Didit Kustantio Dewanto
Sekolah Tinggi Perikanan dan Kelautan Palu

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

Kajian Mikroplastik Pada Ikan Ekonomis di Pasar Tradisional Kota Palu Roni Hermawan; Mohamad Akbar; Mubin Mubin; Alismi M Salanggon; Anita Treisya Aristawati; Renol Renol; Finarti Finarti; Eka Aji Pramita; Yeldi S Adel; Didit Kustantio Dewanto; Mohamad Syahril
Jurnal Kelautan Vol 16, No 1: April (2023)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v16i1.17566

Abstract

ABSTRAKMikroplastik merupakan luruhan dari serpihan plastik yang terbuang atau sengaja dibuang ke laut. Dampak dari cemaran mikroplastik ini sangat berbahaya, terlebih lagi jika masuk kedalam jaringan tubuh hewan bahkan manusia. Ketergantungan konsumsi lokal tersebut menyebabkan tingginya resiko terpapar cemaran mikroplastik dari ikan laut yang dipasarkan melalui pasar-pasar tradisional. Tujuan penelitian ini adalah menghitung konsentrasi mikroplastik pada sistem pencernaan ikan laut konsumsi pada pasar tradisional di Kota Palu dan mengkaji jenis kandungan plastik yang terdapat pada pencernaan ikan konsumsi tersebut. Sampling ikan yang diambil adalah ikan laut yang dipasarkan di 4 (empat) pasar tradisional Kota Palu, sampel yang diambil adalah ikan yang segar dan biasa dikonsumsi masyarakat. Pengukuran mikroplastik dilakukan dengan metode destruksi bahan organik pada saluran pencernaan ikan menggunakan larutan KOH 10% dan H2O230% hingga 50%, perendaman antara 48 hingga 72 jam. Sampel diamati menggunakan mikroskop, untuk memastikan bahwa objek adalah mikroplastik metode Hot Needle Test. Berdasarkan pengamatan diperoleh hasil Ikan Kembung (Rastrelliger kanagurta) terdapat kandungan mikroplastik sebesar 0,375 item/ind atau 0,022 item/gr berat badan ikan, jenis mikroplastik yang ditemukan adalah jenis serpihan plastik. Ikan Baronang (Siganus canaliculatus) ditemukan kandungan mikroplastik sebesar 3,75 item/ind atau 0,071item/gr berat badan ikan, jenis mikroplastik yang ditemukan adalah jenis serpihan dan serat.Kata Kunci: mikroplastik, ikan, pencernaan, konsumsi, pasarABSTRACTMicroplastics are the decay of plastic flakes that were wasted or deliberately thrown into the sea. The impact of microplastic contamination is very dangerous, especially if it enters the body tissues of animals and even humans. This dependence on local consumption causes a high risk of exposure to microplastic contamination from marine fish marketed through traditional markets. The purpose of this study was to calculate the concentration of microplastics in the digestive system of consumption fish at traditional markets in Palu City and to examine the types of plastic content found in the digestion of consumption fish. The fish samples taken were marine fish marketed in 4 (four) local markets in Palu City, the samples were fresh fish and commonly consumed by locals. Microplastic measurements were carried out by the method of destroying organic matter in the digestive tract of fish using a 10% KOH solution and 30% to 50% H2O2, soaking between 48 to 72 hours. The samples were observed using a microscope, to ensure that the objects were microplastic using the Hot Needle Test method. Based on observations, it was found that mackerel (Rastrelliger kanagurta) contained a microplastic content of 0.375 item/ind or 0.022 item/gr fish body weight, the type of microplastic found was a type of plastic flake. Baronang fish (Siganus canaliculatus) was found to contain microplastics of 3.75 items/ind or 0.071 items/gr fish body weight, the types of microplastics found were flakes and fibers.Keywords: Microplastic, fish, digestion, consumption, local market
EVALUATION OF ANTIOXIDANT PROPERTIES AND SENSORY CHARACTERISTICS OF Rhizophora mucronata LEAF TEA INFUSION Wendy Alexander Tanod; Didit Kustantio Dewanto; Novalina Maya Sari Ansar; Eko Cahyono; Frets Jonas Rieuwpassa; Yana Sambeka
Jurnal Perikanan Unram Vol 14 No 4 (2024): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v14i4.1297

Abstract

Rhizophora mucronata leaves are known to have antioxidant properties, including the presence of flavonoids and phenolic compounds. The infusion of these mangrove leaves has the potential for development into herbal drinks. This study aims to evaluate the antioxidant potential of R. mucronata leaves tea infusion that has been dried using sunlight and an oven. The process involved cleaning the R. mucronata mangrove leaves, drying them (either in the sun or in an oven), and grinding them into a powder. This mangrove leaf powder was then brewed with hot water and subsequently dried. The antioxidant capacity of the leaves tea infusion extract was assessed using the DPPH method. Additionally, the sensory acceptance of the mangrove leaves tea infusion was evaluated based on its appearance (color) and aroma. The results demostrated that the percentage inhibition of the mangrove leaves tea infusion extract dried in the sun ranged from 2.80% to 68.83%, with an IC50 of 79.99 ± 0.21 µg/mL. Conversely, the percentage inhibition of the oven-dried mangrove leaves tea infusion extract ranged from 19.25% to 95.41%, with an IC50 of 51.55 ± 0.12 µg/mL. Panelists expressed a moderate appreciation for the appearance (color) and aroma of the R. mucronata leaves tea infusion. No significant differences were observed in the assessments of appearance and aroma between the oven-dried and sun-dried samples. Overall, the findings suggest that R. mucronata leaves possess the potential to be developed into antioxidant-rich herbal drinks that can be appealing to consumers.