Article Per Year (5 Year)
p-Index From 2020 - 2025
1.203
P-Index
This Author published in this journals
All Journal Jurnal Pasir Laut Sabda: Jurnal Kajian Kebudayaan Science and Technology Indonesia Journal of Science and Applicative Technology Jurnal Pembelajaran dan Biologi Nukleus BioEksakta : Jurnal Ilmiah Biologi Unsoed
Asagabaldan, Meezan Ardhanu
Department Of Marine Environmental Science, Institut Teknologi Sumatera, South Lampung, Indonesia 35365
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Physics Veterinary

Published : 7 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 7 Documents
Search

 1 
HUKUM DAN PERAN LILIFUK DI TENGAH REZIM PEMERINTAHAN: ANALISIS HUKUM DAN KEBERLANJUTAN KEARIFAN LOKAL DI DESA KUANHEUN, KABUPATEN KUPANG BARAT, NUSA TENGGARA TIMUR Asagabaldan, Meezan Ardhanu
Sabda: Jurnal Kajian Kebudayaan Vol 12, No 2: 2017
Publisher : Fakultas Ilmu Budaya Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (366.458 KB) | DOI: 10.14710/sabda.12.2.136-145

Abstract

The main objective of the management of coastal areas and marine resources is preserving resources and improving the welfare in coastal areas and small islands. The Ecological, social and cultural rights of local communities are the foundation for management of sustainable resource. Lilifuk is one of the local wisdoms in, West Kupang, with the aim is to support the conservation of coastal and marine. The main income of Lilifuk is fish catch such as lada/Beronang (Siganus spp.), Alu-alu/barracuda (Sphyranidae), grouper (Ephinephelus), and Peperek (Leigonathidae). Lilifuk has some beneficial thing for economical, social, and environmental aspects. Local communities that are involved, either directly or indirectly, make a significant contribution in keeping the existence of Lilifuk.
POTENSI BAKTERI ASOSIASI TUNIKATA SEBAGAI PENGHASIL SENYAWA ANTIBAKTERI GUNA MENGHAMBAT PERTUMBUHAN BAKTERI MULTIDRUG RESISTANT Diah Ayuningrum; Rhesi Kristiana; Meezan Ardhanu Asagabaldan
Jurnal Pasir Laut Vol 4, No 2 (2020): September
Publisher : Master Program of Aquatic Resources Management, Department of Aquatic Resources, Undip

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (756.148 KB) | DOI: 10.14710/jpl.2020.32807

Abstract

Tunikata atau ascidian merupakan invertebrata laut yang hidup di kedalaman lebih dari 2 meter, sesil, soliter maupun berkoloni dan hidup sebagai filter feeder seperti sponge. Cara hidup seperti ini memungkinkan masuknya mikroorganisme seperti bakteri ke dalam tubuh tunikata melalui branchial siphon-nya. Bakteri yang hidup bersama dengan tunikata ini disebut dengan bakteri asosiasi. Tujuan penelitian ini adalah untuk mengisolasi bakteri asosiasi dari tunikata, mempurifikasi jumlah isolat bakteri asosiasi tunikata dan melakukan skrining antibakteri dari bakteri asosiasi tunikata terhadap bakteri multidrug resistant (MDR). Metode penelitian yang digunakan adalah deskriptif eksploratif, dimana teknik sampling yang digunakan adalah purposive random sampling. Isolasi bakteri asosiasi tunikata menggunakan metode sebar (spread plate), sedangkan purifikasinya menggunakan metode gores (streak plate). Uji antibakteri menggunakan metode overlay. Hasil penelitian menunjukan dari total dua sampel tunikata, diperoleh sebanyak 12 isolat murni bakteri asosiasi tunikata. Hasil skrining menunjukkan 33% persen isolat bakteri asosiasi tunikata berpotensi menghambat pertumbuhan bakteri MDR Acinetobacter baumanni, MRSA, Enterobacter cloacae complex dan Staphilococcus hemolyticus. Dengan demikian dapat disimpulkan bahwa, bakteri asosiasi tunikata berpotensi untuk dijadikan sebagai sumber senyawa aktif antibakteri MDR.
First Record of Epizoic Diatom Presence on Poricellaria ratoniensis (Bryozoa, Cheilostomata) from Java Sea, Indonesia Meezan Ardhanu Asagabaldan; Rhesi Kristiana; Diah Ayuningrum; Adib Mustofa; Ika Agus Rini
Journal of Science and Applicative Technology Vol 7 No 1 (2023): Journal of Science and Applicative Technology June Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35472/jsat.v7i1.1319

