvesting and drying for food, feed, cosmetics, and agriculture
- Creators
- Barbara Vazquez-Romero - Universidad de CádizJose Antonio Perales - Universidad de CádizHugo Pereira - University of AlgarveMaria Barbosa - Wageningen University & ResearchJesus Ruiz - Universidad de Cádiz
- Resource Type
- Journal article
- Publication Details
- The Science of the total environment, Vol.837, pp.155742-155742
- DOI
- 10.1016/j.scitotenv.2022.155742
- PMID
- 35526636
- NLM abbreviation
- Sci Total Environ
- ISSN
- 0048-9697
- eISSN
- 1879-1026
- Publisher
- Elsevier
- Number of pages
- 10
- Grant note
- 745754 / "Microalgae As a Green source of Nutritional Ingredients for Food/Feed and Ingredients for Cosmetics by cost-Effective New Technologies" (MAGNIFICENT) - EU 745754 / Bio-based Industries Joint Technology Initiative under the EU Algades (Alga Development, Engineering and Services, SSL) University of Cadiz
- Language
- English
- Date published
- 09/01/2022
- Academic Unit
- International Programs; Spanish and Portuguese
- Record Identifier
- 9984398009802771
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