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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Kelautan Tropis JFMR (Journal of Fisheries and Marine Research) Jurnal Abdi Insani

Mila Safitri Rizfa

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Author-ID : 1434851

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics

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Articles

Oral Administration of Alginate Oligosaccharide from Padina sp. Enhances Tolerance of Oxygen Exposure Stress in Zebrafish (Danio rerio) Ervia Yudiati; Rustadi Rustadi; Fanny Iriany Ginzel; Jelita Rahma Hidayati; Mila Safitri Rizfa; Nuril Azhar; Muhammad Salauddin Ramadhan Djarod; Eny Heriyati; Rabia Alghazeer
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 25, No 1 (2020): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Alginate is rich in bioactive compounds and has been known to act as a stimulator on the innate immune system. The objective of this study is to determine polysaccharide and oligosaccharide alginate yield, that percentage inhibition with a different type of extraction, to evaluate growth performance as well as immune response by oxygen stress tolerance. Thermal heating with oven laboratory at 140oC for 4.5 hr was done to breakdown the polysaccharide into oligosaccharide. The extraction was conducted by maceration, filtration, precipitation, and centrifugation. Factorial design with two factors was implemented to 260 Zebrafish and reared in thirteen aquariums (20 fish per aquarium) for 12 days. Zebrafish was fed at different dose (4.0g; 6.0g; 8.0g.kg-1) and different type of extraction [noEDTA/noKCl; KCl; EDTA and (EDTAandKCl)]. The evaluation of radical scavenging activity was done spectrophotometrically at 515 nm. Results showed that the highest alginate yield either polysaccharide or oligosaccharide was gained from KCL treatments, percentage inhibition (82.61%), growth performance as well as tolerance of stress (P<0.05). The best growth performance was reached in oligosaccharide supplementation at 6.0g.kg-1 treatment. It can be concluded that alginate oliogosaccharide produced by thermal heating enhanced the antioxidant activity, boost the fish’s immune system, proofed by better growth performance and more tolerant to the low oxygen stress.

Improving The Antioxidant Activity of Sodium Alginate from Sargassum sp. by Thermal Heating and Chemical Methods Mila Safitri Rizfa; Ervia Yudiati; Diah Permata Wijayanti
Jurnal Kelautan Tropis Vol 23, No 3 (2020): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v23i3.8946

The relationship between molecular structure and bioactivity was evaluated for sodium alginates obtained under different degradation treatment (raw alginates, heat-treated, and chemical-treated) from Sargassum sp. This study was conducted to identify the antioxidant activities of the degraded sodium alginate from Sargassum sp. compared to raw extract. Raw alginate as the control treatment was dried overnight at 60 °C, while heat-treated was heated raw alginate at 140oC in a laboratory oven (4.5 hours). Two chemical-treated were applied. Raw alginate added hydrogen peroxide and raw alginat with hydrogen peroxide plus ascorbic acid. This treatments were replicated three times. All the parameters were evaluated spectrophotometrically. The spectroscopy results from the degradation methods showed a new absorbance spectra pattern. The FT-IR spectrum revealed that treatment affects the structure of the alginates. Heat treated and chemical treated sodium alginates showed non significantly different on DPPH radical scavenging activity. Meanwhile, the combination of alginate and hydrogen peroxide treatment was at the lowest scavenging ability. Therefore, alginate oligosaccharides (AOS) produced by heating or adding chemical reagents could be considered as a stronger antioxidant than raw alginate, which may be applied in the industry and biomedical

POTENSI ANTIOKSIDAN DAN SKRINING FITOKIMIA EKSTRAK DAUN MANGROVE Rhizophora mucronata, PILANG PROBOLINGGO Rarasrum Dyah Kasitowati; Ade Yamindago; Mila Safitri
JFMR (Journal of Fisheries and Marine Research) Vol 1, No 2 (2017): JFMR VOL 1 NO 2
Publisher : JFMR (Journal of Fisheries and Marine Research)

The objective of this study was to find out the antioxidant activities along with phytochemical screening of R. mucronata leaf extracts. R. mucronata leaves were collected from Pilang, Probolinggo. The extraction use three different solvents with different polarity (Methanol, Ethyl acetate, and Hexane). The antioxidant activities were determinted by the Diphenyl picryhydrazil (DPPH) metode used four different concentrations (31,25; 62,25; 125; and 250 ppm). The antioxidant analysis of mangrove R. mucronata showed that the ethyl acetate extract has the highest antioxidant activity (160,417 µg/ml) than the methanol (-117,498 µg/ml) and the hexane (327,611 µg/ml) extracts. The phytochemical screening results that the methanol extract contains 1195 µg/ml flavonoid compounds, 124,44 µg/ml alkaloid compounds and 576,64 µg/ml of tannin compounds. Meanwhile the ethyl and the hexane extract contains alkaloid compounds (44,91 µg/ml and 41,49 µg/ml ) and tannin compounds (84,84 µg/ml and 67,30 µg/ml).

