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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA Jurnal Kelautan : Indonesian Journal of Marine Science and Technology REKAYASA Jurnal Kelautan Tropis Jurnal Sumberdaya Akuatik Indopasifik Samakia: Jurnal Ilmu Perikanan Jurnal Kelautan Nasional Juvenil: Jurnal Ilmiah Kelautan dan Perikanan
Insafitri, I
Program Studi Ilmu Kelautan, Universitas Trunojoyo Madura
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Environmental Science Immunology & microbiology Library & Information Science Physics Other

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DNA Barcoding dan Filogeni Molekukuler Belangkas Tachypleus (Horseshoe crab) dari Pulau Madura, Jawa Timur, Indonesia Rafsanjani, Deni; Nugraha, Wahyu Andy; Insafitri, Insafitri
Jurnal Sumberdaya Akuatik Indopasifik Vol 8 No 3 (2024): Agustus
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46252/jsai-fpik-unipa.2024.Vol.8.No.3.395

Abstract

Horseshoe crab is a marine animal that is often found in Madura waters. Horseshoe crab is Indonesia's marine biodiversity that has not been widely exploited. This aquatic animal is also called a living fossil, which means it has been alive since ancient times. Information regarding the genetic and phylogenetic structure of Horseshoe crab in the Madura area is still rarely known. Therefore, it is necessary to study to reveal the type of Horseshoe crab using the DNA barcoding method and molecular phylogeny. This research uses COI as a molecular marker, using the PCR method. With DNA barcoding, it only requires very few/small specimens but is able to document the diversity of taxonomic groups that are not yet known or come from areas that have never been identified, and is able to reveal new variations/new diversity in species that were previously classified as only one species. The results showed that the Tachypleus samples were 100% close to Tachypleus gigas. The phylogenetic results of samples from the island of Madura are in the same group as Tachypleus gigas from other locations.
Karakteristik Edible Film Berbasis Agar (Geledium sp.) Dan Tepung Tapioka Dengan Persentase Agar Yang Berbeda Dewi, Kartika; Widyaningsih, Dhea; Asih, Eka Nurrahema Ning; Insafitri, Insafitri; Prastari, Cindytia
Juvenil Vol 6, No 4: November (2025)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v6i4.31920

Abstract

ABSTRAKTepung tapioka merupakan salah satu bahan hidrokoloid dalam pembuatan edible film namun memiliki sifat gel yang lemah dan mudah robek sehingga perlu penambahan agar (Gelidium sp.). Penambahan agar dalam pembuatan edible film berbasis tepung tapioka bertujuan agar edible film yang dihasilkan memiliki karakteristik yang sesuai. Penelitian ini bertujuan mengetahui konsentrasi agar terbaik sebagai polisakarida tambahan untuk memperbaiki nilai kuat tarik pada edible film berbahan tepung tapioka.  Perlakuan yang diberikan berupa perbedaan konsentrasi agar, yaitu P1= 0,12%, P2= 0,14%, dan P3= 0,16%. Karakteristik yang di uji berupa ketebalan, water vapor transmission rate (WVTR), kuat tarik, kadar air, dan kelarutan. Data yang diperoleh dianalisis dengan sidik ragam satu arah (ANOVA). Hasil penelitian menunjukkan perbedaan konsentrasi agar pada edible film berbeda nyata terhadap ketebalan sebesar 0,042-0,52 mm, kuat tarik sebesar 15,39-21,43 MPa, tetapi tidak berbeda nyata terhadap water vapor transmission rate (WVTR), kadar air, dan kelarutan. Formulasi P3 menghasilkan karakteristik edible film terbaik. Perlakuan ini menunjukkan kuat tarik tertinggi (21,43 MPa), WVTR terendah (3,84 g/m²/hari), serta nilai ketebalan, kadar air, dan kelarutan yang masih dalam batas ideal karakteristik edible film. Hasil penelitian ini menunjukkan bahwa kombinasi tepung tapioka dan agar memiliki potensi untuk dikembangkan sebagai bahan kemasan ramah lingkungan yang aplikatif pada industri pangan.Kata kunci: kelarutan, ketebalan, kuat tarik, water vapor transmission rate (WVTR)ABSTRACTTapioca flour, a hydrocolloid substance utilized in the production of edible films, possesses limited gelling capabilities and is prone to tearing; hence, the addition of agar (Gelidium sp.) is required. The addition of agar in the process of making tapioca flour-based edible films aims to ensure that the edible film possesses the desirable qualities. This research aims to determine the optimal concentration of agar as an additive polysaccharide to improve the tensile strength of edible films made from tapioca flour. The given treatments consisted of varying agar concentrations: P1 = 0.12%, P2 = 0.14%, and P3 = 0.16%. The evaluated characteristics included thickness, water vapor transmission rate (WVTR), tensile strength, moisture content, and solubility. The data obtained were analysed using one-way ANOVA (analysis of variance). The research results showed that different agar concentrations in edible films significantly affected thickness (0.042-0.52 mm) and tensile strength (15.39-21.43 MPa), but did not significantly affect water vapour transmission rate (WVTR), moisture content, and solubility. Formulation P3 produced the best edible film characteristics. This treatment showed the highest tensile strength (21.43 MPa), the lowest WVTR (3.84 g/m²/day). Thickness, moisture content, and solubility values were all within the optimal ranges for edible film properties.Keywords: solubility, tensile strength, thickness, water vapor transmission rate (WVTR)
Co-Authors Adi Wira Akrama Agus Romadhon Agus Setyawan Alamsyah, Febri Arumning Tias Fauziah Asih, Eka Nurrahema Ning Cahya Laila Oktaviana Putri Choridina Kareninsekar Cindytia Prastari Dewi Parawita Eka Nurahemma Ning Asih Ervia Yudiati Eva Ari Wahyuni Fajar Miftachul Huda Fitriyah, Atiqotul Gatot Ciptadi Haryo Triajie, Haryo Henik Novitasari Hilmy Naufal Hidayat Indah Wahyuni Abida Indira Widya Pangestika Irwani Irwani Kartika Dewi Lilis Salafiyah Lisana Ainun Shafa Ariyanti Luluk Masruroh Makhfud Effendy Matius Gerry Nugroho Milda Prasanti Mohammad Nur Ihsan Neris Norma Tris Vionita Nesi Wahyu Listiani Nisa Riska Alif Nisa Riska Alif Rafsanjani, Deni S Supatno Suparno, Ahmad Faris Wahyu Andy Nugraha Widyaningsih, Dhea