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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Teknologi Perikanan dan Kelautan Jurnal Pengolahan Hasil Perikanan Indonesia Panrita Abdi - Jurnal Pengabdian pada Masyarakat Habitus Aquatica : Journal of Aquatic Resources and Fisheries Management Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Endang Sunarwati Srimariana
Department Of Marine Science And Technology, Faculty Of Fisheries And Marine Science, IPB University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Engineering Environmental Science Library & Information Science Other

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Toxicity and antibacterial activity of Rhizophora apiculata mangrove using different solvent extraction : Toksisitas dan aktivitas antibakteri mangrove Rhizophora apiculata dengan pelarut ekstraksi yang berbeda Imanditya, Muhammad Fachriza; Ismet, Meutia Samira; Zamani, Neviaty Putri; Natih, Nyoman MN; Srimariana, Endang Sunarwati; Andini, Rita; Anggraini, Nurlita Putri
Jurnal Pengolahan Hasil Perikanan Indonesia Vol. 28 No. 1 (2025): Jurnal Pengolahan Hasil Perikanan Indonesia 28(1)
Publisher : Department of Aquatic Product Technology IPB University in collaboration with Masyarakat Pengolahan Hasil Perikanan Indonesia (MPHPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17844/jphpi.v28i1.60031

Abstract

Rhizophora apiculata merupakan jenis mangrove yang banyak digunakan sebagai obat tradisional. Potensi ini dihasilkan oleh kandungan metabolit sekunder yang dapat dipengaruhi oleh kondisi lingkungan, usia, dan beragam faktor lainnya. Penelitian ini bertujuan untuk menentukan pelarut terbaik ekstrak R. apiculate berdasarkan parameter toksisitas dan antibakteri. R. apiculata yang digunakan dalam penelitian ini berasal dari daerah Kuala Langsa dan Pulau Telaga Tujuh (Aceh Timur), dengan ukuran diameter pohon yang berbeda (2,4; 4,8; 5; 13; 23,3; & 26 cm). Ekstraksi dengan pelarut metanol 99,8% (MeOH) dan etanol 99,9% (EtOH) dilakukan dengan maserasi (3x24 jam), ekstraksi dengan pelarut akuades dilakukan dengan perebusan (15 menit pada suhu 85-90°C). Ekstraksi menggunakan perbandingan 10:1 (v/w) dengan 2 g serbuk simplisia dan 20 mL pelarut. Uji toksisitas dilakukan dengan metode brine shrimp lethality assay dan uji antibakteri menggunakan metode disk diffusion assay. Uji toksisitas menunjukkan ekstrak etanol memiliki nilai toksisitas tertinggi dengan nilai LC50 sebesar 26,879 μg/mL. Ekstrak akuades menghasilkan zona hambat tertinggi dengan nilai 11,37±0,85 mm pada bakteri Escherichia coli dan 17,67±1,19 mm pada bakteri Staphylococcus aureus. Hasil ANOVA dua arah menunjukkan pelarut berpengaruh nyata terhadap zona hambat bakteri (p<0,05), sementara diameter pohon tidak berpengaruh nyata (p<0,05). Ekstrak pelarut etanol menghasilkan nilai toksisitas tertinggi, sedangkan ekstrak pelarut akuades menghasilkan zona hambat terbesar.
Biodegradation activities of microplastic polymers by Agelas conifera sponge-symbiotic bacteria Ismet, Meutia Samira; Srimariana, Endang Sunarwati; Cahyati, Nur Alam Dwi; Anggraini, Nurlita Putri; Simbolon, Lenni Mariana; Cakasana, Nadya; Rafi, Mohamad
Depik Vol 14, No 2 (2025): JUNE 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Research on microplastic (MP) accumulation in marine organisms' tissue have been widely conducted, as well as research on microplastic biodegradation by microbial organisms from the environment.Agelas coniferasponge is proven to accumulate MP in its tissue as well as having bacteria as symbiotic organism. This research aims to screen and study biodegradation activities ofA. coniferasymbiotic bacteria on MP polymers, alsoto identify the species of those bacteria isolates. Bacterial Isolation ofA. coniferasponge tissue was using Zobell 2216E agar media. Screening and biodegradation assay of the bacteria isolates was conducted on Marine Salt Media agar that was added with 0,5 g of MP polymers, using Kroc-Boral method. Diameter of clear (bacterial growth) zone surrounding Kroc-Boral indicated the biodegradation activity of the bacterial isolates. Statistical analysis on the activity was using Two Way ANOVA. Results showed that there were 9 bacterial isolates of 53 that could degrade several MP polymers, with different activities (ANOVA, p value 0.05). High and low-density polymers (Linear- Low Density PolyEthylene/ LLDPE, Polyethylene/PE, and Polyvinyl Chloride/ PVC) were found to be degraded by all 9 isolates. Meanwhile, Polyethylen Taraphtalene (PET) and Polystyrene (PS) only degraded by 8 and 3 isolates, respectively. There are only 5 isolates that have high biodegradation index (1.5) on different polymers, which mostly on PET polymer. Isolate Ac8MP found to be the most bacteria that have degradation index on all polymers more than 1.This research proves that symbiotic bacteria could have a biodegradation mechanism on MP polymers that accumulates by sponge-host. However, further study needs to be done to understand the mechanisms and effectiveness of sponge-bacterial biodegradation activity.
Co-Authors Aditya Hikmat Nugraha Adriani Sunuddin Amigunani, Zahra Wajdini Anggraini, Nurlita Putri Ayuningtias, Astri Az Zahra, Lilyana Beginer Subhan Bernita br Silaban Cahyati, Nur Alam Dwi Dea Fauzia Lestari, Dea Fauzia Erwin Maulana Imanditya, Muhammad Fachriza Indra Jaya Kamini, Qudsi Athiyyah Kautsaharani, Fanasya Kusumastuti, Desi Nurulita Lotaldy, Alnodio M. Rafi Meutia Samira Ismet Mochamad Tri Hartanto Mujizat Kawaroe MUJIZAT KAWAROE Nadya Cakasana NEVIATY PUTRI ZAMANI Ningtyas, Azizah Lutfia Nyoman M N Natih Rastina Rastina RITA ANDINI Riza Aitiando Pasaribu Sari, Anita Edya Melliana Setyaningsih, Wahyu Adi Simbolon, Lenni Mariana Sri Pujiyati Steven Solikin Tumpak Sidabutar Yonatika, Niken Oktaviandini