Concentration effect of OOE in stripped FO
Table 3 shows PV, CDV and p -AV of FO samples with 0.05, 0.1 and
0.2% OOE after 10 days at 25 ℃ and after 5 days at 40 ℃. At 25 ℃, PV,
CDV and p -AV of FO slightly lowered by increasing concentration
of OOE from 0.05% to 0.2%. At 40 ℃, PV did not show the differences
between OOE concentrations. This is because that PV of FO samples
increased so quickly at 40 ℃ and FO samples with 0.05-0.2% OOE might
have already reached the peak PV in 2 days as shown in Figure 4. CDV
decreased from 10.19 ± 0.24 mmol/L to 8.43 ± 0.14 mmol/L as OOE
concentration increased from 0.05% to 0.2%. p -AV of FO with
0.2% OOE was significantly lower (16.23 ± 0.08) than that with 0.05%
OOE (36.77 ± 0.70). Overall results in Table 3 indicate that, unlike in
SBO, the protection effect of FO can be improved by increasing
concentration of OOE from 0.05% to 0.2%.