Sterols in Laurencia obtusa var. pyramidata (Hudson) J. V. Bory ex. J. Agardh
Kasım Cemal Guven, Burak Coban, Ekrem Sezik, Huseyin Erdugan
Turkish Marine Research Foundation (TUDAV), 34820, Beykoz, Istanbul, TURKEY
Faculty of Science and Letters, Chemistry Department, Bulent Ecevit University, 67100, Zonguldak, TURKEY
Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, Ankara, TURKEY
Department of Biology, Faculty of Science, 18 Mart University, Çanakkale, TURKEY
The sterol content of Laurencia obtusa var. pyramidata (Hudson) J. V. Bory ex. J. Agardh collected from Igneada, in the western part of the Black Sea coast of Turkey, was analyzed. They were cholest-5-en-3-ol (cholesterol), β-sitosterol, ergosta-5,7,22-trien-3-ol (ergosterol), 24-norcholesta-5,22(E)-dien-3β-ol, cholest-5,22(E)-dien-3β-ol, ergosta-5,24(28)-dien-3β-ol, 27- orergosta-5,22(E)-dien-3β-ol, ergosta-5, 22(E)-dien-3-ol, 23(S)-methylcholesterol, 23(S)-ethylcholesterol. The latter four were found in Laurencia species for the first time.
Keywords: Sterols, GC-MS, Laurencia pyramidalis, Black Sea