Garuda - Garba Rujukan Digital

KANDUNGAN LOGAM BERAT TIMBAL (Pb) PADA BAHAN BAKU AIR UNTUK PRODUKSI GARAM DI KAWASAN LADANG GARAM SEDAYULAWAS LAMONGAN Hilda Ziya Abiyana; Mahmiah
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 2 (2021): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i2.45

The waters of Sedayu Lawas Lamongan are widely used as salt production sites. Salt production is strongly influenced by the quality of raw water used. The quality of water raw materials must be free from heavy metal pollutants or in accordance with the threshold value (NAB). One of the heavy metals that pollute the environment is Lead (Pb). This study aims to analyze the heavy metal content of Pb in water raw materials, how the quality of raw materials of water when compared with quality standards and how the correlation between water physics-chemical parameters include rainfall, wind, temperature, salinity, pH to Pb content in 5 stations observation. The heavy metal content of Pb was analyzed by the Inductively Coupled Plasma-Optical Emission Spectrophotometer (ICP-EOS) method. Correlation using Pearson method. The results showed that Pb content of raw water for salt production in five stations was 0.0626, 0.0672, 0.0455, 0.0487, and 0.0416 ppm, respectively. Based on the measurement results when compared with the Ministerial Decree No. 51 Year 2004, the raw material of water used exceeds NAB which is 0.008 ppm. The result of parameter correlation to Pb content shows salinity, pH, has a strong inversely relationship affecting the presence of heavy metals. The temperature parameter has a direct relationship to the Pb content

PEMANFAATAN LIMBAH GARAM (BITTERN) UNTUK PEMBUATAN MAGNESIUM KLORIDA (MgCl2) Giman; Mahmiah
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 1 No 2 (2019): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v1i2.31

Pembuatan garam NaCl dari air laut dengan metode penambahan ion sejenis menghasilkan garam dengan kemurnian tinggi, dan mempunyai hasil samping berupa air tawar dan bittern. Bittern dapat dimanfaatkan untuk berbagai kepentingan, baik dalam bidang industri maupun kesehatan, salah satunya adalah sebagai sumber mineral magnesium. Magnesium yang diisolasi dari bahan dasar bittern dengan penambahan natrium hidroksida menghasilkan magnesium hidroksida, kemudian dirubah menjadi magnesium klorida dengan menambahkan asam klorida. Tujuan penelitian ini adalah mengisolasi mineral magnesium dari bahan dasar bittern. Hasil yang diperoleh berupa kristal MgCl2 yang berwarna putih bersifat higroskopis dengan kadar 65,5%.

Dampak Virus Corona (Covid-19) Terhadap Sektor Kelautan dan Perikanan : A Literature Review Mery Nova Sari; Fransiska Yuliasara; Mahmiah
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 2 No 2 (2020): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v2i2.41

The Corona Virus Pandemic (Covid-19) shook mankind around the world including Indonesia in early 2020. The coronavirus outbreak and the issuance of regulations on PSBB (Large-Scale Social Restrictions) make changes in community activities outside the home, whether it's job, education and even transportation. The decline in activity if it lasts a long time will certainly have an impact on the decline in people’s daily income, especially local fishermen and fish farmers. Not only that, some fish storage sheds (cold storage) occurs accumulation of fish or over stock because it can not be supplied outside the area as usual. This article is intended to discuss the impact of Covid-19 on the marine and capture fisheries sector. The results of the literature study show the impact of Covid-19 on the marine and fisheries sector, namely the decline in fish prices in some regions by up to 50% due to declining demand such as some fish export companies closed, many hotels and restaurants closed which are the main buyers of fish and seafood.

PENCEMARAN MINYAK DI PERAIRAN UTARA PULAU BAWEAN Sarah Nur Qowiyah; Mahmiah; Rudi Siap Bintoro
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 2 (2021): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i2.40

Marine pollution results in a decrease in the quality and quantity of coastal and marine resources. Most of the people in tambak sub-district have a livelihood as fishermen and work in the field of fish processing industry and seafood trade and the location of the waters are often passed by industrial vessels. This resulted in increased ship activity in the waters of Labuhan Beach, Tambak District, Tanjungori Village. As the activity increases it causes marine pollution. One of the sources of pollution produced is oil spills from former fuel boats or ships that cross the area of the water. This method can provide information about the condition of the waters according to their designation. The purpose of this study is to know the water quality based on the parameters of temperature, pH, salinity and brightness and know how much oil content in the waters of Labuhan Beach, Bawean Island. Sea water sampling was conducted at 4 stations, then the results were compared with sea water quality standards for biota based on KEPMEN LH No.51 Year 2004. The results showed that the oil content ranged from 0.0016%–0.0377%. As for the pH parameter, salinity and brightness in accordance with the quality standard, for the temperature parameter exceeds the standard value of quality. Based on this study, pollution index calculations show that the waters of Labuhan Beach, Bawean Island are in the category of lightly polluted.

