[01] Asadatun Abdullah, Departement of Aquatic Product Technology, Faculty of Fisheries and Marine Sciences, Bogor Agricultural University, West Java, Indonesia. [02] Nurjanah Nurjanah, Departement of Aquatic Product Technology, Faculty of Fisheries and Marine Sciences, Bogor Agricultural University, West Java, Indonesia. [03] Taufik Hidayat, Departement of Aquatic Product Technology, Faculty of Fisheries and Marine Sciences, Bogor Agricultural University, West Java, Indonesia. [04] Achmad Gifari, Departement of Aquatic Product Technology, Faculty of Fisheries and Marine Sciences, Bogor Agricultural University, West Java, Indonesia.

Babylonia spirata, Meretrix meretrix, and Pholas dactylus are consumed shellfish that has not been optimally utilized, due the lack of information about nutritional content. This research was aimed to characterize the fatty acid in samples. Chemical compositions of samples were tested by thermogravimetric method, soxhlet method and kjeldahl method. The composition of fatty acid were tested by Gas Cromatography method. Moisture content, ash, fat, protein and carbohydrates consequtively B. spirata 78.44%, 1.20%, 0.33%, 17.38% and 2.65%; M. meretrix 79.98%, 1.37%, 0.11%, 9.39% and 9.02%; P. dactylus 83.78%, 1.19%, 0.11%, 11.37% and 3.55%. B. spirata, M. meretrix, and P. dactylus contains saturated fatty acid i.e lauric, myristic, palmitic and stearic. Monounsaturated fatty acid were oleic and palmitoleic, and polyunsaturated fatty acids were linoleic, linolenic, arachidonic, EPA and DHA. The highest content of lauric acid in the B. spirata was 0.55%. The highest content of myristic acid in P. dactylus was 1.05%, the highest of palmitic and stearic acid in P. dactylus were to 11.22% and 3.45% respectively. The highest content of oleic in P. dactylus was 3.81% and the highest palmitoleat acid found in M. meretrix i.e 2.5%. B. spirata has the highest linoleic acid i.e 0.95%. The highest content of linolenic acid found in P. dactylus i.e 0.16% and the highest arachidonic acid in B. spirata, was i.e 5.17%. The highest content of EPA and DHA found in M. meretrix were to 2.03% and 6.06% respectively.

Babylonia Spirata, Chemical Compositions, Fatty Acids, Meretrix meretrix, Pholas Dactylus

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