Table 4.
Zeta-potential and average particle diameter of fresh Biji pastes after HPH treatment

Sample Zeta-potential (mV) Average particle diameter (nm)
NT -17.4 N/D
HPH1 – 15 -20.4 469.4
HPH2 – 15 -22.6 459.3
HPH1 – 25 -26.2 419.8
HPH2 – 25 -27.8 405.3
NT : Not treated
HPH1–15 : 15,000 psi, 1 pass Biji
HPH2 – 15 : 15,000 psi, 2 pass Biji
HPH1–25 : 25,000 psi, 1 pass Biji
HPH2 – 25 : 25,000 psi, 2 pass Biji