2.5. Optical microscopy
Micrographs were obtained with an optical microscope operating
at 400 magnification and using an adapted digital camera
(Canon A570 IS; Malaysia) at 4 optical zoom.
2.6. Aqueous protein determination
To determine protein in the aqueous phase, SB samples were
firstly centrifuged at 10,000 g for 30 min. Insoluble protein debris