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All Journal Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology
Dina Fransiska
Research and Development Center for Marine and Fisheries Product Processing and Biotechnology
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology

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PROSPEK PRODUKSI AGAROSA DAN AGAR MIKROBIOLOGI DI INDONESIA Dina Fransiska; Murdinah Murdinah
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 2, No 2 (2007): December 2007
Publisher : Research and Development Center for Marine and Fisheries Product Processing and Biotechnol

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/squalen.v2i2.139

Abstract

Rumput laut selain sebagai penghasil agar untuk makanan juga dapat menghasilkan agarosa dan agar mikrobiologi yang memiliki nilai ekonomi lebih tinggi. Selama ini di Indonesia agar telah digunakan secara luas dalam industri pangan namun belum banyak dimanfaatkan dalam bidang bioteknologi. Seiring dengan perkembangan penelitian di bidang bioteknologi, permintaan pasar internasional untuk agar mikrobiologi terus meningkat. Bahan baku yang cukup tersedia dan tumbuh tersebar di wilayah perairan Indonesia sangat potensial dalam mendukung produksi agarosa dan agar mikrobiologi.
Characteristics of Irradiated Hydrogel Formulated from Composite i/k-carrageenan Combined with Polyvinyl Alcohol Bagus Sediadi Bandol Utomo; Dina Fransiska; La Ode Sumarlin; Ihya Sulthonuddin
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 16, No 3 (2021): December 2021
Publisher : Research and Development Center for Marine and Fisheries Product Processing and Biotechnol

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/squalen.439

Abstract

Eucheuma seaweed from tropical waters habitat mainly contains carrageenan, a type of hydrocolloid potential for hydrogel production. This study aims to determine the characteristics of hydrogel formulated from composite i- and k-carrageenan combined with polyvinyl alcohol (PVA) which, could be used further for wound dressing application. The concentrations of composite i/k-carrageenan used were 1.0%, 1.5%, 2.0%, 2.5% and 3.0% w/w, and the PVA concentration was 12.5% w/w. Composite i/k-carrageenan in a proportion of 6:4 by weight. The hydrogel was irradiated using 60Co g-rays with the irradiation dose of 25 and 2 kGy.h-1. The concentration of composite i- and k-carrageenan influenced the gel fraction, water holding capacity, tensile strength, elongation, and surface morphology of the hydrogel. The optimum formula of irradiated composite hydrogel was obtained from 3.0% w/w of composite i/k-carrageenan. The formula had a gel fraction of 61.67%, water holding capacity of  1067.12%, tensile strength of  32.37 x 10-3 MPa, and elongation of  251.67%. Interestingly, the product with the optimum formula had a porous surface morphology and transparency, which are applicable for wound dressing purposes.
Co-Authors Bagus Sediadi Bandol Utomo Ihya Sulthonuddin La Ode Sumarlin Murdinah Murdinah