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Studies on chemical constituents and bioactivity of Rosa micrantha: an alternative antioxidants source for food, pharmaceutical, or cosmetic applications

dc.contributor.authorGuimarães, Rafaela
dc.contributor.authorBarros, Lillian
dc.contributor.authorCarvalho, Ana Maria
dc.contributor.authorFerreira, Isabel C.F.R.
dc.date.accessioned2010-10-07T16:05:37Z
dc.date.available2010-10-07T16:05:37Z
dc.date.issued2010
dc.description.abstractRose species have long been used for food and medicinal purposes. Rosa micrantha is one of the rose species that grow feral in the northeastern Portuguese region so-called Nordeste Transmontano. For the first time, chemical composition and bioactivity of their petals, fertilized flowers, unripe, ripening, and overripe hips were evaluated in order to valorize them as sources of important phytochemicals. Chemical characterization included determination of proteins, fats, ash, and carbohydrates, particularly sugars, by HPLC-RI, fatty acids by GC-FID, tocopherols by HPLCfluorescence, and phenolics, flavonoids, carotenoids, and ascorbic acid by spectrophotometric techniques. Bioactivity was evaluated through screening of antioxidant properties: radical scavenging effects, reducing power, and inhibition of lipid peroxidation. Ripening and overripe hips showed high nutritional value including proteins, carbohydrates, omega-3 and omega-6 fatty acids, energy, sugars, particularly the reducing sugars fructose and glucose, and ascorbic acid (>693 mg/100 g). Fertilized flowers and petals revealed the highest antioxidant activity (EC50 > 152 μg/mL) and phenolics, flavonoids, and tocopherols contents (>35 mg/100 g). Furthermore, petals, ripening, and overripe hips are important sources of carotenoid pigments (>64 mg/100 g). Because of the diversity and abundance of antioxidants found in this species, some food, cosmetic, and pharmaceutical applications could be explored.por
dc.identifier.citationGuimarães, Rafaela; Barros, Lillian; Carvalho, Ana Maria; Ferreira, Isabel C.F.R. (2010). Studies on chemical constituents and bioactivity of Rosa micrantha: an alternative antioxidants source for food, pharmaceutical, or cosmetic applications. Journal of Agricultural and Food Chemistry. ISSN 0021-8561. 58:10, p. 6277-6284por
dc.identifier.doi10.1021/jf101394w
dc.identifier.issn0021-8561
dc.identifier.urihttp://hdl.handle.net/10198/2645
dc.language.isoengpor
dc.publisherAmerican Chemical Societypor
dc.subjectRosa micranthapor
dc.subjectHipspor
dc.subjectFlowerspor
dc.subjectBioactive compoundspor
dc.subjectApplicationspor
dc.subjectPortuguese ethnobotanypor
dc.titleStudies on chemical constituents and bioactivity of Rosa micrantha: an alternative antioxidants source for food, pharmaceutical, or cosmetic applicationspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage6284por
oaire.citation.startPage6277por
oaire.citation.titleJournal of Agricultural and Food Chemistrypor
person.familyNameBarros
person.familyNameCarvalho
person.familyNameFerreira
person.givenNameLillian
person.givenNameAna Maria
person.givenNameIsabel C.F.R.
person.identifier469085
person.identifierID G-7399-2011
person.identifier144781
person.identifier.ciencia-id9616-35CB-D001
person.identifier.ciencia-idD31A-35AF-E2A9
person.identifier.ciencia-id9418-CF95-9919
person.identifier.orcid0000-0002-9050-5189
person.identifier.orcid0000-0001-5508-5935
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-id20336503900
person.identifier.scopus-author-id36868826600
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
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relation.isAuthorOfPublication977f5254-f7c5-4c91-873f-2700ecd4692f
relation.isAuthorOfPublicationbd0d1537-2e03-41fb-b27a-140af9c35db8
relation.isAuthorOfPublication.latestForDiscoverybd0d1537-2e03-41fb-b27a-140af9c35db8

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