Table 7 Comparison of sonication and high-pressure homogenization (HPH)-produced stearic acid solid lipid nanoparticles (SLN), before and after lyophilization (Lyo). Values shown for size, polydispersity index (PdI) and zeta potential, n = 3.

From: Production of rumen- and gastrointestinal-resistant nanoparticles to deliver lysine to dairy cows

Formulation

Sonication SLN

Sonication SLN Lyo

SEM

P value

Size (nm)

562

452

28

0.098

PdI

0.23

0.29

0.01

0.011

Zeta potential (mV)

− 40

− 36

1

0.051

Formulation

HPH SLN

HPH SLN Lyo

SEM

P value

Size (nm)

352

394

16

0.166

PdI

0.30

0.27

0.01

0.049

Zeta potential (mV)

− 34

− 32

1

0.355

  1. SEM standard error of the mean.