Abstract
Alginate is a primary metabolite that is needed in food and non food industries. Alginate extraction<br />method of seaweed affect on viscosity and yield of the alginate. This study aimed to determine the effect of<br />extraction methods on characteristic and quality of sodium alginate Sargassum fluitans and the extraction<br />cost needed. This study used two different extraction methods which wereacid alginate method and calcium<br />alginate method. Quality parameters observed include yield, moisture content, ash content, viscosity,<br />pH, whiteness index, and functional group analysis, also extraction cost analysis. The results showed that<br />alginate extraction of S. fluitans by alginic acid method produced better sodium alginate quality than using<br />calcium alginate method, but the cost higher. Sodium alginate produced by alginic acid method had high<br />viscosity (127.17±11.50 cps) with yield 9.95±0.31%. The moisture and ash content of the product was low or<br />9.35±0.31% and 21.88±0.41%, respectively.<br /><br />
Highlights
Alginate is a primary metabolite that is needed in food and non food industries
The results showed that alginate extraction of S. fluitans by alginic acid method produced better sodium alginate quality than using calcium alginate method, but the cost higher
Ekstraksi dan pemurnian alginat dari Sargassum filipendula kajian dari bagian tanaman, lama ekstraksi dan konsentrasi isopropanol
Summary
Bahan baku yang digunakan dalam penelitian adalah S. fluitans dari Kepulauan Alor. Bahan kimia yang digunakan meliputi: KOH, CaCl2, isopropil alkohol, larutan buffer, Na2CO3 (KGaA, Germany), formalin, HCl (Mallinckrodt Chemicals, USA), etanol teknis, NaOCl
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