Stabilitas Es Krim yang Diberi Khitosan sebagai Bahan Penstabil pada Konsentrasi yang Berbeda

Abstract

Ice cream is a fat emultion in water. Chitosan as used stabilizer, it was hoped can be added the right thickness to limit cristalization. Therefore it can form ice cream with smoother tecstur and increase the strength and effect the melting ability of ice cream. Chitosan able to give added value to ice cream for it was advantaged which were reduced the cholesterol level of blood, coagulant against in blood, food fiber, bacteria against and clotes leukimia cells so that suitable as substances against tumor. The aim of this research is to find chitosan with the best concentration that used as stabilizer in ice cream and to studies impact of added chitosan fisically, organoleptic quality and chemistry. Method of ice cream was dough preparated, mixed, pasteurized, homogenized, ripened, freezed, foamed, packaged and hardened. This experiment was conducted using randomized completed design with five levels (0; 0,05; 0,1; 0,15 and 0,2%) and the data were analized using ANOVA and the significant differences occurred then continued with Duncan Multiple Range Test. The results showed that ice cream with chitosan as stabilizer significantly (P<0,01) affect the overrun, melting ability and pH value than significantly (P<0,01) affect the colour, taste, texstur and melting ability in mouth, but not significantly affect the smell. Protein value suitable with standarization was 2,7 (%bb), fat value 4,54 (%bb), solid totality 3,83 (%bb) and ash value was 0,77 (%bb). The addition of chitosan as stabilizer to 0,05% produced the most palatable product.