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Kandungan Logam Berat Merkuri pada Ikan Tuna (Yellowfin dan Bigeye) dan Tuna-Like (Swordfish) Hasil Tangkapan dari Samudera Hindia dan Samudera Pasifik Handayani, Tri; Maarif, Mohamad Syamsul; Riani, Etty; Djazuli, Nazori
Jurnal Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 14, No 1 (2019): Juni 2019
Publisher : Balai Besar Riset Pengolahan Produk dan Bioteknologi Kelautan dan Perikanan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jpbkp.v14i1.572

Abstract

AbstrakKomoditi tuna dan tuna-like merupakan hasil perikanan yang memiliki nilai ekonomis bagi Indonesia. Namun, logam berat dapat terakumulasi di biota ini karena posisinya sebagai top predator.  Penelitian ini menganalisis 895 data sekunder hasil pengujian merkuri yellowfin tuna (Thunnus albacares), bigeye tuna (Thunnus obesus) dan swordfish (Xiphias gladius), yang merupakan data official control oleh Badan Karantina, Pengendalian Mutu dan Keamanan Hasil Perikanan (BKIPM). Tujuan penelitian adalah untuk menganalisis kandungan merkuri yellowfin tuna, bigeye tuna dan swordfish, serta korelasinya dengan berat ikan dan menganalisis data kontaminan merkuri yellowfin tuna, bigeye tuna dan swordfish terkait pencemaran habitat perairan asal bahan baku di Samudera Hindia dan Samudera Pasifik. Metode analisis menggunakan regresi linier dan analisis t-test. Pengujian merkuri menggunakan Atomic Absorption Spectrophotometric (AAS). Hasil analisis menunjukkan bahwa kandungan merkuri sangat bervariasi antar jenis, berat dan asal perairan. Dua jenis tuna dari kedua perairan mengandung merkuri <1,0 mg/kg, kandungan merkuri yellowfin tuna berkisar antara 0,06±0,06 mg/kg hingga 0,33±0,18 mg/kg, sedangkan bigeye tuna antara 0,05±0,02 mg/kg hingga 0,33±0,14 mg/kg. Berat kedua ikan tidak berkorelasi terhadap kandungan merkuri, namun pada bigeye tuna terdapat perbedaan konsentrasi merkuri yang signifikan antara kelompok berat 1-10 kg/ekor dengan ukuran yang lebih besar (>100 kg/ekor). Sebaliknya pada swordfish, kandungan merkuri meningkat dengan penambahan berat ikan, yang berkisar antara 0,08±0,01 mg/kg hingga 1,61±0,02 mg/kg. Terdapat 34% (>50 kg) swordfish dari Samudera Hindia yang kandungan merkuri nya melebihi batas 1,0 mg/kg. Kandungan merkuri tuna dan tuna-like hasil tangkapan di Samudera Hindia lebih tinggi dibandingkan Samudera Pasifik dan berbeda nyata, sehingga dapat mengindikasikan Samudera Hindia lebih tercemar merkuri. Study on Mercury Concentrations in Tuna (Yellowfin and Bigeye) and Tuna-like (swordfish) Caught from Indian and Pacific OceansAbstractTuna and tuna-like species are considered as highly economic fish species for Indonesia. However, as a high-tropic level predatory species, tuna may accumulate heavy metal contaminants. This study analyzed 895 secondary data of mercury levels in tuna and tuna-like species, based on official control conducted by Badan Karantina Ikan, Pengendalian Mutu dan Keamanan Hasil Perikanan (BKIPM). The objectives of this study were to analyze correlations between mercury contents in yellowfin, bigeye and swordfish with fish weight and fish habitats (Indian and Pacific Oceans). Mercury was analyzed using Atomic Absorption Spectrophotometric (AAS). The data was analyzed based on linear regression and t-test. The result found that mercury concentrations varied significantly among species, weight and fish habitats. Two tuna species from two habitats, have mercury concentration of <1.0 mg/kg. Mercury in yellowfin ranged from 0.06±0.06 mg/kg to 0.33±0.18 mg/kg, while in bigeye it ranged from 0.05±0.02 mg/kg to 0.33±0.14 mg/kg. For yellowfin and bigeye, mercury concentrations were weakly associated with fish weight, except in bigeye, there was a significant difference of mercury concentration between the fish at the group of 1-10 kg with the larger size (>100 kg). In contrast, a strong relationship between mercury content with fish weight was observed in swordfish, where mercury concentration increased with increasing fish weight. It ranged from 0.08±0.01 mg/kg to 1.60±0.02 mg/kg, and 34% of swordfish caught from the Indian Ocean (>50 kg of weight) have mercury content that exceeded 1.0 mg/kg. Mercury concentration of tuna and tuna-like caught from the Indian Ocean were significantly higher than those caught from the Pacific Ocean, which could indicate that the Indian Ocean was more polluted interm of mercury than the Pacific Ocean. 
FINANCIAL ANALYSIS OF SURIMI PROCESSING BY MODERN AND SEMI-MODERN SCALE Djazuli, Nazori; Wahyuni, Mita; Monintja, Daniel; Purbayanto, Ari
Jurnal Pengolahan Hasil Perikanan Indonesia Vol. 12 No. 2 (2009): Jurnal Pengolahan Hasil Perikanan Indonesia
Publisher : Department of Aquatic Product Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (66.893 KB) | DOI: 10.17844/jphpi.v12i2.853

