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Identifikasi Mikroplastik pada Udang Litopenaeus vannamei di Perairan Gunung Anyar Surabaya Chairrany, Bibi; Mahmiah; Sa’adah, Nor
Environmental Pollution Journal Vol. 1 No. 1: April 2021
Publisher : ECOTON: Ecological Observation and Wetlands Conservation

Hutan mangrove adalah salah satu tempat vital bagi regenerasi biota laut namun Mangrove Gunung Anyar yang terletak di Pesisir Timur Surabaya berada sangat dekat dengan pemukiman. Limbah rumah tangga yang mencemari kawasan ini tentu saja mempengaruhi hasil tangkapan dan budidaya udang. Tujuan penelitian ini yaitu untuk mengetahui kelimpahan mikroplastik padasampel udang di Perairan Gunung Anyar Surabaya. Pengambilan sampel udang menggunakan metode purposive sampling serta menganalisis sampel menggunakan metode dekstruksi dengan campuran pelarut H2O2 30% dan H2SO4 30%. Hasil dari penelitian menunjukan kelimpahan mikroplastik tertinggi pada sampel udang tambak yaitu 6,66 partikel/gram dan 11 partikel/gram pada udang laut. Jenis mikroplastik yang ditemukan yaitu jenis Fiber biru, Fiber merah, Fragmen biru, Fragmen merah dan Film/Filament. Hasil penelitian ini diharapkan dapat memberikan beberapa informasi terkait cemaran mikroplastik yang disebabkan oleh limbah plastik, kelimpahan mikroplastik di lingkungan laut serta hubungan tercemarnya biota laut yang menjadi sumber makanan bagi masyarakat sekitar dengan lingkungan laut.

Blue Energy dari Mikroalga Chlorella sp. sebagai Bahan Baku Biodiesel Rheamyta Carissa Siregar; Mahmiah
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 5 No 2 (2023): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v5i2.73

Biodiesel is a renewable clean bioenergy because it can be produced from vegetable oil. One of the efforts to increase energy independence in the marine sector (blue energy) is to prepare potential alternative fuels derived from microalgae. Microalgae have advantages over other types of plants, because the growth of microalgae is very productive and the growth rate is very fast and does not require fertile land, so it does not compete with food crops. Some microalgae have an oil content of up to 80% of their body mass. Aims to provide information about differences in extraction methods and identification of oil content with microalgae type Chlorella sp. which can be used as raw material for biodiesel. This research method uses FTIR (Fourier Transform Infrared) and GC-MS (Gas Chromatography-Mass Spectrometry) analysis. The results showed that the soxhlet extraction method was able to separate biodiesel and to identify biodiesel raw materials, the percentage of microalgae oil and compound content was obtained. The most dominant compounds are Linoleic Acid compounds, Palmitic Acid compounds, which are dominated by Stearic Acid compounds.

Sebaran Timbal (Pb) di Perairan Wonorejo, Surabaya Jawa Timur Tiento Rifqy Pribadi; Mahmiah; Rudi Siap Bintoro
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 5 No 2 (2023): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v5i2.74

Wonorejo waters are one of the coasts that receive river flows (DAS) Jagir Wonokromo, Wonorejo, and Gunung Anyar rivers, Surabaya City. The Wonorejo coast is suspected of experiencing a decrease in water quality as there is a threshold value stipulated by the Decree of the Minister of Environment Number 51 of 2004 Research on the level of Pb pollution needs to be carried out because Wonorejo Waters are waters that are drained by industrial waste disposal around the estuary The method used in analyzing the content of heavy metal Pb is using Atomic Absorption Spectophotometry (AAS). From the research results, it was found that the highest Pb concentration value in this study was 0.31 mg/L while the lowest concentration value was 0.11 mg/L. The results of this study indicate that Wonorejo waters can be declared polluted because the concentration exceeds the NAV set by the Ministry of Environment and Forestry, which is 0.008 mg/L. The correlation between supporting parameters such as pH and salinity has a relationship with a fairly strong correlation value. The distribution of Pb is uneven due to the weak current velocity.

PEMANFAATAN RUMPUT LAUT Eucheuma cottonii dari SARONGGI-MADURA SEBAGAI ALTERNATIF PAKAN IKAN TINGGI KAROTEN Farilla Intan Kurnia Rizky; Marcy Valerie Anggraini; Triski Aulia Rofilla; Aulia Putri Apsari; Mahmiah
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 6 No 1 (2024): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v6i1.81

