How do you extract the active components from cow cockle?

The extraction technique is fairly typical. We grind up the seed, which normally contains oils and fats. The plant we're working with has only a small percentage of those, about three percent. We generally wash that with a solvent like hexane to remove the oils and leave you with an oil-free seed meal. Generally the compounds we're interested in are soluble in water or alcohol, so we make what we call a tincture: we dissolve it in aqueous ethanol, which leaves behind a lot of the insolubles, the starches and proteins and things like that. We then pull out our phytochemicals. Using this method, about five percent of the cow cockle seed gives us extractable phytochemicals.
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