Physical analysis of black glutinous rice cracker
Black glutinous rice cracker was made from its flour which was ground without remove outer layer (pericarp) of grain. Hence, the color of product was dark purple-red color represented of anthocyanin located in pericarp. The parameter of lightness, redness and yellowness were 34.13 ± 1.23, 9.00 ± 0.98 and 5.43 ± 0.82, respectively. Hardness was determined by measure force in compression and the result showed not much value (301.24 g.force).This result accorded to crispy of product by sensory evaluation. Panelists preferred product because it is brittle represented by hedonic score. Water activity was 0.41 and it was not higher than criteria (0.6).