Phenolic and antioxidant potential of olive oil mill wastes

Lafka, T-I; Lazou, AE; Sinanoglou, VJ; Lazos, ES

dc.contributor.author	Lafka, T-I	en
dc.contributor.author	Lazou, AE	en
dc.contributor.author	Sinanoglou, VJ	en
dc.contributor.author	Lazos, ES	en
dc.date.accessioned	2014-03-01T01:36:38Z
dc.date.available	2014-03-01T01:36:38Z
dc.date.issued	2011	en
dc.identifier.issn	0308-8146	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21374
dc.subject	Antioxidants	en
dc.subject	Extraction time	en
dc.subject	Liquid solvent extraction	en
dc.subject	Olive oil mill waste	en
dc.subject	PH	en
dc.subject	Phenolic compounds	en
dc.subject	Supercritical fluid extraction	en
dc.subject.classification	Chemistry, Applied	en
dc.subject.classification	Food Science & Technology	en
dc.subject.classification	Nutrition & Dietetics	en
dc.subject.other	Antioxidants	en
dc.subject.other	Extraction time	en
dc.subject.other	Olive oil	en
dc.subject.other	Phenolic compounds	en
dc.subject.other	Super-critical	en
dc.subject.other	Carbon dioxide	en
dc.subject.other	Effluent treatment	en
dc.subject.other	Ethanol	en
dc.subject.other	Liquids	en
dc.subject.other	Organic acids	en
dc.subject.other	Organic solvents	en
dc.subject.other	Phenols	en
dc.subject.other	Plants (botany)	en
dc.subject.other	Supercritical fluid extraction	en
dc.subject.other	Supercritical fluids	en
dc.subject.other	Vegetable oils	en
dc.subject.other	Extraction	en
dc.subject.other	1,1 diphenyl 2 picrylhydrazyl	en
dc.subject.other	alpha tocopherol	en
dc.subject.other	ascorbyl palmitate	en
dc.subject.other	carbon dioxide	en
dc.subject.other	flavonoid	en
dc.subject.other	hydroxytyrosol	en
dc.subject.other	olive oil	en
dc.subject.other	phenol derivative	en
dc.subject.other	solvent	en
dc.subject.other	sunflower oil	en
dc.subject.other	antioxidant activity	en
dc.subject.other	article	en
dc.subject.other	controlled study	en
dc.subject.other	drug screening	en
dc.subject.other	high performance liquid chromatography	en
dc.subject.other	industrial waste	en
dc.subject.other	liquid liquid extraction	en
dc.subject.other	pH	en
dc.subject.other	supercritical fluid extraction	en
dc.subject.other	Helianthus	en
dc.title	Phenolic and antioxidant potential of olive oil mill wastes	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.foodchem.2010.08.041	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.foodchem.2010.08.041	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	Olive oil mill waste was subjected to conventional liquid solvent extraction and supercritical fluid extraction using different solvents and carbon dioxide, respectively. The optimum solvent extraction conditions of phenols were 180 min using ethanol, at a solvent to sample ratio 5:1 v/w, and at pH 2. Solvent and SFE extracts were tested for their antioxidant activity by the DPPH radical scavenging method and by determination of peroxide value on virgin olive oil and sunflower oil. The ethanol extract exhibited the highest antiradical activity, and no correlation was found between antiradical activity and phenol content. The SFE extract exerted good antioxidant capacity although its phenolic yield was not quite high. Moreover, the ethanol extract appeared to be a stronger antioxidant than BHT, ascorbyl palmitate and vitamin E by the Rancimat method on sunflower oil. HPLC analysis of the extracts showed that the predominant phenolic compound was hydroxytyrosol. Various phenolic acids and flavonoids were also identified. (C) 2010 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Food Chemistry	en
dc.identifier.doi	10.1016/j.foodchem.2010.08.041	en
dc.identifier.isi	ISI:000284681600013	en
dc.identifier.volume	125	en
dc.identifier.issue	1	en
dc.identifier.spage	92	en
dc.identifier.epage	98	en