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Comparison of different pretreatment processes envisaging the potential use of food waste as microalgae substrate

2024-04Journal article Open access
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dc.contributor.authorMarques, Fabiana
dc.contributor.authorPereira, Francisco
dc.contributor.authorMachado, Luís
dc.contributor.authorMartins, Joana T.
dc.contributor.authorPereira, Ricardo N.
dc.contributor.authorCosta, Monya
dc.contributor.authorGenisheva, Zlatina
dc.contributor.authorPereira, Hugo
dc.contributor.authorVicente, António A.
dc.contributor.authorTeixeira, José A.
dc.contributor.authorGeada, Pedro
dc.date.accessioned2024-05-02T10:00:43Z
dc.date.available2024-05-02T10:00:43Z
dc.date.issued2024-04
dc.description.abstractA significant fraction of the food produced worldwide is currently lost or wasted throughout the supply chain, squandering natural and economic resources. Food waste valorization will be an important necessity in the coming years. This work investigates the ability of food waste to serve as a viable nutritional substrate for the heterotrophic growth of Chlorella vulgaris. The impact of different pretreatments on the elemental composition and microbial contamination of seven retail food waste mixtures was evaluated. Among the pretreatment methods applied to the food waste formulations, autoclaving was able to eliminate all microbial contamination and increase the availability of reducing sugars by 30%. Ohmic heating was also able to eliminate most of the contaminations in the food wastes in shorter time periods than autoclave. However, it has reduced the availability of reducing sugars, making it less preferable for microalgae heterotrophic cultivation. The direct utilization of food waste containing essential nutrients from fruits, vegetables, dairy and bakery products, and meat on the heterotrophic growth of microalgae allowed a biomass concentration of 2.2 x 108 cells center dot mL-1, being the culture able to consume more than 42% of the reducing sugars present in the substrate, thus demonstrating the economic and environmental potential of these wastes.pt_PT
dc.description.sponsorship2022.00930.CEECIND/CP1718/CT0023; 2022.00788.CEECIND/CP1718/CT0024; SFRH/BD/07475/2020pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3390/foods13071018pt_PT
dc.identifier.eissn2304-8158
dc.identifier.urihttp://hdl.handle.net/10400.1/20687
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationCentre of Biological Engineering of the University of Minho
dc.relationAssociate Laboratory on Biotechnology, Bioengineering and microELectromechanical Systems
dc.relationSystemic Innovations Towards a Zero Food Waste Supply Chain
dc.relationNot Available
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectWaste valorizationpt_PT
dc.subjectAutoclavingpt_PT
dc.subjectOhmic heatingpt_PT
dc.subjectCircular economypt_PT
dc.subjectHeterotrophypt_PT
dc.titleComparison of different pretreatment processes envisaging the potential use of food waste as microalgae substratept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre of Biological Engineering of the University of Minho
oaire.awardTitleAssociate Laboratory on Biotechnology, Bioengineering and microELectromechanical Systems
oaire.awardTitleSystemic Innovations Towards a Zero Food Waste Supply Chain
oaire.awardTitleNot Available
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04469%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0029%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/101036388/EU
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND 2017/CEECIND%2F02903%2F2017%2FCP1458%2FCT0006/PT
oaire.citation.issue7pt_PT
oaire.citation.startPage1018pt_PT
oaire.citation.titleFoodspt_PT
oaire.citation.volume13pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamH2020
oaire.fundingStreamCEEC IND 2017
person.familyNameCosta
person.familyNamePereira
person.givenNameMonya
person.givenNameHugo
person.identifier282781
person.identifier.ciencia-id331E-84FD-2F34
person.identifier.orcid0000-0002-4236-9063
person.identifier.orcid0000-0002-1369-2099
person.identifier.ridE-9360-2015
person.identifier.scopus-author-id8094380800
person.identifier.scopus-author-id54080259900
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameEuropean Commission
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication719331b8-3074-44b6-a3ab-748d85367866
relation.isAuthorOfPublicationebcb2180-5235-4502-b562-cd1e7786e6f9
relation.isAuthorOfPublication.latestForDiscovery719331b8-3074-44b6-a3ab-748d85367866
relation.isProjectOfPublication3a508ddf-c25b-4458-ae4c-4e254dfb20d6
relation.isProjectOfPublicationece8d4a0-fc62-4de9-a509-8dca57065a53
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