AbstrakKalsium dan fosfor merupakan unsur yang penting yang dibutuhkan untuk perkembangan dan pertumbuhan. Tulang bandeng diketahui memiliki kandungan kalsium dan fosfor yang tinggi. Tujuan dari penelitian ini adalah mengetahui proksimat dan kandungan kalsium dan fosfor pada crackers yang difortifikasi dengan tepung tulang ikan bandeng. Fortifikasi crackers tepung tulang ikan bandeng menggunakan 4 perlakuan yakni presto, kukus, segar dan kontrol. Analisis proksimat meliputi kadar air, kadar abu, lemak, protein dan karbohidrat menggunakan metode AOAC (2005) dan analisis kandungan fosfor dan kalsium menggunakan metode AAS. Kandungan kalsium dan fosfor crakers tepung tulang masing-masing berkisar 88916-119730 mg/kg dan 2,2 mg/kg - 7,4 mg/kg. Nilai proksimat meliputi kadar air 12,26 – 14,42%, kadar abu 16,12 – 21,67%, protein 0,626 – 7,304%, lemak 4,0 – 4,8% dan karbohidrat 37,64 – 41,88%. Fortifikasi tepung tulang bandeng meningkatkan nilai proksimat, kalsium, dan fosfor pada crackersAbstractCalcium and phosphorus are important elements needed for development and growth. Milkfish is known to have high calcium and phosphorus content. The aim of study was to determine the proximate, and the content of calcium and phosphorus in crackers fortification with milkfish bone flour. Cracker fortification with milkfish bone flour consists of four treatments were presto, steamed, fresh and control. Proximate analysis includes water, ash, fat, protein and carbohydrates using the method (AOAC 2005) and analysis of phosphorus and calcium content using the AAS method. Calcium and phosphorus content bone flour crackers range respectively 88916-119730 mg/kg and 2.2 mg/kg – 7.4 mg/kg. Moisture content 12.26 – 14.42%, ash content 16.12 – 21.67%, protein 0.626- 7.304%, fat 4.0 – 4.8% and carbohydrates 37.64 – 41.88%. Fortification of milkfish flour increases the proximate, calcium, and phosphorus value in crackers.

Tarakan city has the potential of marine biological resources that are very abundant such as fish, shrimp, seaweed and even jellyfish. Jellyfish is one of the aquatic commodities found in almost all marine waters of Indonesia. Jellyfish has the potential as a source of nutrient-rich foods that give high economic value. This is due to the lack of information about the nutritional content of jellyfish. The purpose of this study is to determine the proximate content of fresh and dry Rhizostoma Pulmo jellyfish. This research method using purposive sampling which followed sampling of jellyfish (R. pulmo) in Amal Lama Beach, sample preparation, calculation of yield and proximate analysis. Protein testing using the Semi Kjeldahl method, lemk testing using the Soxhlet method, testing water content using the gravimetric method, measuring carbohydrate using the by different method. Based on this study Proximat content found in fresh and dried jellyfish consist of 96,2% water content, 1% ash content, 34,5% protein content, 12,5% fat content, 47,9% carbohydrate content. Proximate levels dry jellyfish  58,78% water content is, 11 % ash content, 46,3 % protein content, 1.5% fat content and 39,9% carbohydrate content

Tarakan City has the potential of marine fisheries resources that are quite large from capture fisheries. However, the by-catch has low economic value so that the diversification of catches in the food sector is not optimal. One of the by-catch with low utilization is the tarpon fish (Megalops cyprinoides). This activity aims to provide training to LiZY UMKM about the diversification product of tarpon fish. The method used in this activity is training with participatory learning techniques and mentoring. The training and mentoring process includes: selection of raw materials for fish cake products, formulating and diversifying processed fishery products such as fish ball, chikuwa, ekado, fish cake, and fish dumplings and providing information related to tarpon fish nutrition. The results of this activities in the form of training and assistance in processing tarpon fish into fish cakes include fish ball, chikuwa, ekado, odeng, and fish dumplin. The conclusion from this activity is that participants can understand the importance of creating new innovations in food processing so that can seize and win the culinary business competition and have skills in processing current fish preparations based on by-catch Keywords: By-Catch; Fish Cake; North Kalimantan.   ABSTRAK Kota Tarakan memiliki potensi sumberdaya perikanan laut yang cukup besar dari hasil perikanan tangkap.  Namun demikian, hasil tangkapan sampingan (by-catch) memiliki nilai ekonomis rendah sehingga minim diversifikasi hasil tangkapan dalam bidang pangan. Salah satu hasil tangkapan sampingan dan minim pemanfaatannya adalah ikan bulan-bulan (Megalops cyprinoides). Kegiatan ini bertujuan memberikan pelatihan diversifikasi olahan ikan bulan-bulan kepada UMKM LiZY. Metode yang digunakan dalam kegiatan ini adalah pelatihan dengan teknik pembelajaran partisipatif dan pendampingan. Proses pelatihan dan pendampingan meliputi: pemilihan bahan baku produk fish cake, menyusun formulasi dan diversifikasi olahan hasil perikanan seperti fish ball, chikuwa, ekado, odeng, dan fish dumpling dan memberikan informasi terkait gizi ikan bulan-bulan. Hasil kegiatan PKM berupa pelatihan dan pendampingan dalam mengolah ikan bulan-bulan menjadi fish cake antara lain: lain fish ball, chikuwa, ekado, odeng, dan fish dumpling. Kesimpulan dari kegiatan ini adalah peserta dapat memahami pentingnya menciptakan inovasi baru dalam mengolah makanan agar dapat merebut dan memenangkan persaingan bisnis kuliner dan memiliki keterampilan dalam mengolah olahan ikan yang kekinian berbasis hasil tangkapan sampingan. Kata kunci: Fish Cake; Kalimantan Utara; Tangkapan Sampingan