Filter the resulting homogenate through sterile gauze and
centrifuge the filtrate at 10 000–12 000 g for 20 min at 10°C. Remove the supernatant and resuspend the pellet in
1.0–1.5 mL sterile water to obtain the final concentrate. Prepare 10-fold dilutions for direct isolation.
Aliquots of each seed extract can be frozen as a reference and used for any further testing.