نتایج جستجو برای: caulerpa peltata
تعداد نتایج: 574 فیلتر نتایج به سال:
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...
With 50 species of the genus Nepenthes L. currently described from the Philippines, it is without doubt that the country, along with the islands of Sumatra (Indonesia) and Borneo (Indonesia, Malaysia, Brunei), should be considered the center of diversity of the genus. In this work, we describe two new species. One species, N. aenigma sp. nov., is from Ilocos Norte province on Luzon Island and h...
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