Abstract

Development of surimi processing in the industry regions which have huge potential of rawmaterial, can be done through aiming at the business feasibility existed either by modern surimi processingbusiness as weel as semi modern. In general, theaim of this research is to analyze the feasibility business ofsurimi processing either by modern surimi processing business or semi modern. Sampling of surimiprocessing business for modern surimi processing was located in Pekalongan, Central Java Province andsemi modern surimi processing was located in Pulau Moro, Riau Island Province. Data collection was doneby questionnaire and interview to stakeholders of surimi processing industry. Method of analysis wascarried out by using criteria of financial feasibility i.e. Payback Period (PB), Net Present Value (NPV),Internal Rate of Return (IRR), Profitable Index (PI), Net B/C, and Break Event Point (BEP). Result ofresearch showed that surimi processing business either by modern surimi processing business or semimodern is feasible shown from (1) Value of NPV for PT. A is Rp.22,647,400,670 and PT.B isRp.29,866,797,485 for 10 years, (2) Value of IRR at surimi business in PT.A is 49.28% and PT.B is56.11%, (3) PT. A needs 2 years 1 month and 6 days to return the investment that has been invested insurimi processing, meanwhile PT.B needs 1 year 10 months and 6 days, (4) Value of profitability indexPT.A is 2.43 and PT.B is 2.78, and (5) figure of Net B/C Ratio PT.A is 1.89, and PT.B has figure of NetB/C Ratio 1.58.Keywords : financial feasibility, surimi product
MODIFICATION TECHNOLOGY OF SURIMI PROCESSING THROUGH UTILIZATION “BY-CATCH” OF SHRIMP NET IN ARAFURA SEA Djazuli, Nazori; Wahyuni, Mita; Monintja, Daniel; Purbayanto, Ari
Jurnal Pengolahan Hasil Perikanan Indonesia Vol. 12 No. 1 (2009): Jurnal Pengolahan Hasil Perikanan Indonesia
Publisher : Department of Aquatic Product Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (83.705 KB) | DOI: 10.17844/jphpi.v12i1.885

Abstract

Utilization of shrimp net in Arafura Sea produced by?catch with average ratio 1:12 between main capture and by?catch. The low economic value, unavailability of suitable processing technology, and constraint in management by?catch lead to discharge the majority of by-catch to the sea. The aims of this research were to analyze the availibility of raw material of surimi from by?catch of shrimp net in Arafura Sea and modified processing technology from mixture of fish species by prepared minced fish in vessel and surimi processing of mixture fish  species in land and followed by quality assessment of surimi. Result of the research showed that number of 502 vessels operated ? mostly by?catch ? per vessel unit per year was 795 metric ton, therefore the estimation of volume of by?catch per year in Arafura was 399,000 metric ton. Fish species of by-catch that suitable processed into surimi was 32% or 128 metric  ton/year or equivalent to 41,000 metric ton of surimi per year. Result of cut off technology analysis showed that frozen minced fish could be stored for 5 weeks at ?18oC which constantly produced good surimi (folding test: A, teeth cutting test:7 and gel strength > 500 g/cm2). Producing ?minced fish? in fishing vessels would decrease weight to 60% and volume fourfold compose to whole fish without decreasing the quality of surimi produced.Keywords : by?catch, minced fish, non economic fish, surimi, quality of surimi.