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KOMPOSISI MIKROPLASTIK PADA ORGAN SARDINELLA LEMURU YANG DIDARATKAN DI PELABUHAN SENDANGBIRU, MALANG Yona, Defri; Harlyan, Ledhyane Ika; Fuad, M.Arif Zainul; Prananto, Yuniar Ponco; Ningrum, Diana; Evitantri, Mangesti Reza
JFMR (Journal of Fisheries and Marine Research) Vol. 5 No. 3 (2021): JFMR
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2021.005.03.20

Abstract

Mikroplastik sebagai hasil degradasi sampah plastik besar telah mencemari lingkungan perairan. Mikroplastik di perairan ini berpotensi untuk terakumulasi dalam tubuh organisme termasuk ikan. Penelitian ini bertujuan untuk menganalisis dan membandingkan mikroplastik pada insang, saluran pencernaan dan daging ikan lemuru (Sardinella lemuru) yang didaratkan di Pelabuhan Sendangbiru, Malang. Pengumpulan sampel ikan dilakukan pada Bulan Maret 2020 dengan membeli  10 ekor ikan hasil tangkapan nelayan dengan kisaran ukuran 11−15 cm. Analisis laboratorium dilakukan mulai dari mengukur panjang (cm) dan berat (g) ikan, melakukan pembedahan masing- masing organ, destruksi bahan organik dan identifikasi mikroplastik menggunakan mikroskop. Destruksi bahan organik dilakukan dengan merendam sampel organ yang sebelumnya telah ditimbang berat basahnya menggunakan larutan H2O2 30 % dan Fe(II) 0.05 M. Sampel diinkubasi selama 24 jam hingga sampel beserta bahan organik hancur. Tiga jenis mikroplastik ditemukan di seluruh sampel organ ikan dengan dominansi jenis fiber (54 %), diikuti oleh fragmen (43 %) dan film (3 %). Keberadaan mikroplastik pada ikan dapat dikaitkan dengan keberadaan mikroplastik di perairan. Komposisi jenis mikroplastik  berbeda  untuk  setiap  organ.  Fragmen  ditemukan  paling  banyak  pada insang, sedangkan pada saluran pencernaan dan daging didominasi oleh jenis fiber. Film ditemukan dengan jumlah yang paling sedikit pada ketiga organ. Keberadaan mikroplastik pada insang dan saluran pencernaan berkaitan dengan interaksi langsung ikan dengan lingkungan melalui pernapasan dan proses makan, sedangkan mikroplastik pada daging karena adanya proses translokasi atau perpindahan antar organ
Extraction of Manganese Ore from East Nusa Tenggara-Indonesia for Production of Mn(II)-Terephthalate and Mn(II)-Tartrate Coordination Polymers Abi, Faustina De Yesu Prisila; Tjahjanto, Rachmat Triandi; Prananto, Yuniar Ponco
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 02 (2025): JGEET Vol 10 No 02 : June (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.02.21556

Abstract

Pyrolusite, a manganese ore from East Nusa Tenggara (Indonesia), was explored and utilized in the production of crystalline Mn(II) based coordination polymers materials, namely Mn(II)-terephthalate and Mn(II)-tartrate. The pyrolusite was extracted into Mn(II) sulfate by acid method in the presence of hydrogen peroxide. The Mn(II) sulfate, characterized by X-ray fluorescence (XRF), infrared spectroscopy (IR), and X-ray powder diffraction (PXRD), was then used as a precursor in the production of crystalline Mn(II) based coordination polymers materials using a solution method at room temperature. Two ligands, terephthalate and tartrate, were used separately, in which the terephthalate complex was prepared using a layered solution technique, while the tartrate complex was made using a direct mixing technique. The synthesized Mn(II) coordination polymers were then characterized by FTIR and PXRD. This study finds that the manganese ore was extracted as MnSO4 compounds with purity of 96.88% and average crystallite size of 103 nm. The MnSO4 was successfully converted into crystalline Mn(II) coordination polymers materials. Based on IR and PXRD analyses, the crystalline products were identified as Mn(II)-aqua-terephthalato and Mn(II)-aqua-tartrato hydrate complexes, in which the former complex display 3D networks and the latter complex display 2D sheets of polymeric structures.
Hydrothermal synthesis of crystalline Aluminium(III)-Tartrate: effect of tartrate type and molar ratio Yuniar Ponco Prananto; Danar Purwonugroho; M. Naufal Tsaqif Dzakwan; Tutik Setianingsih; Nidatul Syarifah
Acta Chimica Asiana Vol. 8 No. 1 (2025)
Publisher : The Indonesian Chemical Society, Chapter Nusa Tenggara and The University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/aca.v8i1.244

