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All Journal Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology
Poetri, Tika Annisa Eka
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology

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Effect of Alginate and Polyethylene Glycol Addition on Physical and Mechanical Characteristics of k-Carrageenan-based Edible Film Giyatmi, Giyatmi; Poetri, Tika Annisa Eka; Irianto, Hari Eko; Fransiska, Dina; Agusman, Agusman
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 15, No 1 (2020): May 2020
Publisher : Research and Development Center for Marine and Fisheries Product Processing and Biotechnol

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (516.391 KB) | DOI: 10.15578/squalen.v15i1.418

Abstract

Waste disposal problems have attracted scientists around the world to explore the use of renewable resources to produce biodegradable films and coatings. Indonesia has diverse renewable resources of biopolymers that originated from seaweeds such as carrageenan, agar, and alginate. Carrageenan is considered as a potential biopolymer for edible film manufacture due to its characteristic range. This study aimed to develop carrageenan-based edible film using alginate and polyethylene glycol as plasticizers. Edible film made from k-carrageenan with the addition of alginate and polyethylene glycol (PEG) as plasticizers was tested for its mechanical properties, water vapor transmission rate (WVTR) and water solubility.  Blending k-carrageenan with alginate (0%, 0.25%, 0.5%, 0.75%, and 1.0% w/v) increased tensile strength, thickness, and water solubility, but reduced elongation at break, WVTR, and moisture content. The addition of PEG (1%, 2%, and 3% w/v) reduced tensile strength and water solubility, but increased elongation at break, thickness, and moisture content. This study recommended that the best carrageenan-based edible film was obtained from a formula using 1% alginate (w/v) and 1% PEG (w/v).
Co-Authors Agusman, Agusman Fransiska, Dina Hari Eko Irianto Laksono Trisnantoro