solubility
Free Ginkgo Biloba Extract are lipophilic, generally insoluble in water, but easily soluble in lipophilic organic solvents and ethanol.
Gardenia Yellow with phenolic hydroxyl groups are also soluble in alkaline aqueous solutions. When lignans combine with sugar to form glycosides, the hydrophilicity and water solubility of lignans increase.
Optical activity
Mangiferin usually have multiple chiral carbon atoms or chiral centers, so most of them have optical activity. The physiological activity of lignans is often related to the configuration of chiral carbon. Therefore, attention should be paid to the operating conditions in the Indole-3-Carbinol extraction process to avoid structural changes of the extracted components.
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