Rumput laut Eucheuma cottonii banyak dibudidaya oleh petani rumput laut di Madura dan pemanfaatannya masih belum banyak. Rumput laut Eucheuma cottonii. merupakan salah satu penghasil karotenoid yaitu β- karoten yang mempunyai aktivitas sebagai antioksidan. Saat ini sudah ada pewarna sintetis yang mampu meningkatkan intensitas warna pada tubuh ikan koi. Akan tetapi, harganya relatif mahal dan kandungan pewarna sintetis berpotensi mengakibatkan pencemaran lingkungan. Sebagai bentuk solusi alternatif yang ramah lingkungan, diperlukan riset terkait alternatif untuk bahan pakan ikan koi yang dapat meningkatkan intensitas warna sehingga para pembudi daya ikan koi tidak perlu mengeluarkan biaya banyak untuk budidaya. Metode yang dipakai pada riset ini adalah meliputi ekstraksi, uji beta karoten, mikroenkapsulasi. Hasil riset menunjukan kandungan beta karoten pada rumput laut Eucheuma cottonii 0,09 ppm dan hasil mikroenkapsulasi sebesar 45,13 %. Laju pertumbuhan dan peningkatan warna secara signifikan pada ikan koi terjadi pada perlakuan 4 % dari hari ke-7 sampai hari ke-21. Penambahan maltodekstrin dalam mikroenkapsulasi ekstrak rumput laut Eucheuma cottonii dapat menjaga kestabilan pigmen β-karoten agar optimal dalam pakan ikan.

Blue Energy dari Mikroalga Chlorella sp. sebagai Bahan Baku Biodiesel Rheamyta Carissa Siregar; Mahmiah
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 5 No 2 (2023): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v5i2.73

Biodiesel is a renewable clean bioenergy because it can be produced from vegetable oil. One of the efforts to increase energy independence in the marine sector (blue energy) is to prepare potential alternative fuels derived from microalgae. Microalgae have advantages over other types of plants, because the growth of microalgae is very productive and the growth rate is very fast and does not require fertile land, so it does not compete with food crops. Some microalgae have an oil content of up to 80% of their body mass. Aims to provide information about differences in extraction methods and identification of oil content with microalgae type Chlorella sp. which can be used as raw material for biodiesel. This research method uses FTIR (Fourier Transform Infrared) and GC-MS (Gas Chromatography-Mass Spectrometry) analysis. The results showed that the soxhlet extraction method was able to separate biodiesel and to identify biodiesel raw materials, the percentage of microalgae oil and compound content was obtained. The most dominant compounds are Linoleic Acid compounds, Palmitic Acid compounds, which are dominated by Stearic Acid compounds.

Sebaran Timbal (Pb) di Perairan Wonorejo, Surabaya Jawa Timur Tiento Rifqy Pribadi; Mahmiah; Rudi Siap Bintoro
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 5 No 2 (2023): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v5i2.74

Wonorejo waters are one of the coasts that receive river flows (DAS) Jagir Wonokromo, Wonorejo, and Gunung Anyar rivers, Surabaya City. The Wonorejo coast is suspected of experiencing a decrease in water quality as there is a threshold value stipulated by the Decree of the Minister of Environment Number 51 of 2004 Research on the level of Pb pollution needs to be carried out because Wonorejo Waters are waters that are drained by industrial waste disposal around the estuary The method used in analyzing the content of heavy metal Pb is using Atomic Absorption Spectophotometry (AAS). From the research results, it was found that the highest Pb concentration value in this study was 0.31 mg/L while the lowest concentration value was 0.11 mg/L. The results of this study indicate that Wonorejo waters can be declared polluted because the concentration exceeds the NAV set by the Ministry of Environment and Forestry, which is 0.008 mg/L. The correlation between supporting parameters such as pH and salinity has a relationship with a fairly strong correlation value. The distribution of Pb is uneven due to the weak current velocity.

PEMANFAATAN RUMPUT LAUT Eucheuma cottonii dari SARONGGI-MADURA SEBAGAI ALTERNATIF PAKAN IKAN TINGGI KAROTEN Farilla Intan Kurnia Rizky; Marcy Valerie Anggraini; Triski Aulia Rofilla; Aulia Putri Apsari; Mahmiah
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 6 No 1 (2024): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v6i1.81

Rumput laut Eucheuma cottonii banyak dibudidaya oleh petani rumput laut di Madura dan pemanfaatannya masih belum banyak. Rumput laut Eucheuma cottonii. merupakan salah satu penghasil karotenoid yaitu β- karoten yang mempunyai aktivitas sebagai antioksidan. Saat ini sudah ada pewarna sintetis yang mampu meningkatkan intensitas warna pada tubuh ikan koi. Akan tetapi, harganya relatif mahal dan kandungan pewarna sintetis berpotensi mengakibatkan pencemaran lingkungan. Sebagai bentuk solusi alternatif yang ramah lingkungan, diperlukan riset terkait alternatif untuk bahan pakan ikan koi yang dapat meningkatkan intensitas warna sehingga para pembudi daya ikan koi tidak perlu mengeluarkan biaya banyak untuk budidaya. Metode yang dipakai pada riset ini adalah meliputi ekstraksi, uji beta karoten, mikroenkapsulasi. Hasil riset menunjukan kandungan beta karoten pada rumput laut Eucheuma cottonii 0,09 ppm dan hasil mikroenkapsulasi sebesar 45,13 %. Laju pertumbuhan dan peningkatan warna secara signifikan pada ikan koi terjadi pada perlakuan 4 % dari hari ke-7 sampai hari ke-21. Penambahan maltodekstrin dalam mikroenkapsulasi ekstrak rumput laut Eucheuma cottonii dapat menjaga kestabilan pigmen β-karoten agar optimal dalam pakan ikan.

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