| NIM | L1A022098 |
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| Namamhs | ZURNA MAISYA AWALIA |
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| Judul Artikel | KARAKTERISASI BIOPLASTIK DAN PROFIL METABOLOMIK DARI EKSTRAK Eucheuma denticulatum BERDASARKAN PERBEDAAN MASA PANEN SEBAGAI BIOPRESERVASI PRODUK PERIKANAN |
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| Abstrak (Bhs. Indonesia) | Peningkatan pencemaran plastik dan tantangan impor produk perikanan mendorong pengembangan bioplastik berbasis sumber daya hayati. Penelitian ini bertujuan mengetahui senyawa bioaktif Eucheuma denticulatum serta mengarakterisasi bioplastik sebagai biopreservasi produk perikanan berdasarkan perbedaan masa panen. Sampel dipanen pada hari ke-0/pra-penanaman, 25, 35, 45, kemudian diekstraksi menggunakan Microwave-Assisted Extraction dengan pelarut n-heksana, etil asetat, dan metanol serta profil metabolomik dianalisis menggunakan LC-HRMS. Hasil penelitian mengidentifikasi nodes tertinggi diperoleh masa panen D-25 dan pelarut etil asetat, serta ditemukan enam senyawa bioaktif, yaitu erucamide, AC1L1X1Z, cholecalciferol, pheophorbide A, asperphenamate, dan 13-docosenamide yang berpotensi sebagai agen antibakteri dan plasticizer. Karakterisasi menunjukkan ketebalan tertinggi pada D-0 (±0,16 cm), nilai WAI terendah pada D-45 (714,87%), dan laju biodegradabilitas tertinggi pada D-0 (9,72%). Analisis FTIR mengidentifikasi gugus fungsi O–H, S=O, H–O–H, C–O, C–O–C sebagai karakteristik polimer karagenan. SEM menunjukkan permukaan paling halus pada D-45, sedangkan SEM-EDX mendeteksi unsur dominan C, O, S, Cl, Ca. Nilai tertinggi elastisitas pada D-45 (0,111 ± 0,013 GPa), elongasi D-0 (20,65 ± 10,89%), dan kuat tarik D-35 (6,078 ± 0,544 MPa). Uji sensori ikan tilapia menunjukkan bioplastik D-25 dan D-45 memberikan performa terbaik. Perbedaan masa panen diduga memengaruhi komposisi polisakarida sehingga memengaruhi karakteristik bioplastik. |
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| Abtrak (Bhs. Inggris) | Rising plastic pollution and challenges regarding fishery product imports have driven the development of bio-based bioplastics. This study aimed to identify the bioactive compounds of Eucheuma denticulatum and characterize the resulting bioplastics intended for the biopreservation of fishery products based on different harvest times. Samples were harvested at day 0/pre-planting and days 25, 35, and 45; extracts were obtained via Microwave-Assisted Extraction using n-hexane, ethyl acetate, and methanol, while metabolomic profiles were analyzed using LC-HRMS. Results showed the highest node values were obtained at the D-25 harvest time using ethyl acetate; six bioactive compounds were identified erucamide, AC1L1X1Z, cholecalciferol, pheophorbide A, asperphenamate, and 13-docosenamide which show potential as antibacterial agents and plasticizers. Characterization revealed the greatest thickness at D-0 (±0.16 cm), the lowest Water Absorption Index (WAI) at D-45 (714.87%), and the highest biodegradability rate at D-0 (9.72%). FTIR analysis identified O–H, S=O, H–O–H, C–O, C–O–C functional groups characteristic of carrageenan polymers. SEM imaging showed the smoothest surface at D-45, while SEM-EDX detected dominant elements: C, O, S, Cl, Ca. The highest values were observed for elasticity at D-45 (0.111 ± 0.013 GPa), elongation at D-0 (20.65 ± 10.89%), and tensile strength at D-35 (6.078 ± 0.544 MPa). Sensory testing on tilapia indicated that bioplastics from the D-25 and D-45 harvests performed best. Variations in harvest time are believed to influence polysaccharide composition, thereby affecting the characteristics of the bioplastics. |
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| Kata kunci | Bioplastik, Biopreservasi, Eucheuma denticulatum, Karakterisasi, Profil Metabolomik |
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| Pembimbing 1 | Prof. Dr. Maria Dyah Nur Meinita, S.Pi., M.Sc. |
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| Pembimbing 2 | Dr. rer. nat. Riyanti, S.T., M. Biotech. |
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| Pembimbing 3 | |
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| Tahun | 2026 |
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| Jumlah Halaman | 127 |
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| Tgl. Entri | 2026-08-08 20:16:18.335765 |
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