Product Development of Khao-Tang Supplemented with Calcium from Grey Feather Back Fish Bone

Abstract

The objective of this study was to develop a Khao-Tang supplemented with
calcium from grey feather back fish bones in order to add value to the raw material of fish
bone powde. Calcium supplementation by using fish bone powder was able to provide 20
percent of the recommended daily intake in one serving (30 grams). One serving of
Khao-Tang supplemented with calcium from grey feather back fish bone contained 3.80±
0.11% moisture, 18.31± 0.16% protein, 12.36±0.10% fat, 2.03± 0.19% ash, 63.50± 0.27%
carbohydrates, 174 mg calcium and 114 mg phosphorus. Physical quality analysis of
Khao-Tang supplemented with calcium from grey feather back fish bone showed that
water activity values ranged from 0.34 to 0.55 and L* a* b* were 35.01±0.27, 11.21±0.18
and 17.10±0.15, respectively. Studies on the shelf life of Khao-Tang supplemented with
calcium from grey feather back fish bone and packed in a polyethylere plastic bag at a
temperature of 30 degree Celsius indicated that the shelf life was 4 weeks; yeast and
mold were present at less than 100 CFU/g.