PENINGKATAN LITERASI KELAUTAN DAN PERIKANAN MELALUI EDUKASI DAN KREASI BAGI ANAK-ANAK DI YAYASAN RUMAH HARAPAN BANJARMASIN Rizfa, Mila Safitri; Rachman, Sitti Hardiyanti; Nugraha, Arisya Fitri; Haryanti, Rinrin; Sukardi, Sudirman; Umam, Hairul; Aswin, Aswin; Yusuf, Bahruddin
Jurnal Abdi Insani Vol 12 No 5 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i5.2503

Literasi merupakan keterampilan yang dibutuhkan dalam kehidupan sehari-hari yang dapat dikembangkan melalui proses pembelajaran berkelanjutan dan stimulasi sejak usia dini. Pada konteks kelautan dan perikanan, literasi menjadi aspek penting untuk menumbuhkan kesadaran akan keberlanjutan ekosistem laut, terutama bagi generasi muda. Oleh karena itu, kegiatan pengabdian ini bertujuan untuk meningkatkan literasi kelautan dan perikanan pada anak-anak di Yayasan Rumah Harapan Banjarmasin cabang Kilometer 1 melalui pendekatan edukasi dan kreasi. Kegiatan di Banjarmasin melibatkan anak-anak usia 5-12 tahun. Metode yang digunakan meliputi pemberian materi, wawancara, observasi, permainan edukatif, mewarnai, dan pre/post test. Evaluasi dilakukan dengan analisis deskriptif kualitatif melalui wawancara mendalam dan kuisioner.. Kegiatan pengabdian di Yayasan Rumah Harapan cabang Kilometer 1 Banjarmasin berhasil meningkatkan literasi kelautan dan perikanan anak-anak. Hasil pre dan post test menunjukkan peningkatan signifikan, terutama pada kelompok usia 9–12 tahun, dari rata-rata 60 menjadi 80. Anak-anak usia 4–6 tahun juga menunjukkan peningkatan pemahaman. Selain itu, observasi saat kegiatan memperlihatkan antusiasme tinggi, diskusi aktif, dan kesadaran akan pentingnya menjaga laut. Program ini efektif membangun fondasi awal pengetahuan maritim yang penting bagi generasi muda pesisir. Kesimpulannya, metode edukatif berbasis interaktif dan kreatif terbukti efektif dalam menanamkan kesadaran serta meningkatkan literasi kelautan pada anak-anak sejak usia dini. Kegiatan ini efektif meningkatkan literasi dan kesadaran anak-anak tentang pentingnya menjaga laut, dibuktikan dengan hasil post test meningkat.

PENANAMAN MANGROVE (Rhizophora apiculata) UNTUK PENCEGAHAN ABRASI DI PANTAI ANGSANA, TANAH BUMBU Prastiyo, Riko; Putri, Humaira; Hutapea, Sarah Ryka Ully; S, Daniel Fredianto; Setiawati, Mariani; Pratama, Rangga Fadhil; Zahrah, Munasyifa Aulia; Prayoga, Muhammad Shafa; Ramadhan, Khalista; Kristin, Meli; Nazmi, Muhammad Fiqrian; Rizfa, Mila Safitri
Jurnal Abdi Insani Vol 12 No 11 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i11.2989

The mangrove planting activity in Angsana Village, Angsana District, Tanah Bumbu Regency was carried out to prevent coastal abrasion and preserve the coastal ecosystem. This program was implemented as part of a community service initiative by the Universitas Lambung Mangkurat student community service program (KKN), in collaboration with the village government, local agencies, private companies, and local residents, through the planting of 300 Rhizophora apiculata seedlings in the estuarine coastal area. The activity method included direct observation at the planting site to identify the physical condition of the coast and assess land suitability for mangrove growth. The program was followed by direct planting of Rhizophora apiculata seedlings involving students and local communities as a form of active participation. The results showed an increase in community awareness and concern for the importance of mangrove ecosystems in preventing coastal abrasion. Cross-sectoral participation from academia, local government, and the community further strengthened the sustainability of the rehabilitation program. The planting activity also provided students with hands-on educational experience in applying scientific knowledge in practice. Furthermore, the developed mangrove area has the potential to serve as an educational ecotourism site that supports coastal community empowerment. Thus, this activity not only contributes to the sustainability of coastal ecosystems but also opens opportunities for environmentally oriented management focused on conservation and community welfare improvement.

Co-Authors Ade Yamindago Aswin Aswin Bahruddin Yusuf Diah Permata Wijayanti Eny Heriyati Ervia Yudiati Fanny Iriany Ginzel haryanti, rinrin Hutapea, Sarah Ryka Ully Jelita Rahma Hidayati Kristin, Meli Mariani Setiawati, Mariani Muhammad Salauddin Ramadhan Djarod Nazmi, Muhammad Fiqrian Nugraha, Arisya Fitri Nuril Azhar Prastiyo, Riko Pratama, Rangga Fadhil Prayoga, Muhammad Shafa Putri, Humaira Rabia Alghazeer Rachman, Sitti Hardiyanti Ramadhan, Khalista Rarasrum Dyah Kasitowati Rustadi Rustadi S, Daniel Fredianto Sukardi, Sudirman Umam, Hairul Zahrah, Munasyifa Aulia

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