| dc.description.abstract | In order to determine the effects of spray-drying conditions on physical,
functional properties of instant curcuma powder hydrolyses, Total
curcumin content (TCC), DPPH scavenging activity, water solubility,
moisture content, micro-structure of the hydrolyses before and after
spray-drying at different concentration of carriers, ratio of carrier and
spray-drying temperatures were investigated. Instant curcuma powder
was obtained by hydrolyzing of curcuma starch using α-amylase.
Maltodextrin and gelatin were used as carriers in spray-drying process
with the ratio 5:5; 6:4; 7:3 (w/w) at concentration 10, 15, 20% (w/v)
and the inlet air of 110, 130, 150oC. At 110oC, 15% carrier
concentration and ratio of carrier 7:3, curcumin extract powder
obtained highest total curcumin content (1.095mg/g), highest efficiency
of encapsulation (69.06%), total antioxidant activity around 20.57%
and solubility at around 52.33%. The micro-particle morphology had
smooth surface and no drug crystal. In conclusion, the optimal spraydrying condition was at concentration 15%, ratio of carrier 7:3 and
110oC, at that condition, total flavonoid content and efficiency of
encapsulation were obtained highest. | en_US |