Abstract

Aluminium(III)-tartrate (Al-T) complex is a compound that commonly used as mordent in textile dyeing. This complex is soluble in hot water; thus, information on the isolation of crystallised Al-T is limited. Isolation of crystallised Al-T is needed to gain a high purity complex for further application in the textile industry. This study aims to synthesize and isolate crystalline complex of Al-T. Hydrothermal method was used to obtain the targeted complex. Effects of tartrate precursor and Al(III):tartrate mol ratio in the synthesis of Al-T complex were also investigated. The synthesis was done at 150 °C for 24 hours in several Al(III):tartrate mol ratios (1:2, 2:1, and 2:3) using two different tartrate precursors, namely L-tartaric acid and KNa-tartrate. The synthesized complexes were identified by infrared spectroscopy and powder-XRD analyses, and then further characterised by UV Vis - DRS, DTA-TGA, and SEM. Experimental data shows that the mol ratio affects the precipitation of the Al-T complex, in which a white crystalline solid was only precipitated out from the 2:1 reaction by both tartrate precursors. Different tartrate precursors used in the synthesis may alter the crystallization and result in an Al-T complex with slightly different thermal decomposition profile, UV-Vis DRS spectra profile, and different yield due to the different nature of the tartrate precursor. This finding is expected to support the possibility of Al-T mass production as mordent in textile dyeing
Co-Authors Adhinanda, Arrival Arsyad Adi Kurnia Soesantyo Adiba, Naila Azmi Afif Eka Rahma Setiyanto Agustina, Laily Aulia Ahmad Syarwani Andi Nafis An Naafi Andri Risdianto Andri Risdianto Ani Mulyasuryani Arie Srihardyastutie Ariesta, Muhammad Naufal Atsuhiko Isobe Choi, Jonghyun Danar Purwonugroho Danar Purwonugroho Danar Purwonugroho Danar Purwonugroho Danar Purwonugroho Danu Setia Wardana Darjito Darjito Darjito Defri Yona Degirmenci, Volkan Diana Ningrum, Diana Dias Satria Dini Tri Wahyuni Dini Tri Wahyuni Dyah Ajeng Pitaloka Efiria Riskah Efiria Riskah Elvian Eka Krisnaniningrum Evitantri, Mangesti Reza Fanny Prasetia Faustina De Yesu Prisila Abi Febriani, Rakhma Finisia, Yenni Firsta Luthfiani Salsabila Fuad, M.Arif Zainul Grafist, Therra Raditya Hadi Nur Hadi Nur Karti'a, Galuh Wahyu Kashifa Maria Jihan Lai, Sin Yuan Ledhyane Ika Harlyan M. Naufal Tsaqif Dzakwan Mangesti Reza Evitantri Mochamad Arif Zainul Fuas Mochamad Nurcholis Mohammad Misbah Khunur Mohammad Misbah Khunur Mohammad Misbah Khunur Mohammad Misbah Khunur Muhammad Misbah Khunur Mukhamad Nurhadi, Mukhamad Naila Azmi Adiba Nazarudin Nidatul Syarifah Qonitah Fardiyah Rachmat Tjahjanto Rachmat Triandi Tjahjanto Radiansyah, Muhamad Agus Rafi Dwiasis Wibisono Rahmadani, Agung Rizky Arief Shobirin Rizky Arief Shobirin Rosmawati, Angelina Sasti Gona Fadhilah Silvi Zakiyatul Ilmiyah Sin Yuan Lai Siti Mutrofin Siti Mutrofin Soerja Koesnarpadi Sri Wardhani Suyono, Suyono Syarifah, Nidatul Taufiq, Muhammad Arif Teguh Wirawan Teguh Wirawan, Teguh Tutik Setianingsih Tutik Setianingsih Wenny Bekti Sunarharum Wirhanuddin, Wirhanuddin Yeni Dwi Lestari Yenni Finisia Yofandi, Muhammad Farrel Yoga Rizky Nata Yoga Rizky Nata Yogi Rifki Wijayanto Zhiying Zhu