TABLE 1.

Physicochemical characterization of poly(anhydride) nanoparticles prepared by lyophilization or spray-drying

Nanoparticle formulation	Result (mean ± SD) (n = 6) for:
	Size (nm)	Zeta potential (mV)	PE content (μg/mg NP)	Encapsulation efficiency (%)	Yield (%)
NP-La	201 ± 3	−49 ± 2			80 ± 2
NP-SDb	172 ± 4	−42 ± 4			63 ± 1
NP-Raw-Lc	161 ± 3	−46 ± 2	31 ± 2	75 ± 5	73 ± 5
NP-Ro-Ld	155 ± 2	−45 ± 5	30 ± 3	72 ± 6	76 ± 4
NP-Raw-SDe	150 ± 5	−47 ± 2	35 ± 5	62 ± 3	60 ± 4
NP-Ro-SDf	143 ± 6	−48 ± 3	32 ± 3	60 ± 4	61 ± 3

^aNP-L, unloaded lyophilized nanoparticles.

^bNP-SD, unloaded spray-dried nanoparticles.

^cNP-Raw-L, lyophilized nanoparticles loaded with raw peanut proteins.

^dNP-Ro-L, lyophilized nanoparticles loaded with roasted peanut proteins.

^eNP-Raw-SD, spray-dried nanoparticles loaded with raw peanut proteins.

^fNP-Ro-SD, spray-dried nanoparticles loaded with roasted peanut proteins.