ANALISIS BAKTERI SIMBION MANGROVE AVICENNIA MARINA SEBAGAI ANTIFOULING Alifia Rizky Novitasari; Nor Sa'adah; Mahmiah
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 2 (2021): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i2.43

The accumulation of biofouling on a substrate causes material loss and huge economics in the maintenance of aquaculture systems, ship hulls, seawater pipelines, coastal power plants, and other marine infrastructure. Prevention of the attachment of biofouling organisms using antifouling paints that have been developed and used for a long time. Antifouling paint contains chemical compounds (biocides). The most sensitive organisms to antifouling paint are gastropods and bivalve that cause endocrine disorders, larval disorders and shell malformations. This study aims to obtain antifouling bacteria through the isolation process of bacteria obtained from the bark Avicennia marina mangrove. The method was beginning with isolation of bacteria bark of Avicennia marina mangrove, identification of bacteria, and antifouling activity test. The results obtained from isolation of bacteria, there are 9 bacteria endophytic symbionts of the inner bark and 9 epiphytic bacteria of the outer bark. The inhibition zone test of the endophytic bacteria in the bark showed that there was no antifouling activity.

KANDUNGAN LOGAM BERAT TIMBAL (Pb) PADA BAHAN BAKU AIR UNTUK PRODUKSI GARAM DI KAWASAN LADANG GARAM SEDAYULAWAS LAMONGAN Hilda Ziya Abiyana; Mahmiah
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 2 (2021): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i2.45

The waters of Sedayu Lawas Lamongan are widely used as salt production sites. Salt production is strongly influenced by the quality of raw water used. The quality of water raw materials must be free from heavy metal pollutants or in accordance with the threshold value (NAB). One of the heavy metals that pollute the environment is Lead (Pb). This study aims to analyze the heavy metal content of Pb in water raw materials, how the quality of raw materials of water when compared with quality standards and how the correlation between water physics-chemical parameters include rainfall, wind, temperature, salinity, pH to Pb content in 5 stations observation. The heavy metal content of Pb was analyzed by the Inductively Coupled Plasma-Optical Emission Spectrophotometer (ICP-EOS) method. Correlation using Pearson method. The results showed that Pb content of raw water for salt production in five stations was 0.0626, 0.0672, 0.0455, 0.0487, and 0.0416 ppm, respectively. Based on the measurement results when compared with the Ministerial Decree No. 51 Year 2004, the raw material of water used exceeds NAB which is 0.008 ppm. The result of parameter correlation to Pb content shows salinity, pH, has a strong inversely relationship affecting the presence of heavy metals. The temperature parameter has a direct relationship to the Pb content

Jenis dan Kelimpahan Mikroplastik Pada Sedimen di Gili Ketapang, Probolinggo Ika Pibria Ningrum; Nor Sa’adah; Mahmiah Mahmiah
Journal of Marine Research Vol 11, No 4 (2022): Journal of Marine Research
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jmr.v11i4.35467

