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Encapsulation of anthocyanin extract from Rosella petals using extrusion method with coating variation namely Ca-alginate, chitosan-TPP and Ca-alginate/chitosan has been done. This study aimeds to determine the exact coating of the three coating variations for anthocyanin extract encapsulated in terms of encapsulation efficiency values and antioxidant activity, also to determine the stability of product that exhibit the greatest antioxidant activity against temperature (4, 25 dan 40 °C) and storage time (0, 6 and 16 days). The measurement of total anthocyanin encapsulated as cyaniding-3-glucoside was performed by using the pH-differential method. The results showed that the best encapsulation products were obtained in atc-alg/cts encapsulation product that provided an encapsulation efficiency value of 98.28%. The greatest antioxidant activity was obtained in atc-alg/cts products with an IC50 value of 4079.88 ppm. Stability analysis showed the product can still be stored at 25°C. The lowest total encapsulated anthocyanins were shown in product with a storage temperature of 40°C for 16 days of 9.02 mg/L. Based on these results it can be concluded that the appropriate coating for the anthocyanin extract encapsulation product was Ca-alginate/chitosan coating..

ENKAPSULASI EKSTRAK ANTOSIANIN DARI BUNGA ROSELA (Hibiscus sabdariffa L.) DENGAN VARIASI PENYALUT