Abstract

Indonesian waters cover a high diversity of marine organisms (micros- and macros-) of interest to scientists. Among this diversity, the neglected bryozoan had been scarcely reported due to lack of information from this area, especially on the epizoic diatoms since they are favorable as their dietary. This preliminary study aimed to investigate and witness the presence of epizoic diatom on bryozoan Poricellaria ratoniensis. Our data revealed an assemblage of diatoms attached to bryozoan surfaces and exhibiting taxonomic diversity. In total, members of five genera Amphora, Cocconeis, Neodetonia, Staurophora, and Thalassiosira were found, including the measurement of their cell size, respectively. The attached diatoms were mainly within the bryozoan operculum (op) range, functioning as feeding organs. However, further study is needed to understand the interaction between bryozoan and diatoms aiming for ecological services.
Effect of Calcination Temperature on the Adsorption Performance of Tanggamus Natural Zeolite for Ammonium Removal from Shrimp Pond Wastewater Al Qadri, Latif; Abelta, Gita Aldira; Febrina, Melany; Rajak, Abdul; Maulana, Sena; Asagabaldan, Meezan Ardhanu; Taher, Tarmizi
Science and Technology Indonesia Vol. 9 No. 1 (2024): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2024.9.1.198-206

Abstract

This research explores the potential of locally sourced natural zeolite from the Tanggamus District, Indonesia, for the removal of ammonium from shrimp pond wastewater. The study utilizes a comprehensive approach involving desilication modification, batch adsorption experiments, and field-scale application. The zeolite, predominantly composed of clinoptilolite, undergoes calcination at varying temperatures, with 200°C proving to be optimal for enhancing ammonium adsorption capacity. The study also highlights the efficient use of zeolite at a lower dosage of 5 g/L, yielding high removal efficiency. The real-world effectiveness of this method was confirmed by field experiments, where the application of calcined zeolite resulted in lower ammonium concentrations in shrimp ponds. The results demonstrate that the application method, specifically direct spreading in the ponds, affects adsorption performance. These findings underscore the potential of using Tanggamus Natural Zeolite as a cost-effective and eco-friendly solution for ammonium control in shrimp pond wastewater. This work paves the way for future research focusing on the long-term application effects and zeolite regeneration methods to further improve the economic and environmental efficiency of this approach.
Enhanced Ammonium Adsorption from Aqueous Solutions Using Ethylenediaminetetraacetic Acid (EDTA) Modified Lampung (Indonesia) Natural Zeolite: Isotherm, Kinetic, and Thermodynamic Studies Abelta, Gita Aldira; Al Qadri, Latif; Febrina, Melany; Rajak, Abdul; Maulana, Sena; Asagabaldan, Meezan Ardhanu; Taher, Tarmizi
Science and Technology Indonesia Vol. 9 No. 2 (2024): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2024.9.2.224-234

Abstract

The environmental concern related to excessive ammonium in water bodies necessitates efficient and cost-effective removal techniques. This study investigated the modification of natural zeolite collected from the Tanggamus district of Lampung Province, Indonesia, with ethylenediaminetetraacetic acid (EDTA) to enhance its performance for ammonium adsorption from aqueous solution. The modified and natural zeolites were characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), N2 adsorption-desorption isotherm, and scanning electron microscopy (SEM). Results indicated that the modification did not cause significant structural changes but increased the mesoporosity of the zeolites, which was beneficial for ammonium adsorption. The adsorption studies revealed that the EDTA modified zeolites consistently outperformed the natural zeolite and that the adsorption process was exothermic in nature. The Langmuir and Freundlich isotherm models fit the adsorption data well, indicating that the adsorption process occurs on both homogenous and heterogeneous surfaces. Thermodynamic studies confirmed that the adsorption process was exothermic and that the EDTA modification increased the spontaneity of the ammonium adsorption process. Overall, this study highlights the potential of EDTA-modified zeolites as an effective material for ammonium removal from aqueous solutions.
Isolasi dan Karakterisasi Bakteri Termofililk Penghasil Enzim Protease Asal Sumber Air Panas Way Belerang, Lampung Suryanti, Aulia Putri; Suryanti, Erma; Asagabaldan, Meezan Ardhanu
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 7 No 3 (2025): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2025.7.3.16255

