Product Development of Crispy Brownies Fortified with Bio Calcium from Tuna Bone Powder

Abstract

The objective of this study was to develop crispy brownies supplemented with bio-calcium from tuna bones in order to add value of them and study on consumers acceptance. The fortified crispy brownies were prepared by adding 0, 10, 20, 30, 40 and 50 percent of bio-calcium powder which source from tuna bones. The result of sensory analysis found that the 30 percent of calcium fortified crispy brownies obtained the highest liking score. Proximate analysis of 30 percent of calcium fortified crispy brownies from tuna bones contained moisture (2.47 g/100 g), and showed composition of protein (9.47 g/100 g), fat (24.43 g/100 g), ash (5.37 g/100 g), carbohydrate (57.40 g/100 g) calcium (1.37 g/100 g) and phosphorus (0.79 g/100 g). In addition, physical analysis of crispy brownies supplemented with bio-calcium from tuna bones showed that water activity values range from 0.29 to 0.32 and hardness value was 365.45±30.64 N and L* a* b* were 25.20±0.37, 6.45±0.68 and 6.97±0.20, respectively.