Hordenine amount in Phyllophora nervosa (D.C.Grev) (Marine Alga) collected from Şile (the Black Sea) and Dardanelle

In our earlier work, hordenine, an alkaloid was first time extracted from Phyllophora nervosa collected from Şile in 1969. In this work, this alkaloid was extracted in the same alga collected from Şile and Dardanelle and the amount of hordenine was determined by GC/MS analysis. The hordenine content was 39.66 ?g/g for Şile and 1.15 mg/g for Dardanelle sample.