Dracaena draco L. fruit: phytochemical and antioxidant activity assessment

Silva, Branca M.; Santos, Rui P.; Mendes, Lídia S.; Pinho, P. Guedes de; Valentão, Patrícia; Andrade, Paula B.; Pereira, J.A.; Carvalho, Márcia

Publication

Dracaena draco L. fruit: phytochemical and antioxidant activity assessment

2011Journal article

dc.contributor.author	Silva, Branca M.
dc.contributor.author	Santos, Rui P.
dc.contributor.author	Mendes, Lídia S.
dc.contributor.author	Pinho, P. Guedes de
dc.contributor.author	Valentão, Patrícia
dc.contributor.author	Andrade, Paula B.
dc.contributor.author	Pereira, J.A.
dc.contributor.author	Carvalho, Márcia
dc.date.accessioned	2016-11-16T11:21:03Z
dc.date.available	2016-11-16T11:21:03Z
dc.date.issued	2011
dc.description.abstract	The present study reports for the first time the metabolite profile and antioxidant activity of aqueous extract obtained from Dracaena draco L. fruit. Volatiles profile was determined by HS-SPME/GC-IT-MS, with 9 compounds being identified, distributed by several distinct chemical classes: 1 alcohol, 3 aldehydes, 2 carotenoid derivatives, and 3 terpenic compounds. Aldehydes constituted the most abundant class in this exotic berry, representing 59% of total identified volatile compounds. Phenolics profile was determined by HPLC/DAD and 5 constituents were identified: 5-O-caffeoylquinic, 3,5-O-dicaffeoylquinic, ferulic and sinapic acids, and quercetin-3-O-rutinoside. The major phenolic compound is quercetin-3-O-rutinoside, comprising 42% of the total phenolic content. Organic acids composition was also characterized, by HPLC-UV, and oxalic, citric, L-ascorbic, malic, quinic and shikimic acids were determined. The most abundant is quinic acid, representing 39% of the total organic acid content. The antioxidant potential of this matrix was assessed by (i) reducing power of Fe3+/ferricyanide complex, (ii) scavenging effect on DPPH free radicals, and (iii) ability to inhibit the 2,2´-azobis(2-amidinopropane) dihydrochloride (AAPH)-induced oxidative hemolysis in human erythrocytes. Strawberry (Fragaria×ananassa Duch. cv. Camarosa) extract was used for comparison purposes. All assay models showed remarkable concentration dependent antioxidant activity, reducing power and radical scavenging efficiency for D. draco fruit, being invariably higher than that of strawberry extract. This is the first report showing that D. draco fruit is a promising new antioxidant agent.	pt_PT
dc.identifier.citation	Silva, B.M.; Santos, R.P.; Mendes, Lídia S.; Pinho, P. Guedes de; Valentão, P.; Andrade, P.B.; Pereira, J.A.; Carvalho, M. (2011). Dracaena draco L. fruit: Phytochemical and antioxidant activity assessment. Food Research International. ISSN 0963-9969. 44:7, p. 2182-2189	pt_PT
dc.identifier.doi	10.1016/j.foodres.2010.09.031	pt_PT
dc.identifier.issn	0963-9969
dc.identifier.uri	http://hdl.handle.net/10198/13498
dc.language.iso	eng	pt_PT
dc.peerreviewed	yes	pt_PT
dc.publisher	Elsevier	pt_PT
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	pt_PT
dc.subject	Dracaena draco fruit	pt_PT
dc.subject	Volatiles	pt_PT
dc.subject	Polyphenols	pt_PT
dc.subject	Organic acids	pt_PT
dc.subject	Hemolysis inhibition	pt_PT
dc.subject	Antioxidant activity	pt_PT
dc.title	Dracaena draco L. fruit: phytochemical and antioxidant activity assessment	pt_PT
dc.type	journal article
dspace.entity.type	Publication
oaire.citation.endPage	2189	pt_PT
oaire.citation.issue	7	pt_PT
oaire.citation.startPage	2182	pt_PT
oaire.citation.title	Food Research International	pt_PT
oaire.citation.volume	44	pt_PT
person.familyName	Pereira
person.givenName	José Alberto
person.identifier.ciencia-id	611F-80B2-A7C1
person.identifier.orcid	0000-0002-2260-0600
person.identifier.rid	L-6798-2014
person.identifier.scopus-author-id	57204366348
rcaap.rights	restrictedAccess	pt_PT
rcaap.type	article	pt_PT
relation.isAuthorOfPublication	7932162e-a2da-4913-b00d-17babbe51857
relation.isAuthorOfPublication.latestForDiscovery	7932162e-a2da-4913-b00d-17babbe51857