The increasing production of cuttlefish has been associated with the increasing of by-product waste particularly cuttlebone. Cuttlebone is known to contain an inorganic element in form of calcium carbonate<br />(CaCO3) which can be utilized as a source of calcium oxide (CaO) for hydroxyapatite synthesis. This study was aimed to determine the physicochemical characteristics of the cuttlebone and the optimum calcination temperature for CaO extraction and hydroxyapatite synthesis. This study was divided into three steps. Firstly, analysis of the cuttlebone physicochemical properties; secondly, extraction and characterization of the CaO with different calcination temperature (500°C, 600°C, 700°C for 6 hours); and thirdly, hydroxyapatite synthesis using a combination of hydrothermal method at 200°C 6 hours and different calcination treatments (800°C, 900°C, 1,000°C for 1 hour). The results showed that the cuttlebone contained moisture 3.54±0.11%,<br />lipid 0.32±0.19%, protein 4.78±0.23%, carbohydrate 5.29±0.02%, and ash 89.61±0.26. The main element of the ash was CaCO3 aragonite characterized by the high absorption at wavelengths of 1,795; 1,507;<br />1,083; 871; 713 and 700 cm-1. The calcination treatment of 700°C produced the highest amount of CaO. The hydroxyapatite produced with a combination of hydrothermal and calcination temperature 1,000°C<br />had calcium phosphate ratio (Ca/P) 1.66, crystalline level 90.10%, amorphous level 9.90% and particles morphology of rod-shaped.
Kabupaten Sumba Timur merupakan salah satu daerah dengan sumber daya perikanan yang melimpah, namun saat ini belum terdapat data jumlah konsumsi dan asupan gizi ikan masyarakat pesisir. Tujuan penelitian adalah mengetahui profil konsumsi ikan, angka konsumsi ikan, dan status asupan gizi ikan masyarakat pesisir di Kabupaten Sumba Timur. Penelitian ini dilakukan pada bulan Mei—Juni 2020, di sepuluh desa dan dua kelurahan pesisir. Jumlah responden yang dilibatkan adalah 347 orang, yang dipilih menggunakan metode slovin dengan kriteria usia responden 18—60 tahun dan memiliki preferensi tentang ikan. Pengambilan data profil konsumsi ikan dilakukan dengan wawancara, sedangkan angka konsumsi ikan dan status asupan gizi ikan harian menggunakan instrumen food frequency questionnaires. Data hasil penelitian dianalisis deskriptif dan analisis regresi linier tunggal untuk mengetahui hubungan karakteristik keluarga terhadap jumlah konsumsi ikan (kg/kapita/bulan). Hasil penelitian menunjukkan mayoritas masyarakat pesisir berpendidikan Sekolah Menengah Pertama (SMP) dan bermatapencaharian nelayan. Masyarakat pesisir sebanyak 56,80% mengkonsumsi ikan 2—5 kg/kapita/bulan dan 43,20% mengkonsumsi ikan > 5 kg/kapita/bulan. Angka konsumsi ikan masyarakat pesisir berdasarkan usia dan jenis kelamin adalah 45,62—48,00 kg/kapita/tahun atau setara dengan 118,37—133,45 gram/kapita/hari. Angka konsumsi ini masih rendah dibandingkan target konsumsi ikan nasional tahun 2020, yakni 56,39 kg/kapita/tahun. Kontribusi angka konsumsi ikan terhadap rata-rata status asupan gizi ikan masyarakat pesisir adalah protein 7,53 (gram/kapita/hari), lemak 1,08 (gram/kapita/hari), dan energi 107 (kkal/kapita/hari). Khusus pada status kecukupan protein ikan harian belum memenuhi standar asupan gizi hewani ikan, yakni minimal jumlah asupannya harus mencapai 18,53 gram/kapita/hari. Oleh sebab itu, perlu dilakukan strategi untuk membudayakan konsumsi ikan pada masyarakat melalui sosialisasi, edukasi, dan diversifikasi produk perikanan.Title: Fish Consumption Analysis of East Sumba Coastal CommunitiesEast Sumba Regency is one of the areas with abundant fishery resources. Currently, there is no data on fish consumption and nutritional intake in coastal communities. The purpose of the study was to find the profile of fish consumption, the number of fish consumption, and the nutritional status of fish in coastal communities