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Wulandari, Ni Made Widya
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Health Professions Medicine & Pharmacology Public Health

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Bioaktivitas dan Identifikasi Molekuler Jamur yang Diisolasi dari Sedimen di Pantai Amed dan Tulamben Wulandari, Ni Made Widya; Dwijayanti, Ni Kadek; Putri, Ni Putu Ananda Eka; Putra, I Putu Yogi Astara; Leliqia, Ni Putu Eka; Wibowo, Joko Tri; Dwija, Ida Bagus Nyoman Putra; Ariantari, Ni Putu
Jurnal Ilmiah Medicamento Vol 11 No 1 (2025): Jurnal Ilmiah Medicamento
Publisher : Fakultas Farmasi Universitas Mahasaraswati Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36733/medicamento.v11i1.10745

Abstract

Marine fungi have demonstrated the ability to produce promising new bioactive compounds. This study aims to isolate fungi from the marine sediments collected from Amed and Tulamben Beaches, Bali, Indonesia and investigate the bioactivity of the fungal extracts. Following fungal isolation, pure isolates were obtained and fermented on rice media containing salt and without salt. Next, secondary metabolites were extracted with ethyl acetate, then separated by liquid-liquid extraction using methanol containing 10% water and n-hexane. The resulting MeOH extracts were analyzed for their phytochemical content and tested for their antimicrobial and antioxidant activities using the disc diffusion and 2,2-diphenyl-1-picrylhydrazyl (DPPH) method, respectively. In total, three fungal isolates were obtained. Molecular identification from the Internal Transcribed Spacer (ITS) region of the isolates showed the closest relationship to Aspergillus sp., Aspergillus tamarii, and Trichoderma sp. Phytochemical analysis showed all fungal extracts contained alkaloids and polyphenols. Moreover, extract from Trichoderma sp. SED-TU (1) (NS) inhibited Staphylococcus aureus, Staphylococcus epidermidis, and Streptococcus mutans with inhibition zone diameters of 4.69±0.16; 3.51±0.01, and 3.49±0.25 mm, respectively. Extract from Aspergillus tamarii RM-S-SED-AM (S) inhibited Candida albicans with an inhibition zone of 7.04±0.22 mm and also had strong antioxidant activity with an IC50 value of 62.00±0.35 µg/mL. This study indicates that fungal isolates from marine sediments have great potential as a source of bioactive natural products.
Aktivitas Antimikroba dan Antioksidan Jamur Laut yang Berasosiasi dengan Spons Pseudoceratina sp. dari Perairan Pantai Amed Adi, I Made Agus Kusuma; Witantri, Ni Komang Diah Eka; Wulandari, Ni Made Widya; Leliqia, Ni Putu Eka; Wirajana, I Nengah; Wibowo, Joko Tri; Ware, Ismail; Ariantari, Ni Putu
Jurnal Ilmiah Medicamento Vol 12 No 1 (2026): Jurnal Ilmiah Medicamento (In progress)
Publisher : Fakultas Farmasi Universitas Mahasaraswati Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36733/medicamento.v12i1.13356

Abstract

Background: Marine fungi are organisms capable of growth and spore production in the marine environment and establishing symbiotic relationships with other marine organisms. Because of their high biochemical diversity, marine fungi are considered a potential source for the discovery of new natural compounds with various biological activities.Objective: This study aims to conduct molecular identification and assess the bioactivity potential of the methanol extract obtained from endophytic fungi associated with the marine sponge Pseudoceratina sp. from the Amed Coastal Waters, Bali.Methods: Eight marine fungi were isolated in this study and identified through molecular biology protocol as Aspergillus tamarii SP-3-1-4, Aspergillus nomiae SP-3-2 (A), Penicillium citrinum SP-3-2-1, Aspergillus protuberus SP-3-2-3, Aspergillus sydowii SP-3-2-4, Aspergillus sydowii RM NS SP-3B, Aspergillus clavatonanicus RM NS SP-3-2 A, and Aspergillus nomiae RM NS SP-3-2 B. The fungi were subsequently fermented on rice media containing salt and/or without salt. In the final stage of fermentation, secondary metabolites were extracted using ethyl acetate, followed by liquid-liquid extraction using methanol containing 10% water and n-hexane. The resulting methanolic extracts were subjected to phytochemical analysis and bioassays.Results: The phytochemical screening results of the methanol extracts showed that all extracts contained alkaloids. Among the tested extracts, the extract obtained from the fermentation of the fungus A. protuberus SP-3-2-3 on rice medium with the addition of salt showed the highest activity against Methicillin-resistant Staphylococcus aureus ATCC 3351 with an inhibition zone diameter of 7.99±0.20 mm. The fungus A. sydowii SP-3-2-4 cultured with and without salt in rice media exhibited the most potent antioxidant capacity, with IC50 values of 37.02±1.12 and 32.48±0.81 µg/mL. Conversely, A. nomiae SP-3-2 (A), fermented without salt, displayed the highest toxicity with an LC50 value of 0.88±0.69 µg/mL.Conclusion: Based on the pharmacological potential of extracts produced by the marine fungi associated with the sponge Pseudoceratina sp. found in the present study, identification of bioactive secondary metabolites and their mode of action is propitious for further investigation.
Co-Authors Adi, I Made Agus Kusuma Ardiana, Made Galu Putra Astuti, Ni Made Widi Dewi, Ni Komang Gita Listyari Dwija, Ida Bagus Nyoman Putra I Nengah Wirajana Joko Tri Wibowo, Joko Tri Kurniadinata, I Putu Bagus Kusuma, I Made Gede Ari Ngedo Reo, Maria Esmeralda Elvira Ni Kadek Dwijayanti Ni Putu Ariantari Ni Putu Eka Leliqia Oktapiani, Ni Ketut Putra, I Gusti Ngurah Trisna Meyana Putra, I Putu Yogi Astara Putra, Putu Nico Januarta Putri, Ni Putu Ananda Eka Ware, Ismail Witantri, Ni Komang Diah Eka