Spray-Dried Microencapsulation of Oregano (Lippia graveolens) Polyphenols with Maltodextrin Enhances Their Stability during In Vitro Digestion

Table 4

Experimental values of the optimization.

Experimental run	Coded variables		Experimental values
	X1	X2	%	EPC (mg GAE/430 mg IGAS)
1	-1	-1	58.93	251.15
4	1	-1	53.85	212.59
5	-1	1	40.22	150.59
7	1	1	48.15	207.10
2	-1.41421	0	34.76	138.00
12	1.41421	0	69.39	260.63
9	0	-1.41421	66.92	259.57
6	0	1.41421	55.30	220.29
11	0	0	69.05	277.39
10	0	0	66.42	284.38
8	0	0	69.27	276.55
3	0	0	71.85	282.36
13	0	0	68.61	281.40

% : yield percentage; EPC: encapsulated phenolic compounds; mg GAE: milligrams of gallic acid equivalents; IGAS: milligrams of initial gallic acid solution.