Patent ID: 8105637

Claim:
A method for producing a ginkgo biloba extract product, comprising: obtaining a starting material comprising starting ginkgo biloba extract particles having a particle size larger than 100 nm; crushing the starting ginkgo biloba extract particles to produce ginkgo biloba extract particles have an average particle size of between about 30 nm and about 100 nm, including: (a) introducing the starting ginkgo biloba extract particles into an airflow room and applying a high pressure of about 200 MPa, a high-speed rotation of about 15000 turns, and heat of about 70-80 degree C. in the airflow room, whereby the starting ginkgo biloba extract particles are caught in air streams and crushed by intercollision; and (b) blowing the particles obtained from step (a) at a high speed toward a board inside a jet-flow room, whereby the particles collide against the board at a high speed and become reduced in size; and collecting the ginkgo biloba extract particles as the ginkgo biloba extract product.