The in vitro antioxidant and antimicrobial activities of the essential oil and various extracts of Origanum syriacum L var bevanii

dc.contributor.author	Tepe, B	en
dc.contributor.author	Daferera, D	en
dc.contributor.author	Sokmen, M	en
dc.contributor.author	Polissiou, M	en
dc.contributor.author	Sokmen, A	en
dc.date.accessioned	2014-06-06T06:46:09Z
dc.date.available	2014-06-06T06:46:09Z
dc.date.issued	2004	en
dc.identifier.issn	00225142	en
dc.identifier.uri	http://dx.doi.org/10.1002/jsfa.1758	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/2814
dc.subject	β-carotene/linoleic acid	en
dc.subject	Antimicrobial activity	en
dc.subject	Antioxidant activity	en
dc.subject	Carvacrol	en
dc.subject	DPPH	en
dc.subject	Essential oil	en
dc.subject	Origanum syriacum	en
dc.subject	Thymol	en
dc.subject.other	Origanum	en
dc.subject.other	Origanum vulgare	en
dc.subject.other	Viscum	en
dc.subject.other	Viscum album	en
dc.title	The in vitro antioxidant and antimicrobial activities of the essential oil and various extracts of Origanum syriacum L var bevanii	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/jsfa.1758	en
heal.publicationDate	2004	en
heal.abstract	The present work examines the in vitro antioxidant and antimicrobial properties of the essential oil and various extracts from the herbal parts of Origanum syriacum L var bevanii. Polar subfractions of methanol extracts from both deodorised and non-deodorised materials showed the highest DPPH (2,2-diphenyl-1-picrylhydrazyl) radical-scavenging activity, with IC 50 values of 21.40 and 26.98 μgml-1 respectively, whereas the IC50 of the essential oil was 134.00 μg ml -1. The antioxidant potential of the extracts appeared to be closely related to the presence of polar phenolics. However, the inhibitive effect on linoleic acid oxidation might be promoted by the presence of non-polar phenolics, as both hexane and dichloromethane extracts showed high antioxidant activities. The antimicrobial activity of the essential oil was superior to those of the other extracts. Nineteen compounds representing 962 g kg -1 of the essential oil were identified; carvacrol (669 g kg -1) was the main component. Overall, the results suggest that the essential oil and extracts from the herbal parts of O syriacum could be used as natural preservative ingredients in the food industry. © 2004 Society of Chemical Industry.	en
heal.journalName	Journal of the Science of Food and Agriculture	en
dc.identifier.issue	11	en
dc.identifier.volume	84	en
dc.identifier.doi	10.1002/jsfa.1758	en
dc.identifier.spage	1389	en
dc.identifier.epage	1396	en