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Seed oil and seed oil byproducts of common purslane (Portulaca oleracea L.): a new insight to plant-based sources rich in omega-3 fatty acids

2020Journal article Open access
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dc.contributor.authorPetropoulos, Spyridon Α.
dc.contributor.authorFernandes, Ângela
dc.contributor.authorArampatzis, Dimitrios A.
dc.contributor.authorTsiropoulos, Nikolaos G.
dc.contributor.authorPetrović, Jovana
dc.contributor.authorSoković, Marina
dc.contributor.authorBarros, Lillian
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2018-02-19T10:00:00Z
dc.date.accessioned2020-06-22T10:18:32Z
dc.date.available2018-01-19T10:00:00Z
dc.date.available2020-06-22T10:18:32Z
dc.date.issued2020
dc.description.abstractIn the present study, nutritional value, chemical composition and bioactive properties of purslane seeds, seed oils and seedcakes were examined. Data were analyzed by a one-way ANOVA, while means were compared with Tukey's HSD test. For seed oil extraction mechanical and ultrasound assisted methods were tested. Cold extraction methods (CE1 and CE2) resulted in higher oil yield (increased by 33.7% and 38.1%, respectively) comparing to hot extraction (HE) method. Seeds contained the highest amount of fats and energy (15.03 ± 0.06 g/100 g dry basis (db) and 459 ± 1 kcal/100 g db, respectively), while seedcakes from CE2 had the highest content in proteins and ash (31.20 ± 0.03 and 4.27 ± 0.06 g/100 g db, respectively). Seeds and seedcakes contained a balanced content of linoleic and α-linolenic acids (33.80–34.74% and 32.83–34.64%, respectively). HE and CE1 oils had slightly higher amounts of α-linolenic (39.67% and 39.57%, respectively) than linoleic acid (35.44% and 35.13%, respectively), whereas CE2 oils contained twice as much linoleic as α- linolenic acid (49.77% and 24.18%, respectively). In conclusion, the tested materials are good sources of omega- 6 and omega-3 fatty acids and proteins, while extraction method affected oil yield and fatty acids composition of seed oils.
dc.description.sponsorshipAgricultural Machinery, University of Thessaly, Greece, for providing the equipment and technical assistance for hot extraction of seed oils. We are also thankful to Mr. Tsolakidis C. (Giachanas - Cold Pressed Seed Oils S.A.; Evros, Greece) for providing the equipment and technical assistance for cold extraction of seed oils. The authors are also grateful to the Foundation for Science and Technology (FCT, Portugal) and FEDER under Programme PT2020 for financial support to CIMO (UID/AGR/00690/2019). L. Barros and A. Fernandes would like to thank the national funding by FCT, P.I., through the institutional scientific employment program-contract for their contracts.
dc.description.versioninfo:eu-repo/semantics/publishedVersionen_EN
dc.identifier.citationPetropoulos, Spyridon A.; Fernandes, Ângela; Arampatzis, Dimitrios A.; Tsiropoulos, Nikolaos G.; Petrović, Jovana; Soković, Marina; Barros, Lillian; Ferreira, Isabel C.F.R. (2020). Seed oil and seed oil byproducts of common purslane (Portulaca oleracea L.): A new insight to plant-based sources rich in omega-3 fatty acids. LWT - Food Science and Technology. ISSN 0023-6438. 123, p. 1-9en_EN
dc.identifier.doi10.1016/j.lwt.2020.109099en_EN
dc.identifier.issn0023-6438
dc.identifier.urihttp://hdl.handle.net/10198/22311
dc.language.isoeng
dc.peerreviewedyesen_EN
dc.subjectAntimicrobial propertiesen_EN
dc.subjectFatty acidsen_EN
dc.subjectLinoleic aciden_EN
dc.subjectOmega-3 fatty acidsen_EN
dc.subjectPortulaca oleraceaen_EN
dc.subjectPurslaneen_EN
dc.subjectSeed oilsen_EN
dc.subjectα-linolenic aciden_EN
dc.titleSeed oil and seed oil byproducts of common purslane (Portulaca oleracea L.): a new insight to plant-based sources rich in omega-3 fatty acidsen_EN
dc.typejournal article
dspace.entity.typePublication
person.familyNameFernandes
person.familyNameBarros
person.familyNameFerreira
person.givenNameÂngela
person.givenNameLillian
person.givenNameIsabel C.F.R.
person.identifier469085
person.identifier144781
person.identifier.ciencia-id2015-0434-AE7C
person.identifier.ciencia-id9616-35CB-D001
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0002-0157-9873
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0003-4910-4882
person.identifier.ridJ-3600-2013
person.identifier.ridE-8500-2013
person.identifier.scopus-author-id35236343600
person.identifier.scopus-author-id36868826600
rcaap.rightsopenAccessen_EN
rcaap.typearticleen_EN
relation.isAuthorOfPublication6233e657-3885-40a3-885e-0d51cf4dbaad
relation.isAuthorOfPublication3af07ffe-f914-48ba-a5d5-efcf70fdce01
relation.isAuthorOfPublicationbd0d1537-2e03-41fb-b27a-140af9c35db8
relation.isAuthorOfPublication.latestForDiscoverybd0d1537-2e03-41fb-b27a-140af9c35db8

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