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All Journal Jurnal Pengolahan Hasil Perikanan Indonesia Indonesian Journal of Chemistry Walisongo Journal of Chemistry Musamus Fisheries and Marine Journal Jurnal Kolaboratif Sains INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY JatiRenov: Jurnal Aplikasi Teknologi Rekayasa dan Inovasi JURNAL RISET DIWA BAHARI Jurnal Perikanan Indonesian Journal of Coastal and Marine Studies Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) MARFIG: Journal of Fisheries and Marine Resource Management
Tri Widayati Putri
Department Of Fishery Technology, Institute Of Technology And Business Maritime Balik Diwa, Makassar, South Sulawesi, Indonesia
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Analisis Kimia Telur Ikan Tuna Mata Besar (Thunnus obesus) dari Berbagai Tingkat Kematangan Gonad Tri Widayati Putri; Nurulhikmah Kamaruddin; Zul Khairiyah
Jurnal Riset Diwa Bahari (JRDB) Volume 3, Issue 1, 2025
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63249/jrdb.v3i1.39

Abstract

Bigeye tuna (Thunnus obesus) is a type of large pelagic fish belonging to the Scombriade family that can spawn repeatedly during the spawning season. Bigeye tuna eggs have several phases of gonad maturity, including gonad maturity level IV and gonad maturity level V. This study aims to determine the chemical composition and mineral composition of bigeye tuna eggs (Thunnus obesus) from two levels of gonad maturity, namely gonad maturity level IV and gonad maturity level V. The parameters analyzed were water content, ash content, protein content, fat content, iron and zinc with three repetitions for each parameter. This study was conducted from June to August 2024. Sampling was carried out at two different locations with samples in the form of bigeye tuna eggs (Thunnus obesus). The results of the study showed that bigeye tuna eggs from gonad maturity level IV had a water content of 69.94%, ash content of 4.04%, protein content of 20.43%, fat content of 0.94%, iron content of 34.42% and zinc content of 142.58%. While the gonad maturity level V had a water content of 72.01%, ash content of 3.22%, protein content of 19.82%, fat content of 1.55%, iron content of 14.83% and zinc content of 172.50%. Based on the statistical results, it showed that bigeye tuna eggs had significant differences (significantly different) in water content, ash content, protein, fat, iron and zinc at two gonad maturity levels IV and gonad maturity level V.
Karakteristik Mekanik Selulosa Dari Rumput Laut Kappaphycus alvarezii di Kabupaten Takalar Tri Widayati Putri; Reski Ardini Yusra; Awaluddin Awaluddin
Jurnal Riset Diwa Bahari (JRDB) Volume 3, Issue 1, 2025
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63249/jrdb.v3i1.71

Abstract

Kandungan selulosa dan karakteristik mekanik selulosa dalam menentukan kelayakan rumput laut sebagai bahan baku biomaterial ramah lingkungan, selain sifat fisikokimia selulosa diperlukan untuk menunjang pemanfaatan limbah rumput laut secara optimal. Sehubungan dengan hal tersebut, penelitian ini bertujuan untuk menganalisis kadar dan karakteristik mekanik selulosa dari rumput laut Kappaphycus alvarezii yang berasal dari Kabupaten Takalar. Penelitian ini dilaksanakan dari bulan September hingga Januari 2025 di Makassar, dengan menggunakan pendekatan deskriptif melalui metode kualitatif. Hasil penelitian menunjukkan bahwa kadar selulosa meningkat dari 12,31% pada sampel mentah menjadi 20,04% setelah proses ekstraksi. Analisis FTIR mengidentifikasi gugus fungsi khas selulosa seperti –OH, C=O, dan C–O–C, sementara SEM menunjukkan perubahan morfologi menjadi lebih berpori dan homogen setelah perlakuan kimia. Temuan ini mengindikasikan bahwa Kappaphycus alvarezii berpotensi tinggi sebagai sumber bahan selulosa yang dapat dikembangkan untuk keperluan bioplastik atau biomaterial lainnya.
Co-Authors A Virati Syamda Abdul Karim Abdul Wahid Wahab Abubakar, Andi Nur Fitriani Adriani Adriani Agus Darmawan Ahmad Fudhail  Majid Ahyar Ahmad Andi Fahri Faisal Angreni, Husni Annisa Wahdani Arfiani Nur Arfiani Nur Ariansyah Ariansyah Arie Hijriyah Aryanti Susilowati Aryanto, Reza Audrey Zahra Awaluddin Awaluddin Bismirahma Abbas Burhanuddinnur, Muhammad Dafiuddin Salim Eid Abdalrazaq Elfrida Ratnawati Fadliah Fadliah Fadliah, Fadliah Fadliah, Fadliah Fadly Yashari Soumena Ghanima Yasmaniar Harianti Harianti Harningsih Karim Hasri Hasri Iin Octaviana Hutagaol Ilham Indah Raya Indah Raya Indah Raya Iramayosopa, Iramayosopa Jawiana Saokani Jawiana Saokani Sofyan Jawiana Saokani Sofyan Jawiana Saokani Sofyan Sofyan Khairiyah, Zul Maming Gaffar, Maming Mansur, Harianti Mardiana Muhammad Burhannudinnur Muhammad Ikbal Munadi, Rachmin Mutemainna Karim Nur Fajriani Nursida Nur Hikma Nuraeni L Rapi Nurmaida Nurmaida Nursyahran, Nursyahran Nurul Khumairah Nurul Safirahmawadda Nurulhikmah Kamaruddin Palit, Christin Paulina Taba Paulina Taba Reski Ardini Yusra Ridha Husla Ridwan, Irham Pratama Riskawati Riskawati Samsuddin Shivaa Prasad Kollur Sri Wulandari Subandrio Sufyaningsi, Ulfa Sugihastira Sugihastira Sukmatica Slamet Sulistiani Jarre Sulistiani Jarre Syahruddin Kasim Wiwin Anggriani Yasser, M Zhaleha Zhaleha Ziana Karmila Zul Khairiyah Zul Khairiyah