Evaluation of Antioxidant Ability In Vitro and Bioavailability of trans-Cinnamic Acid Nanoparticle by Liquid Antisolvent Precipitate

Table 1

Single factor and levels program.

Levels	Factors
	(A) Precipitation time (min)	(B) TCD concentration (mg/mL)	(C) Volume ratio of antisolvent and solvent	(D) HPMC additive proportion (%)	(E) Stirring intensity (r/min)
1	3	30	1 : 1	0.1	500
2	5	50	2 : 1	0.2	1000
3	10	100	4 : 1	0.3	1500
4	20	150	6 : 1	0.4	2000
5	30	170	8 : 1	0.5	2500