Radikal bebas merupakan suatu molekul yang sangat reaktif dan tidak stabil, dapat mengakibatkan kerusakan protein, Deoxyribose Nucleic Acid (DNA), membran sel, serta memicu timbulnya penyakit degeneratif. Kerusakan-kerusakan tersebut dicegah dengan senyawa antioksidan alami maupun sintetik. Caulerpa sp. rumput laut hijau berpotensi sebagai sumber alami. umum diolah menjadi urap dalam keadaan se...

Seaweed is one of the prima donna marine biota which widely used as a natural antioxidant. Various species seaweed are found growing naturally in waters Kabung Island, West Kalimantan. This study aims to determine phytochemical content and antioxidant activity each genus Turbinaria, Hypnea Caulerpa from those collected Island. extraction uses maceration method with methanol remove active compou...

Caulerpin (1a), a bis-indole alkaloid from the marine algal Caulerpa sp., was synthesized in three reaction steps with an overall yield of 11%. The caulerpin analogues (1b-1g) were prepared using the same synthetic pathway with overall yields between 3% and 8%. The key reaction involved a radical oxidative aromatic substitution involving xanthate (3) and 3-formylindole compounds (4a-4g). All bi...