Abstract

Protease merupakan enzim yang menghidrolisis ikatan peptida pada protein. Enzim ini biasa dimanfaatkan dalam industri pangan, pertanian, medis hingga membantu dalam proses pencernaan. Pencarian enzim protease dari bakteri diperlukan terutama bakteri yang memiliki ketahanan terhadap suhu tinggi, seperti bakteri termofilik. Bakteri termofilik dapat hidup pada suhu diatas 45ºC dan dapat hidup optimal pada suhu antara 50ºC-65ºC. Bakteri termofilik dapat diperoleh salah satunya dari Sumber Air Panas Way Belerang yang terletak di Kalianda, Lampung Selatan. Penelitian ini memiliki tujuan untuk mengisolasi bakteri termofilik asal Sumber Air Panas Way Belerang, mengkarakterisasi bakteri termofilik penghasil enzim protease, serta menguji aktivitas enzim protease secara kualitatif dan kuantitatif dari bakteri termofilik asal pemandian air panas Way Belerang. Metode penelitian ini terdiri atas isolasi sampel bakteri dari sedimen dan air dari Way Belerang, uji kualitatif enzim protease bakteri termofilik, karakterisasi makroskopik dan mikroskopik bakteri penghasil enzim protease, kurva pertumbuhan bakteri, pengujian aktivitas enzim protease secara kuantitatif, serta analisis data. Hasil penelitian diperoleh 26 isolat bakteri hasil isolasi dari Sumber Air Panas Way Belerang yang diperoleh dari sampel air dan sedimen. Isolat tersebut diujikan aktivitas protease secara kualitatif dan kuantitatif. Secara kualitatif diperoleh 11 dari 26 isolat yang terdapat aktivitas proteolitik pada pengujian di suhu 53 oC dan pada media NA + 1 % skim milk powder. Isolat S5.1 memiliki Indeks proteolitik tertinggi sebesar 3.59 yang ditandai dengan adantyz zona bening di sekitar koloni bakteri pada media media NA + 1 % skim milk powder. Aktivitas protease secara kuantitatif sebesar 0.0204 unit/ml pada suhu 53 oC Karakterisasi morfologi menunjukkan bakteri A9.5 adalah Gram positip. Bakteri termofilik S5.1 berpotensi sebagai penghasil enzim protease dan perlu dikarakterisasi lebih lanjut aktivitasnya dengan variasi pH dan suhu untuk mendapatkan aktivitas enzim yang optimal untuk aplikasi industri yang memerlukan enzim termostabil. Kata kunci : Bakteri termofililk, enzim protease, Sumber air panas Way Belerang
The Cellulase Enzyme Activity of Thermophilic Bacteria from Way Belerang Hot Spring, Lampung Hidayah, Rismawati; Suryanti, Erma; Asagabaldan, Meezan Ardhanu; Prasetyo, Budhi Agung
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 3: Jurnal Pembelajaran Dan Biologi Nukleus September 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i3.7493

Abstract

Background: The demand for cellulase enzymes across various industries continues to rise, while most of the current supply still depends on imports. Therefore, exploring local biological resources, such as thermophilic bacteria capable of producing cellulase, is crucial. This study aims to isolate and evaluate the cellulase enzyme activity of thermophilic bacteria from the Way Belerang Hot Spring in South Lampung, Indonesia. Methodology: The research involved isolating bacteria from hot spring water samples, conducting qualitative and quantitative assays of cellulase activity, and characterizing the isolates. Findings: A total of 24 bacterial isolates were obtained, 16 of which demonstrated cellulolytic activity, as indicated by clear zones on 1% CMC agar. The two most promising isolates, S5.1 and S5.24, exhibited the highest cellulolytic indices of 2.728 and 2.395, respectively. These isolates were further tested quantitatively using a glucose standard curve to determine their enzyme activity. The highest cellulase activity for isolate S5.1 was recorded at the 10th hour with 5.1 × 10⁻² U/mL, while isolate S5.24 showed peak activity at the 14th hour with 3.1 × 10⁻² U/mL. Contribution: This study represents the first investigation of thermophilic amylase-producing bacteria from the Way Belerang Hot Spring, highlighting the potential of thermostable amylase enzymes that can withstand high temperatures for future industrial applications.
Co-Authors Abelta, Gita Aldira Adib Mustofa Al Qadri, Latif Budhi Agung Prasetyo Diah Ayuningrum Diah Ayuningrum Febrina, Melany Hidayah, Rismawati Ika Agus Rini Maulana, Sena Rajak, Abdul Rhesi Kristiana Rhesi Kristiana Suryanti, Aulia Putri Suryanti, Erma Tarmizi Taher