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All Journal Jurnal Ilmiah Perikanan dan Kelautan Jurnal Layanan Masyarakat (Journal of Public Service) Journal of Marine and Coastal Science
Pursetyo, Kustiawan tri
Departemen Kelautan, Fakultas Perikanan Dan Kelautan Universitas Airlangga, Surabaya, Jawa Timur, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Environmental Science Immunology & microbiology Social Sciences Other

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The Effect of Different pH in Extraction Process Against Physicochemical Properties of Refined Iota Carrageenan from Eucheuma spinosum Seaweed. Miftakhul Ulumiah; Mochammad Amin Alamsjah; Kustiawan Tri Pursetyo
Journal of Marine and Coastal Science Vol. 8 No. 1 (2019): FEBRUARY
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (293.099 KB) | DOI: 10.20473/jmcs.v8i1.21142

Abstract

Gelatin is a simple protein obtained from the partial hydrolysis of collagen from the skin, bones, joints and connective tissue of animals. One potential material for the manufacture of gelatin is fish bone milkfish (Chanos chanos). Gelatin derived from fish bones with acid process is able to change the triple helix collagen fibers into a single chain, whereas the solvent base only produce double chain. Demineralization of bone or fish skin should use a weak acid is acetic acid, because when using strong acids will produce a strong scent and color gelatin becomes dark. This study aims to determine the effect of the use of acetic acid to the production of fish bone gelatin and the concentration of acetic acid is necessary to produce gelatin with physical and chemical properties of the best. This study uses a Completely Randomized Design (CRD) with four treatments and five replications. The treatments used in this study is the concentration of acetic acid 2%, 4%, 6% and 8%. Based on the research, it was found that the acetic acid solvent effect on the value of the yield and gel strength, but has no effect on the pH value and viscosity. Acetic acid concentration 8% give 4.102% yield value; pH value (acidity) 4.98; 134.313 bloom gel strength and viscosity of 3.6 cP. FTIR analysis results indicate that the fish bone gelatin produced from this research have the same functional group with commercial gelatin.
Study of Heavy Metal Cadmium Content (Cd) In Various Sizes of Blood Shells (Anadara granosa) In Bancaran Coastal Bangkalan, Madura Esti Sudaria Ulfah; Boedi Setya Rahardja; Kustiawan Tri Pursetyo
Journal of Marine and Coastal Science Vol. 8 No. 3 (2019): SEPTEMBER
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (477.317 KB) | DOI: 10.20473/jmcs.v8i3.21160

Abstract

Ocean pollution occurs because of the concentration of population, tourism and industrialization in the coastal areas, causing contamination of the water ecosystem by heavy metals, one of them is cadmium (Cd). Existence of heavy metals in the water can be accumulated in aquatic  organisms, especially blood shells. Its dangerous for human that consumed them. The purpose of this study is to know the contents of cadmium (Cd) in blood shells, water, sediments and to determine the relation of blood shell’s size with the contents of cadmium (Cd) in the Bancaran Coastal, Bangkalan, Madura. Research methods that used was observations method. The main parameters that  observed  are  the contents of cadmium (Cd) in sea water, sediment and blood shells in the Bancaran Coastal. Supporting parameters that observed are water quality include temperature, p H, salinity, DO and brightness. Data analysis is used to find relations of the data that obtained (regression-correlation). The results showed that the contents of cadmium (Cd) of large blood shells are higher than the small and medium blood shells and there is relat ion between the size of the blood shells with the contents of cadmium (Cd). The water quality of Bancaran Coastal are the temperature 28oC-29oC, pH 7-8, salinity 30 ppt, the brightness 30 cm and DO 5 mg/l.
Depuration of Heavy Metals with Nanoparticle-Sized Active Charcoal from Coconut Shell (Cocos nucifera) in Blood Cockles (Anadara granosa) Putri Alia Paramitha; Yusuf Taufik Hidayat; Kamiliya Zahrah Taher; Intan Cahyarini; Boedi Setya Rahardja; A Shofy Mubarak; Kustiawan Tri Pursetyo
Journal of Marine and Coastal Science Vol. 11 No. 2 (2022): JUNE
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmcs.v11i2.35235

Abstract

Anadara granosa are one of the benthic organisms that are frequently reported because contained heavy metals because of water pollution. This is because A. granosa is a feeder filter so that accumulates heavy metals in its body. Reduce the levels of heavy metals with activated charcoal from coconut shells in the absorbance process using the depuration method. It is re-optimized with the use of nano-active charcoal. The goal was to determine the effect of concentrations of nano-active charcoal from coconut shells on the heavy metal content of A. granosa. Stages of this reserch, namely charcoal activation, ultrasonication, SEM testing, blood shell depuration, and heavy metal testing. Based on the results of the Scanning Electron Microscope (SEM) Test it is known that the charcoal particles are sized 10-9 nm. The types of heavy metals found included hydrargyrum (Hg) 0.0009 mg/kg, cadmium (Cd) 0.62 mg/kg, and plumbum (Pb) 1.82 mg/kg. Heavy metals with lowest content is found in P5 (active charcoal concentration of 15% of the sample weight) of mercury (Hg) 0.0002 mg/kg; cadmium (Cd) 0.1 mg/kg; and lead (Pb) 0.373 mg/kg. This shows that the higher concentraion of activated charcoal given, the lower heavy metal content.
Co-Authors A. Shofy Mubarak Abdillah, Annur Ahadi Abdul Manan Agustono - Agustono Agustono Agustono Agustono, Agustono Asmaul Huniyah Boedi Setya Rahardja Dewi, Nina Nurmalia Didya Sinatryani Eka Saputra Endang Dewi Masithah Esti Sudaria Ulfah Heru Pramono Intan Cahyarini Kamiliya Zahrah Taher Miftakhul Ulumiah Mirni Lamid Mochammad Amin Alamsjah Pulung Siswantara Putri Alia Paramitha Rio Khalif Eldiaz Sapto Andriyono Siti Istiqomah Sudarno Sudarno Tjahjaningsih, Wahju Wahju Thajaningsih Woro Hastuti Setyantini Yusuf Taufik Hidayat Zakaria, Muhammad Habib