of 0.15M NaCl was shaken vigorously for 2 min (Bioblock,
Illkirch, France) with 0.4 ml of the solvent under investigation
to form an emulsion. The mixture was then allowed to stand
for 15 min to ensure complete separation of the two phases. The
absorbances of the aqueous phase before (A0) and after (A) mixing
were measured at 400 nm. The percentage of bound cells
(%A dh) was determined using the following equation:
%Adh =
1 − A
A0
× 100