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All Journal World Chemical Engineering Journal
Hanif Al Fattah
Universitas Sultan Ageng Tirtayasa
Chemical Engineering, Chemistry & Bioengineering

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The effect of Temperature Drying of Seaweed, Addition of Calcium Hypochlorite, and Potassium Hydroxide on the Quality of Semi-Refined Carrageenan Products Heri Heriyanto; Windi Astria; Hanif Al Fattah; Endang Suhendi
World Chemical Engineering Journal Vol 7, No 2 (2023)
Publisher : Chemical Engineering Department, University of Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/wcej.v7i2.23042

Abstract

Indonesia is a major producer of Eucheuma cottonii seaweed, yet its utilization remains suboptimal. Approximately 80% of seaweed exports consist of raw materials with low market value. The research aims to enhance the quality and market value of seaweed by transforming it into semi-refined carrageenan products. The method used for carrageenan production involves extraction using a KOH solution with different concentration levels using 5%, 7.5%, and 10% (w/v), along with drying temperatures ranging from 80°C to 90°C. Additionally, bleaching treatment is applied using calcium hypochlorite with concentration level using 1.5% and 2.5% (w/v). The analyses conducted include water content, ash content, yield, viscosity, gel strength, and degree of whiteness. The optimal results for semi-refined carrageenan, based on yield analysis, water and ash content, gel strength, viscosity, and degree of whiteness, were obtained from samples with a KOH concentration of 10%, calcium hypochlorite concentration of 1.5%, and drying temperature of 80°C.
Co-Authors Endang Suhendi, Endang Heri Heriyanto Windi Astria