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Acacia Tannins

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DreaMTripper

Rising Star
After going on a wiki spiral I came across this page 404 Not Found
Many acacia apparently have a large percent of tannins in their bark.
The tannins break down at 21 degrees C so it means if you are extracting from a species with a high percentage then it is evident that an acid cook would make the alkaloids much more accessible. With a stb your solvent would be facing a wall of treacle.
Interestingly enough these flavanoids are considered beneficial for humans.
 
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