Karakteristrik Enkapsulat Ekstrak Pewarna Fungsional Bunga Rosella (Hibiscus sabdariffa L.) pada Perlakuan Perbandingan Kasein-Maltodekstrin

Abstract

Rosella contains high levels of anthocyanin and can be used as a source of functional dyes. The making of functional dyes is carried out through the process of extraction and encapsulation. The aims of this study were to determine the effect of casein-maltodextrin encapsulation ratio on the encapsulation characteristics of rosella flower functional dye extract and determine the best encapsulation ratio of casein-maltodextrin in producing rosella functional dye extract encapsulates. Experiments in this study used a single factor randomized block design. These factors are the casein and maltodextrin ratio which consists of (maltodextrin), (1: 0.5), (1: 1), (1: 1.25), (1: 1.5), (1: 1.75), (1: 2.0), (1: 2.5) and (casein). The results showed that casein and maltodextrin comparison factors had a significant effect of yield, (P <0.01) on yield, total anthocyanin, surface anthocyanin level, encapsulation efficiency, solubility, brightness (L*), redness (a*), yellowish level (b*) but did not have a significant effect (P> 0.05) on water content. The comparison treatment between casein and maltodextrin 1: 0.5 is a treatment to produce encapsulate products of roselle flower functional dye extract with a yield of 42.86 percent, water content of 5.04 percent, surface anthocyanin total of 9.43 mg/g, surface anthocyanin level 1.66 mg/g, encapsulation efficiency 82.37 percent, solubility 45.84 percent, brightness level (L*) 60.86, redness level (a*) 25.64, yellowish level (b*) 29.61.
 Keywords: rosella (Hibiscus sabdariffa L.), extraction, casein, maltodextrin, encapsulation.