CHARACTERISTICS OF LIPID BIOMARKERS (N-ALKANES, FATTY ACIDS, STEROLS, N-ALKANOLS AND ISOPRENOID) IN ESTUARINE SEDIMENTS OF MUARA ANGKE JAKARTA BAY AND CILINTANG-UJUNG KULON

<p><strong><em>ABSTRACT</em></strong></p> <p><em>Lipid</em><em> </em><em>biomarkers as specific organic compounds can be used to evaluate the </em><em>possible </em><em>contribution of organic carbon from different sources or to</em><em> </em><em>trace the biological origin of molecules. The purpose of this</em><em> </em><em>research was to assess the contribution of sedimentary organic of origin based on the characteristics of lipid biomarkers in the Muara Angke Estuary-Jakarta Bay and Cilintang-Ujung Kulon. Single sediment sample were</em><em> </em><em>collected at the 10 cm deep from the top sediment. Those samples were extracted by soxhlet apparatus and fractioned prior to GC-MS analysis. All of those sediment showed different characteristics of biomarker (n-alkanes, fatty acid, sterol,n-alkanols and isoprenoid). </em><em>They</em><em> indicated the different of contribution of organic material input</em><em>s</em><em> influenced by the activity of the upland and surrounding the estuary. </em></p> <p><em> </em></p> <strong><em>Keywords</em></strong>: <em>estuary sediment, GC-MS, lipids biomarkers