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(2) Ginkgo biloba leaves should be collected from October to November, after the autumn frosted leaves, dried, to remove impurities, can be used for medicinal purposes. When the leaves were collected before being yellowed in August, the contents of total flavonoids and ginkgolides in Ginkgo biloba were high. Therefore, the cyan leaves before yellowing were collected as raw materials for extraction. Since Ginkgo biloba extract has a more stable effect on the treatment of cerebral arteriosclerosis, it is sold well at home and abroad, and its extract price is 800 US dollars per kilogram. Therefore, Ginkgo biloba extract can obtain good economic benefits. Source: Zhongshan Agricultural Information Network
Ginkgo harvesting processing
(1) Ginkgo biloba leaves from September to November, when the outer seed coat is orange-yellow, or after the natural maturation falls off, the fruit is collected and piled in a damp place after harvesting. The ginkgo can also be soaked in the tank to rot the pulp. Then remove and flesh the outer seed coat in clean water, rinse, dry, store after use, at the same time, break the shell, peel out the kernels, known as raw white nuts. Steaming, frying, simmering and other methods of processing, breaking the shell, take the seed, that is cooked white nuts.