in East Sumba Regency. This research was conducted in May—June 2020 in ten and two coastal villages. The number of respondents involved was 347. The number of respondents was determined using the Slovin approach with the criteria of the respondent’s age being 18—60 years and having a preference for fish. Data collection on fish consumption profiles was conducted by interview, while fish consumption figures and daily fish nutritional status used the food frequency questionnaire instrument. The research data were analyzed descriptive and single linear regression analysis to decide the relationship of family characteristics to fish consumption (kg/capita/month). The study results show that most coastal communities have a junior high school education, earning a livelihood from fishermen. Coastal communities 56.80% consume fish 2—5 kg/capita/month and 43.20% consume fish >5 kg/capita/month. The fish consumption rate of coastal communities based on age and gender is 45.62—48.00 kg/capita/year or equal to 118.37—133.45 grams/capita/day. This consumption figure is still low compared to the national fish consumption target in 2020, which is 56.39 kg/capita/year. The contribution of fish consumption figures to the average nutritional status of fish in coastal communities is protein 7.53 (grams/capita/day), fat 1.08 (grams/capita/day), and energy 107 (kcal/capita/day). In particular, the daily fish protein adequacy status does not meet the standard of fish animal nutrition intake, namely the smallest amount of intake must reach 18.53 grams/capita/day. Therefore, a strategy is needed to cultivate fish consumption in the community through socialization, education, and diversification of fisheries products.
Processing of cuttlefish in Indonesia for export or household needs only uses the body, including the meat to the head, on the other hand, the cuttlebone is categorized as a byproduct of processing waste. Therefore, estimates of cuttlebone resulting from this process are very abundant. This study aims to examine the physicochemical of cuttlebone (Sepia sp.) and their utilization. The results showed that morphologically, the cuttlebone was composed of 40% dorsal structure and 60% lamellar structure, and the dorsal structure consisted of phragmacone and proostracum. The cuttlebone is composed of a septum and pillars. Proximate content (dry basis) and heavy metal content of cuttlebone, namely 89,61% ash content, 0,35% lipid, 4,78% protein and 5,26% carbohydrates, heavy metal content of cadmium 0,6 mg/kg while lead and negative mercury. Macro mineral content (calcium, magnesium, potassium, phosphorus) is 40,18%, micro minerals (manganese, iron, zinc, sodium) 0,73%. The absorption of cuttlebone functional groups identified elements of CaCO3 aragonite, β chitin in lamellar and a chitin in the dorsal structure.
Penelitian ini bertujuan untuk mengetahui pengaruh pra kondisi ikan tembang (Sardinella fimbriata) (kering, kukus, segar) dan konsentrasi asap cair 0,3%, 0,5%, 0,7%, 0,9%, 1,0% terhadap karakteristik kimia dan tingkat penerimaan produk ikan tembang (Sardinella fimbriata)asap cair. Penelitian ini dirancang menggunakan Rancangan Acak Kelompok Faktorial (RAKF) dan dianalisis menggunakan ragam ANOVA dua arah. Hasil penelitian menunjukkan kombinasi perlakuan pra kondisi (kering, kukus, segar) dan konsentrasi asap cair yang berbeda menunjukkan tidak berpengaruh nyata terhadap kadar air, akan tetapi memiliki pengaruh terhadap kadar fenol, pH, warna, rasa, aroma dan tekstur produk ikan tembang asap cair. Penerimaan panelis lebih menyukai produk ikan tembang asap cair yang diperoleh dari kombinasi perlakuan pra kondisi kering pada konsentrasi asap cair 1,0%. Karakteristik produk tersebut yakni memiliki tekstur yang kompak/padat, memiliki aroma keasap-asapan yang kuat serta warna kecoklatan yang mengkilap.
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