Gili Ketapang merupakan pulau kecil yang secara administratif masuk dalam wilayah Kecamatan Sumberasih Kabupaten Probolinggo, dengan mayoritas masyarakatnya bermata pencaharian sebagai nelayan. Pengelolaan sampah di lingkungan sekitar dianggap masih minim sehingga terlihat jelas banyaknya sampah yang berserakan di bibir pantai yang berjarak dekat dengan pemukiman. Sampah plastik akan mengalami degradasi menjadi plastik yang lebih kecil dari ukuran semula yang disebut dengan mikroplastik. Mikroplastik merupakan jenis sampah plastik yang berukuran lebih kecil dari 5 mm, dapat mengapung atau tenggelam karena berat massa jenis mikroplastik lebih ringan daripada air laut. Jenis mikroplastik yang banyak ditemukan di perairan yaitu fragment,fiber,dan film. Penelitian ini bertujuan mengetahui jenis, warna, ukuran dan kelimpahan mikroplastik pada sedimen di Gili Ketapang, Probolinggo. Metode yang digunakan diawali dengan pengambilan sampel air secara purposive random sampling. Sampel sedimen digunakan untuk mengidentifikasi mikroplastik menggunakan mikroskop dengan perbesaran 10 kali. Jenis mikroplastik yang ditemukan pada sedimen di Gili Ketapang, Probolinggo adalah fiber, fragmen dan film. Pada sedimen ditemukan beberapa warna untuk fiber yaitu biru, hijau dan merah, untuk jenis fragmen berwarna kuning, biru, merah, dan hijau, sedangkan pada jenis filamen ditemukan hanya satu warna yaitu putih bening. Ukuran mikroplastik pada sedimen 0,025 – 2,975 mm. Kelimpahan mikroplastik pada sedimen di 3 stasiun paling banyak pada jenis film sebanyak 1635 partikel/kg dan paling sedikit adalah 1180 partikel/kg dengan jenis mikroplastik fiber. Gili Ketapang is a small island that is administratively included in the Sumberasih District of Probolinggo Regency, with the majority of the people living as fishermen. Waste Management in the surrounding environment is considered to be still minimal so that it is clear that there is a lot of garbage scattered on the shoreline close to settlements. Plastic waste will degrade into plastic that is smaller than its original size called microplastics. Microplastics are a type of plastic waste that is smaller than 5 mm, can float or sink because the weight of the density of microplastics is lighter than sea water. The types of microplastics found in water are fragments,fibers, and films. This study aims to determine the type, color, size and abundance of microplastics in sediments in Gili Ketapang, Probolinggo. The method used begins with water sampling called purposive random sampling. Sediment samples were used to identify microplastics using a microscope with a magnification of 10 times. The types of microplastics found in sediments in Gili Ketapang, Probolinggo are fibers, fragments and films. In the sediment found several colors for fiber such as blue, green and red, for the type of fragments are yellow, blue, red, and green, while in the type of filaments found only one color is clear white. The size of microplastics in sediments is 0.025-2.975 mm. The abundance of microplastics in sediments at 3 stations in the type of film as much as 1635 particles/kg and at least 1180 particles/kg with the type of microplastics fiber mostly.

KANDUNGAN TOTAL FLAVONOID EKSTRAK AKAR MANGROVE DENGAN METODE SPEKTROFOTOMETRI UV-VIS Jannatus Mega Blezensky; Mahmiah Mahmiah; Giftania Wardani Sudjarwo
Journal of Pharmaceutical Care Anwar Medika (J-PhAM) Vol 4 No 2 (2022): Journal of Pharmaceutical Care Anwar Medika
Publisher : STIKES Rumah Sakit Anwar Medika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36932/jpcam.v4i2.81

Mangrove mempunyai jenis akar yang berbeda-beda, akar mangrove mengandung senyawa flavonoid yang mempunyai manfaat sebagai antioksidan yang signifikan, sehingga penting untuk diteliti. Flavonoid memiliki kemampuan sebagai antioksidan karena mampu mendonasikan atom H dari gugus hidroksi kepada senyawa radikal bebas. Tujuan dari penelitian ini adalah untuk mengetahui kandungan total flavonoid ekstrak akar mangrove dengan metode spektrofotometri UV-Vis. Metode dari penelitian ini adalah studi literatur, yaitu dengan mengumpulkan literatur dari jurnal/artikel ilmiah dan akan dibahas dalam bentuk ulasan. Pada penelitian studi literatur ini didapatkan hasil bahwa spesies yang sering digunakan dan diteliti yaitu Rhizophora mucronata. Metode ekstraksi yang banyak digunakan yaitu metode maserasi. Pelarut yang banyak digunakan serta sering menghasilkan kandungan total flavonoid ekstrak akar mangrove yang tertinggi yaitu pelarut metanol. Pada penelitian studi literatur kandungan total flavonoid ekstrak akar mangrove dengan metode spektrofotometri UV-Vis ini, hasil menunjukkan bahwa kandungan total flavonoid beragam dan bervariasi, yaitu mulai dari rentang sebesar 0.00778 ± 0.00007 (mg RE/g) hingga 792 ± 0.28 (mg QE/g).

Profil Metabolit Ekstrak Etanol Enhalus acoroides (L.F.) Royle,1839 dari Nusa Tenggara Timur Mahmiah Mahmiah; Nor Sa’adah; Heronima Natalia Sunur; Nani Wijayanti
Journal of Marine Research Vol 12, No 1 (2023): Journal of Marine Research
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jmr.v12i1.35076

