Editor-in-Chief Hatice Kübra Elçioğlu Vice Editors Levent Kabasakal Esra Tatar Online ISSN 2630-6344 Publisher Marmara University Frequency Bimonthly (Six issues / year) Abbreviation J.Res.Pharm. Former Name Marmara Pharmaceutical Journal
Marmara Pharmaceutical Journal 1989 , Vol 5 , Issue 2
Gas chromatographic analysis on Turkish Origanum oils
Ulvi Avciata,Basri Demiryürek
Although in commerce frequently confused with, or mislabelled as thyme oil, origanum oils is in reality an entirely different plant species and in different regions. It has different chemical composition, containing 60 to 70 per cent of phenols, which consist mainly of carvacrol. Carvacrol remains liquid at room temperature but thymol crystalizes.

The Spanish oil, most important of all commercial thyme oils. It has 62 to 71 % phenol content. Also, Turkish oil, Gaziantep region 71% and Bolu region has 68.5% phenol contents. Keywords :

Marmara University