Techno-economic assessment of microalgae production, harvesting and drying for food, feed, cosmetics, and agriculture

Vázquez-Romero, Bárbara; Perales, José Antonio; Pereira, Hugo; Barbosa, Maria; Ruiz, Jesús

Publication

Techno-economic assessment of microalgae production, harvesting and drying for food, feed, cosmetics, and agriculture

2022Journal article

dc.contributor.author	Vázquez-Romero, Bárbara
dc.contributor.author	Perales, José Antonio
dc.contributor.author	Pereira, Hugo
dc.contributor.author	Barbosa, Maria
dc.contributor.author	Ruiz, Jesús
dc.date.accessioned	2022-11-25T13:42:37Z
dc.date.available	2022-11-25T13:42:37Z
dc.date.issued	2022
dc.description.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).	pt_PT
dc.description.version	info:eu-repo/semantics/publishedVersion	pt_PT
dc.identifier.doi	10.1016/j.scitotenv.2022.155742	pt_PT
dc.identifier.issn	0048-9697
dc.identifier.uri	http://hdl.handle.net/10400.1/18541
dc.language.iso	eng	pt_PT
dc.peerreviewed	yes	pt_PT
dc.publisher	Elsevier	pt_PT
dc.relation	Microalgae As a Green source for Nutritional Ingredients for Food/Feed and Ingredients for Cosmetics by cost-Effective New Technologies
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	pt_PT
dc.subject	Microalgae	pt_PT
dc.subject	Production cost	pt_PT
dc.subject	Industrial scale	pt_PT
dc.subject	Tubular photobioreactor	pt_PT
dc.subject	Cost analysis	pt_PT
dc.title	Techno-economic assessment of microalgae production, harvesting and drying for food, feed, cosmetics, and agriculture	pt_PT
dc.type	journal article
dspace.entity.type	Publication
oaire.awardTitle	Microalgae As a Green source for Nutritional Ingredients for Food/Feed and Ingredients for Cosmetics by cost-Effective New Technologies
oaire.awardURI	info:eu-repo/grantAgreement/EC/H2020/745754/EU
oaire.citation.startPage	155742	pt_PT
oaire.citation.title	Science of The Total Environment	pt_PT
oaire.citation.volume	837	pt_PT
oaire.fundingStream	H2020
person.familyName	Pereira
person.givenName	Hugo
person.identifier	282781
person.identifier.ciencia-id	331E-84FD-2F34
person.identifier.orcid	0000-0002-1369-2099
person.identifier.rid	E-9360-2015
person.identifier.scopus-author-id	54080259900
project.funder.identifier	http://doi.org/10.13039/501100008530
project.funder.name	European Commission
rcaap.rights	openAccess	pt_PT
rcaap.type	article	pt_PT
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