Comparative studies on the antioxidant activity of aqueous extracts of olive oils and seed oils using chemiluminescence

Papadopoulos, K; Triantis, T; Yannakopoulou, E; Nikokavoura, A; Dimotikali, D

dc.contributor.author	Papadopoulos, K	en
dc.contributor.author	Triantis, T	en
dc.contributor.author	Yannakopoulou, E	en
dc.contributor.author	Nikokavoura, A	en
dc.contributor.author	Dimotikali, D	en
dc.date.accessioned	2014-03-01T01:18:46Z
dc.date.available	2014-03-01T01:18:46Z
dc.date.issued	2003	en
dc.identifier.issn	0003-2670	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15190
dc.subject	chemiluminescence	en
dc.subject	olive oils	en
dc.subject	antioxidant activity	en
dc.subject	phenols	en
dc.subject.classification	Chemistry, Analytical	en
dc.subject.other	RADICAL ABSORBENCY CAPACITY	en
dc.subject.other	PHENOLIC-COMPOUNDS	en
dc.subject.other	NATURAL ANTIOXIDANTS	en
dc.subject.other	OXIDATIVE STABILITY	en
dc.subject.other	ALPHA-TOCOPHEROL	en
dc.subject.other	ASSAY	en
dc.subject.other	POLYPHENOLS	en
dc.subject.other	SEPARATION	en
dc.subject.other	SYSTEM	en
dc.subject.other	HPLC	en
dc.title	Comparative studies on the antioxidant activity of aqueous extracts of olive oils and seed oils using chemiluminescence	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0003-2670(03)01013-4	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0003-2670(03)01013-4	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	A sensitive and simple procedure is described for measuring the antioxidant activity (AA) of olive oil and seed oil aqueous extracts using the chemiluminescence of N,N'-dimethyl-9,9'-biacridinium dinitrate (lucigenin). It was found that olive oil aqueous extracts showed 2-10 times higher AA than seed oils. This impressive difference is attributed to the higher content of phenolic compounds present in olive oils. Spectrophotometric and fluorimetric measurements affirmed this hypothesis. As shown in this paper, the reported method could also be used for the quantitation of total phenols in aqueous oil extracts. It was found that commercial and non-commercial Greek olive oil aqueous extracts contain 55.3-125.9 mg caffeic acid equivalents per kilogram, while seed oils, only 0.6-3.2 mg kg(-1). (C) 2003 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	ANALYTICA CHIMICA ACTA	en
dc.identifier.doi	10.1016/S0003-2670(03)01013-4	en
dc.identifier.isi	ISI:000185777200005	en
dc.identifier.volume	494	en
dc.identifier.issue	1-2	en
dc.identifier.spage	41	en
dc.identifier.epage	47	en