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Extraction of phenolic compounds by high hydrostatic pressure from eight edible algae species from the North-West coast of Spain: process modelling and optimization

2019Conference object Open access
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dc.contributor.authorPereira, Antia Gonzalez
dc.contributor.authorJiménez López, Cecília
dc.contributor.authorLopes, C.S.P.L.
dc.contributor.authorBarros, Lillian
dc.contributor.authorPrieto Lage, Miguel A.
dc.contributor.authorFerreira, Isabel C.F.R.
dc.contributor.authorSimal-Gandara, Jesus
dc.date.accessioned2019-06-26T08:55:15Z
dc.date.available2019-06-26T08:55:15Z
dc.date.issued2019
dc.description.abstractTwo thirds of the word are covered by oceans and a vast majority of that upper layer are inhabited by photoautotrophic organisms such as algae. Algae are not only of high ecological, but also of great economic importance. The industrial exploitation of algae has suffered a boom in the last two decades, revealing a source of compounds relevant to a diverse range of sectors (agriculture, energy, food science, cosmeceutical, pharmacology, etc). In consequence, many possible applications have emerged, such as production of biofuels for energy production, as nutraceutical ingredients in fish meals, as fertilizer in landfill applications, anti-biofilm activity in food science, incorporation in cosmeceutical and pharmacological products due to the rich content in bioactive compounds, among others [1]. In this work, high hydrostatic pressure (HHP) was applied to the extraction of phenolic compounds from eight edible algae species (Table 1). The process was optimized by response surface methodology using a five-level central composite design combining the independent variables of processing time (t, 5-90 min), pressure (P, 10-600 MPa) and solvent (S, 0-100 % of ethanol, v/v) [2]. The individual and grouped phenolic compounds were analysed, and the extraction yield were used as response variables. The theoretical models were fitted to the experimental data, statistically validated, and used in the prediction and optimization steps. In general, the optimum extraction conditions for phenolic acids for all eight species analysed were found at shorter values of t, high values of P and high values of S. The identified phenolic compounds were also clustered according to the conditions that maximize their extraction. HHP was highlighted as a promising emerging technology to extract phenolic compounds from edible algae species using a green solvent and reduced extraction times. The analysis presented provides important data that allows the comparison between different extraction conditions, in terms of efficiency, and consequent related decision making. In an industrial level, these methodologies reduce costs related to energy, solvent consumption, equipment investment, etc. Achieving the optimal conditions and maximizing the responses is an important step to guide the choice of a suitable and sustainable process. In conclusion, the present study contributes in the valorisation of edible algae species, common in the North-West region of Spain, by the obtainment of rich extracts in phenolic compounds that potentially can be applied as ingredients in different industrial fields.pt_PT
dc.description.sponsorshipTo AlgaMar for the algae material provided (www.algamar.com). To MICINN for the financial support for the Ramón&Cajal researcher of M.A. Prieto. To University of Vigo for the financial support for the pre-doctoral researchers of A.G. Pereira and C. Jiménez López. The authors are also grateful to the Interreg España-Portugal for financial support through the project 0377_Iberphenol_6_E.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPereira, A.G.; Jiménez López, C.; Lopes, C.S.P.L.; Barros, Lillian; Prieto, M.A.; Ferreira, Isabel C.F.R.; Simal-Gandara, J. (2019). Extraction of phenolic compounds by high hydrostatic pressure from eight edible algae species from the North-West coast of Spain: Process modelling and optimization. In XX EuroFoodChem Conference. Porto. ISBN 978-989-8124-26-5pt_PT
dc.identifier.isbn978-989-8124-26-5
dc.identifier.urihttp://hdl.handle.net/10198/19355
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectExtractionpt_PT
dc.subjectPhenolic compoundspt_PT
dc.titleExtraction of phenolic compounds by high hydrostatic pressure from eight edible algae species from the North-West coast of Spain: process modelling and optimizationpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlacePorto, Portugalpt_PT
oaire.citation.titleXX EuroFoodChem Conferencept_PT
person.familyNameBarros
person.familyNamePrieto
person.familyNameFerreira
person.givenNameLillian
person.givenNameMiguel A.
person.givenNameIsabel C.F.R.
person.identifier469085
person.identifier107688
person.identifier144781
person.identifier.ciencia-id9616-35CB-D001
person.identifier.ciencia-id221E-1E00-AB74
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0002-3513-0054
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridJ-3600-2013
person.identifier.ridG-4516-2011
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id35236343600
person.identifier.scopus-author-id35937495700
person.identifier.scopus-author-id36868826600
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublication3af07ffe-f914-48ba-a5d5-efcf70fdce01
relation.isAuthorOfPublication13260615-fd28-4b8b-9dd4-8a8466007579
relation.isAuthorOfPublicationbd0d1537-2e03-41fb-b27a-140af9c35db8
relation.isAuthorOfPublication.latestForDiscovery13260615-fd28-4b8b-9dd4-8a8466007579

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