Balauring, Nusa Tenggara Timur, merupakan salah satu wilayah yang berada di bagian Timur Indonesia yang terdapat banyak ekosistem lamun salah satu jenisnya adalah Enhalus acoroides. Pengembangan potensi lamun jenis ini oleh masyarakat masih kurang dimanfaatkan hanya sebagai sampah laut di perairan. Secara kemotaksonomi, daun tanaman lamun Enhalus acoroides mengandung senyawa bioaktif yang berpotensi untuk dijadikan alternatif pengobatan. Tujuan penelitian ini untuk mengidentifikasi kandungan senyawa bioaktif daun tanaman lamun Enhalus acoroides dari Balauring Nusa Tenggara Timur. Adapun metode ekstraksi maserasi dengan pelarut etanol 96%, parameter standardisasi non spesifik, skrining fitokimia, dan analisis FTIR (Fourier Transform InfraRed) dan GC/MS. Hasil penelitian menunjukkan Enhalus acoroides dari keluarga Hydrocharitaceae memiliki nilai kadar air, susut pengeringan dan kadar abu berturut-turut sebesar 6%, 12,9280% dan 14,7173%. Hasil identifikasi senyawa metabolit sekunder ekstrak etanol 96% Enhalus acoroides didapatkan gugus ikatan senyawa seperti gugus -OH atau -NH (ⱱ 3329.958 dan 3252.176 cm-1), -CH (ⱱ 2921.204 dan 2851.486 cm-1), -C=O (ⱱ 1641.169 cm-1), -C=C (ⱱ 1517.243 cm-1). Hasil GC/MS menunjukkan adanya 9 senyawa yang didominasi golongan alkaloid, flavonoid, terpenoid, dan polifenol.Balauring, East Nusa Tenggara, is one of the areas in eastern Indonesia with many seagrass ecosystems, one of which is Enhalus acoroides. The community's potential development of this type of seagrass is still underutilized, serving only as marine debris in the waters. According to chemotaxonomic analysis, the leaves of the seagrass plant Enhalus acoroides contain bioactive compounds that have the potential to be used as alternative treatments. Research objective: to identify the content of bioactive compounds in the leaves of the seagrass plant Enhalus acoroides from Balauring, East Nusa Tenggara. Methods: maceration extraction method with 96% ethanol solvent, non-specific standardization parameters, phytochemical screening, and FTIR (Fourier Transform InfraRed) and GC/MS analysis. Results: Enhalus acoroides, a member of the Hydrocharitaceae family, had moisture content, drying loss, and ash content values of 6%, 12.9280%, and 14.7173%, respectively. Secondary metabolites of Enhalus acoroides 96 percent ethanol extract were identified as-OH or-NH groups (3329,958 and 3252.176 cm-1),-CH (2921,204 and 2851,486 cm-1),-C=O (1641,169 cm-1), and-C=C (1517,243 cm-1). The GC/MS results revealed 9 compounds that were dominated by alkaloids, flavonoids, terpenoids, and polyphenols.

Akumulasi Logam Berat Cu Dan Hg pada Mangrove Rhizopora mucronata di Pantai Timur Surabaya (Pamurbaya) Mahmiah Mahmiah; Nor Sa'adah; Engki Andri Kisnarti; Fachrani Vebranti Millenia
Jurnal Kelautan Nasional Vol 18, No 1 (2023): APRIL
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jkn.v18i1.11740

Cemaran logam berat seperti Cu dan Hg di Pantai Timur Surabaya (Pamurbaya) dikhawatirkan memberikan dampak terhadap kualitas perairan. Mangrove yang tumbuh di Pamurbaya dapat digunakan sebagai indikator cemaran logam berat. Kemampuan mangrove dalam mengakumulasi logam berat ditunjukkan melalui nilai bioakumulasi (BAF), biokonsentrasi (BCF), dan translokasi faktor (TF). Salah satu mangrove yang terdapat di Pamurbaya adalah R.mucronata. Mangrove inimemiliki akar penyangga, selain fungsinya untuk membantu tegaknya pohon, akar jenis ini juga dapat menahan dan memantapkan sedimen tanah, sehingga mencegahtersebarnya bahan pencemar ke area yang lebih luas. Penelitian ini bertujuan untuk mengidentifikasi bioakumulasi cemaran logam berat Cu dan Hg pada mangrove R. mucronata, air, dan sedimen di Pantai Timur Surabaya. Sampel penelitian diambil pada tiga lokasi melalui purposive sampling. Analisis logam berat Cu dan Hg menggunakan metode Atomic Absorption Spectroscopy (AAS) dan parameter fisika-kimia oseanografi diukur secara in situ dengan pengulangan sebanyak 3 kali. Hasil penelitian menunjukkan kadar logam berat Cu pada air lebih tinggi dibandingkan sedimen berturut-turut Stasiun 1>Stasiun 2>Stasiun 3. Hasil cemaran logam Hg pada mangrove R. mucronata, air dan sedimen menunjukkan nilai di bawah baku mutu dengan kisaran 0,0004< Hg<0,0006 ppm. Berdasarkan perhitungan nilai bioconcentration factor (BCF) dan translocation factor (TF), diketahui bahwa kemampuan mangrove R.mucronata sebagai tumbuhan excluder dan fitoekstraksi sehingga mampu mengurangi polutan logam berat dari lingkungan melalui proses penyerapan melalui akar dan translokasi menuju daun.

Title

Found 27 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 27 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 27 Documents
Search