Antioxidant and Anti-tyrosinase Activities of Halymenia durvillei Water Extract Containing R-Phycoerythrin Before and After Microencapsulation

Halymenia durvillei water extract (HDWE) contains a dark-pink colored pigment of Rphycoerythrin (R-PE), which its stability is influenced by temperature and pH andpossesses biological activities. Microencapsulation could be the solution to preservingthe nature R-PE. This study characterized HDWE emulsion analyzed RPE content, antioxidants, anti-tyrosinase activities before after microencapsulation using sodium caseinate maltodextrin (M-HDWE). was extracted in distilled (ratio 1:2, w/v) for 24 hours at 4 °C. Sodium coating ratios were 1:2; 1:4; 1:6 1:12. Emulsion (viscosity, color, R-PE content) powder characteristics (surface morphology) determined Brookfield DV2T, ColorFlex EZ Hunterlab, UV-VIS spectrophotometry, JeolSEM, respectively. The antioxidant Ferric Reducing Antioxidant Power (FRAP) mushroom tyrosinase assays. Commision Internationale d’Éclairage (CIE) L* a* b* colorimetry result showed that more lower viscosity, intense color. Despite having roughly six-fold all M-HDWE treatment samples exhibited equal contents (p 0.05). 1:6; 1:12 microcapsules had wrinkled spheres fewer cracks than MHDWE 0. 1:2 33.10% activity highest compared other compositions (17.15±1.27 µM/µg extract, p Meanwhile, low activity. It can concluded preserving HDWE’s but not