Optimization of Wall Materials for Astaxanthin Powder Production from Shrimp Shell Extract Using Simplex Lattice Mixture Design

Table 7

The effect of UV light on the reaction rate constant, correlation coefficient, and half-life of astaxanthin in microcapsules.

Wall composition			Reaction rate constant () (h^-1)	Half-life (h)		Retention astaxanthin (%)
MD7	Hi-Cap 100	MD20
0	50	50	0.036	19.4	0.97	69.9
50	0	50	0.045	15.3	0.99	63.4
0	0	100	0.0455	15.3	0.97	62.7
50	50	0	0.0445	15.6	0.99	64.4
100	0	0	0.0595	11.7	0.99	55.45
16.67	66.67	16.67	0.035	20.0	0.99	71.3
0	100	0	0.059	11.8	0.96	55.3
16.67	16.67	66.67	0.033	20.9	0.97	75.5
66.67	16.67	16.67	0.038	18.3	0.98	68.3
33.33	33.33	33.33	0.027	26.1	0.99	76.7
29.39	34.07	36.55	0.026	26.3	0.99	76.9
0	0	0	0.132	5.3	0.98	15.2