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All Journal Jurnal Penelitian Pertanian Terapan Fullerene Journal of Chemistry
Nomi, Anastasia Grandivoriana
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Agriculture, Biological Sciences & Forestry Chemistry

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Isolation and Characterization of Dryland Microfungi From Northern Insana as Potential Sources of Antibacterial Agents mere, janrigo klaumegio; Edi, Eduardus; Nomi, Anastasia Grandivoriana
Jurnal Kimia Fullerene Vol 11 No 1: Fullerene Journal Of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v11i1.762

Abstract

Microfungi are one of the most extensively studied groups of microorganisms due to their remarkable ability to produce a diverse range of unique bioactive compounds. This study aimed to explore and characterize microfungi isolated from the drylands of North Insana as potential sources of sustainable antibacterial agents. The research methods included the isolation of microfungi, morphological identification, and evaluation of antibacterial activity using the disc diffusion method. Based on morphological characterization, microfungi isolated from the North Insana dry soil showed similarities to three genera, namely Mucor, Penicillium/Aspergillus, and Aspergillus. Antibacterial assays revealed that all three isolates exhibited varying degrees of activity, ranging from moderate to strong, against Staphylococcus aureus. Isolate 1 produced an inhibition zone of 7.6 ± 0.20 mm (moderate activity), isolate 2 produced 10.17 ± 0.06 mm (strong activity), and isolate 3 produced 10.77 ± 0.06 mm (strong activity). According to the Tukey test (p < 0.05), isolate 3 showed no significant difference from the standard antibiotic chloramphenicol (11.23 ± 0.15 mm), indicating a comparable antibacterial effectiveness. These results suggest that dryland-endemic microfungi possess adaptive biosynthetic capacities, enabling them to produce antibacterial secondary metabolites in response to extreme environmental stress. This potential reinforces the role of dryland microfungi as promising new sources of natural antibacterial compounds for sustainable biotechnological and health applications
Isolasi Selulosa Dari Serat Buah Lontar (Borassus Flabellifer L.) Asal Pulau Timor Serta Aplikasinya Sebagai Bahan Baku Bioplastik Nomi, Anastasia Grandivoriana; Bonnu, Christin Hendriyani; Beno, Marlon Jusan Rinaldy
Jurnal Penelitian Pertanian Terapan Vol 26 No 1 (2026)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v26i1.4813

Abstract

The increasing use of synthetic polymer-based plastics derived from non-renewable resources has caused serious environmental and health problems. Therefore, the development of bioplastics based on natural polymers is considered a sustainable solution. This study aimed to isolate cellulose from lontar fruit fiber (Borassus flabellifer Linn.) and to evaluate its potential application as a raw material for bioplastic production. Lontar fruit fiber was subjected to alkaline treatment using NaOH, followed by bleaching with H₂O₂ and acid hydrolysis using H₂SO₄. The isolated cellulose was characterized in terms of yield, moisture content, and functional group identification using Fourier Transform Infrared (FTIR) spectroscopy. The results showed that the final cellulose yield reached 45.67%, indicating the dominance of the cellulose fraction after significant removal of hemicellulose and partial lignin. FTIR analysis confirmed the presence of characteristic cellulose functional groups, including hydroxyl (–OH), C–H stretching, and β-1,4-glycosidic (C–O–C) bonds, while lignin-related absorption bands were observed with very low intensity. The isolated cellulose was subsequently applied in bioplastic formulation using gelatin and glycerol as plasticizers. The resulting bioplastic exhibited homogeneous appearance, good elasticity, and low brittleness. These findings demonstrate that cellulose derived from lontar fruit fiber has strong potential as an environmentally friendly bioplastic raw material and supports the valorization of local biomass waste from dryland ecosystems.
Co-Authors Beno, Marlon Jusan Rinaldy Bonnu, Christin Hendriyani Edi, Eduardus Mere, Janrigo Klaumegio