Abstract
Microwave assisted extraction is an environmentally friendly extraction method, which has been used to extract tannins from mangrove waste. Tannin is a natural dye which is easily oxidized, easily degraded and the color fades easily. To increase its color retention, tannin was encapsulated with chitosan nanoparticle. This study aims to determine the effect of volume tween 80 on particle size and physical and chemical characteristics of tannin extract from mangroves encapsulated with chitosan nanoparticle. The encapsulated tannin extract particle size was measured by Particle Size Analyzer and characterized by FTIR, SEM. The test results showed that the average particle diameter of the encapsulated tannin extract was in the range of 192.37 nm with a PDI of 0.1660 which was obtained by adding 0.5 mL of Tween 80. Encapsulation efficiency reaches 78.1%. The FTIR spectrum showed the presence of a cross-linked C=N stretching absorption band at wave number 1643.35 cm-1 in nano encapsulation of tannin extract.. The color fastness test of cotton cloth in hot water has a value of ΔE = 3, which means that the color fastness is moderate.
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