karakterisasi kandungan kimia gonad bulu babu (Diadema sp) dari perairan pulau derawan
Sea urchins are a group of animals that are often found in coastal and marine areas of Indonesia and even throughout the world. Sea urchins are known as food ingredients by some Indonesian people and foreign people. The purpose of this study was to analyze the chemical content (proximate, amino acids, fatty acids, minerals and metals) of the gonads of sea urchins (Diadema sp.) from Derawan island. The research method is divided into 5 tests including analysis of chemical composition, amino acids, fatty acids, minerals and metals using quantitative descriptive analysis. The results of the study of sea urchins (Diadema sp.) had a water content of 74%, ash 1.37%, fat 2.19%, protein 13.13% and carbohydrates 9.32%. The amino acids found in sea urchins consisted of 15 types, namely 9 essential amino acids and 6 non-essential amino acids, the total amino acids of Diadema sp was 34.87%. Fatty acids contained in the gonads of sea urchins Diadema sp by 38.37% and brown sea urchins by 46.38% consisting of 29 types of fatty acids (11 Saturated Fatty Acid, 8 Monounsaturated Fatty Acid, 10 Polyunsaturated Fatty Acid). The total level of omega-3 is 4.18% and the total level of omega-6 is 2.28%. mineral content found in sea urchins gonads consisting of calcium, iron, selenium and zinc. While the metal consisting of mercury.