Publication
Extraction of phenolic compounds from Juglans regia L. optimized by response surface methodology
| dc.contributor.author | Vieira, Vanessa | |
| dc.contributor.author | Ferreira, Olga | |
| dc.contributor.author | Barros, Lillian | |
| dc.contributor.author | Prieto Lage, Miguel A. | |
| dc.contributor.author | Coutinho, João A.P. | |
| dc.contributor.author | Ferreira, Isabel C.F.R. | |
| dc.date.accessioned | 2017-01-17T09:23:57Z | |
| dc.date.available | 2017-01-17T09:23:57Z | |
| dc.date.issued | 2016 | |
| dc.description.abstract | The studies on plant secondary metabolites extraction, namely phenolic compounds, are increasing due to their in vitro bioactivity and marked effects on oxidative process related to several health diseases. Moreover, they have been widely used in pharmaceuticals, functional foods and natural cosmetics [1]. The solid-liquid extraction of these compounds from biomass is usually carried out using organic solvents such as methanol, ethanol, acetone and ethyl acetate. In this context, microwave assisted extraction (MAE) is one of the most employed alternative extraction methods commonly using methanol or ethanol in different concentrations by dilution with water. Ethanol will be selected in this work due to its lower toxicity. In addition, this alcohol can be obtained from renewable sources and is safe for human consumption. Among the advantages reported for MAE are its lower extraction times and solvent consumption, when compared to conventional methods [2-4]. Our research group is interested in the green extraction of valuable compounds from biomass and there are previous evidences that walnut leaves are rich in phenolic acids and flavonoids [5]. In the present work, a 5-level full factorial Box–Behnken design was successfully implemented for maceration and MAE optimization, in which the ethanol concentration (Et), processing time (t), temperature (T), and solid/liquid ratio (S/L) were relevant independent variables. HPLC-DAD results showed that MAE is more effective extracting higher contents of phenolic compounds than conventional maceration in a lower processing time. | pt_PT |
| dc.description.sponsorship | This work was financially supported by: Project POCI-01-0145-FEDER-006984 – Associate Laboratory LSRE-LCM funded by FEDER through COMPETE2020 - Programa Operacional Competitividade e Internacionalização (POCI) – and by national funds through FCT - Fundaç ão para a Ciência e a Tecnologia; POCI-01-0145-FEDER-007679 (FCT Ref. UID/CTM/50011/2013), CIMO (UID/AGR/00690/2013) financed by national funds through the FCT/MEC and when appropriate co-financed by FEDER under the PT2020 Partnership Agreement; FCT for SFRH/BD/108487/2015 and SFRH/BPD/107855/2015 grants to V. Vieira and L. Barros, respectively; to Xunta de Galicia for financial support for the post-doctoral researcher of M.A. Prieto. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.citation | Vieira, Vanessa; Ferreira, Olga; Barros, Lillian; Prieto, M.A.; Coutinho, João A.P.; Ferreira, Isabel C.F.R. (2016). Extraction of phenolic compounds from Juglans regia L. optimized by response surface methodology. In XXII Encontro Luso-Galego de Química. Bragança. ISBN 978-989-8124-17-3 | pt_PT |
| dc.identifier.isbn | 978-989-8124-17-3 | |
| dc.identifier.uri | http://hdl.handle.net/10198/13817 | |
| dc.language.iso | por | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.relation | Using natural deep eutectic solvents for the extraction of bioactive compounds from plant material: valorizing walnut residues through the development of bio-based semi-solid formulas for topical use | |
| dc.relation | Providing industry and consumers with new alternative sources of natural additives from plant origin in the classes of preservatives and colouring agents: extraction, purification, stabilization and product development | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
| dc.title | Extraction of phenolic compounds from Juglans regia L. optimized by response surface methodology | pt_PT |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| oaire.awardTitle | Using natural deep eutectic solvents for the extraction of bioactive compounds from plant material: valorizing walnut residues through the development of bio-based semi-solid formulas for topical use | |
| oaire.awardTitle | Providing industry and consumers with new alternative sources of natural additives from plant origin in the classes of preservatives and colouring agents: extraction, purification, stabilization and product development | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/5876/UID%2FCTM%2F50011%2F2013/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/5876/UID%2FAGR%2F00690%2F2013/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F108487%2F2015/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F107855%2F2015/PT | |
| oaire.citation.conferencePlace | Bragança, Portugal | pt_PT |
| oaire.citation.title | XXII Encontro Luso-Galego de Química | pt_PT |
| oaire.fundingStream | 5876 | |
| oaire.fundingStream | 5876 | |
| person.familyName | Ferreira | |
| person.familyName | Barros | |
| person.familyName | Prieto Lage | |
| person.familyName | Ferreira | |
| person.givenName | Olga | |
| person.givenName | Lillian | |
| person.givenName | Miguel A. | |
| person.givenName | Isabel C.F.R. | |
| person.identifier | 469085 | |
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| person.identifier.orcid | 0000-0001-8414-3479 | |
| person.identifier.orcid | 0000-0002-9050-5189 | |
| person.identifier.orcid | 0000-0002-3513-0054 | |
| person.identifier.orcid | 0000-0003-4910-4882 | |
| person.identifier.rid | M-4567-2013 | |
| person.identifier.rid | J-3600-2013 | |
| person.identifier.rid | G-4516-2011 | |
| person.identifier.rid | E-8500-2013 | |
| person.identifier.scopus-author-id | 57203083219 | |
| person.identifier.scopus-author-id | 35236343600 | |
| person.identifier.scopus-author-id | 35937495700 | |
| person.identifier.scopus-author-id | 36868826600 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | conferenceObject | pt_PT |
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