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Antioxidant activities of eight Algerian plant extracts and two essential oils

2013Journal article Restricted access
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dc.contributor.authorBoulanouar, B.
dc.contributor.authorAbdelaziz, G.
dc.contributor.authorS, Azza
dc.contributor.authorGago, Custódia
dc.contributor.authorMiguel, Maria Graça
dc.date.accessioned2015-06-15T14:53:27Z
dc.date.available2015-06-15T14:53:27Z
dc.date.issued2013
dc.description.abstractTotal phenol, hydroxycinnamic acid derivatives, flavone/flavonol and flavanones/dihydroflavonol contents of hydro-alcoholic extracts, obtained by sonication, from the aerial parts of Artemisia campestris L., Anthemis arvensis L., Haloxylon scoparium Pomel, Juniperus phoenicea L., Arbutus unedo L., Cytisus monspessulanus L., Thymus algeriensis Boiss et Reut, Zizyphus lotus L (Desf.) collected in Djebel Amour (Sahara Atlas, Algeria) were quantified by spectrophotometric methods. The chemical composition of the essential oils obtained by hydrodistillation from Artemisia campestris L. and Juniperus phoenicea I aerial parts were also evaluated by gas chromatography (GC) and gas chromatography coupled to mass spectrometry (GC-MS). The antioxidant activity of the extracts and essential oils was assessed measuring the capacity for preventing lipid peroxidation using two lipidic substrates (egg yolk and liposomes), the capacity for scavenging DPPH, ABTS, superoxide anion radicals, hydroxyl radicals and peroxyl radicals. Anti-inflammatory activity was assessed by measuring the capacity for inhibiting lipoxygenase. Reducing power and chelating capacity were also assayed. The results showed different amounts of total phenols depending on the method used: A. campestris extract had the highest levels of total phenols when the measurement was made at lambda = 280 nm, whereas H. scoparium and A. unedo extracts showed the highest levels of total phenols with Folin-Ciocalteau. C. monspessulanus had the highest levels of flavones/flavonols and flavanones/dihydroflavonols. The essential oils of A. campestris and J. phoenicea were mainly constituted by alpha-pinene, beta-pinene and sabinene; and a-pinene, respectively. The methods used for assaying the capacity for preventing lipid peroxidation revealed to be inadequate for extracts due to the great interferences detected. The essential oils were more active than the generality of extracts for scavenging peroxyl radicals and for inhibiting lipoxygenase, whereas A. unedo extract was the most active for scavenging ABTS, DPPH, superoxide anion radicals and it also had the best reducing capacity. In a general way, the great majority of the antioxidant activities correlated well with the phenol content although such correlation was not so clear with the flavonoid content. (c) 2013 Elsevier B.V. All rights reserved.
dc.identifier.doihttps://dx.doi.org/10.1016/j.indcrop.2013.01.020
dc.identifier.issn0926-6690
dc.identifier.otherAUT: MGM00322;
dc.identifier.urihttp://hdl.handle.net/10400.1/6286
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier Science
dc.relation.isbasedonP-005-1Z0
dc.subjectDieta mediterrânicapt_PT
dc.titleAntioxidant activities of eight Algerian plant extracts and two essential oils
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage96
oaire.citation.startPage85
oaire.citation.titleIndustrial Crops and Products
oaire.citation.volume46
person.familyNameAAZZA
person.familyNameGago
person.familyNameMiguel
person.givenNameSmail
person.givenNameCustódia
person.givenNameMaria da Graça
person.identifier1426445
person.identifier.ciencia-idE416-77DF-6A97
person.identifier.ciencia-id6517-A4D9-05AD
person.identifier.ciencia-id6110-6FE7-DF28
person.identifier.orcid0000-0002-9339-8999
person.identifier.orcid0000-0001-9914-3615
person.identifier.orcid0000-0003-2507-4228
person.identifier.ridL-7630-2017
person.identifier.ridG-8496-2019
person.identifier.scopus-author-id51664684500
person.identifier.scopus-author-id37060829600
person.identifier.scopus-author-id35562054500
rcaap.rightsrestrictedAccess
rcaap.typearticle
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relation.isAuthorOfPublication52857c66-1fbd-4c23-ab8e-83bd6df478f5
relation.isAuthorOfPublication2507350f-9e60-4d4a-a096-53e58d93549c
relation.isAuthorOfPublication.latestForDiscoverya4c35de9-6854-4197-b8dc-541c90827314

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