Shellac is the only naturalresin - or gummy substance from a tree - that requires an animal middleman for its production.
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This balloon is covered with shellac, a Food and Drug Administration (FDA) approved naturalresin, to obtain an equally distributed tissue concentration of paclitaxel.
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Boswellic acid comes from plantresin.
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The amber, which is formed when plantresin fossilizes, preserving flora and fauna trapped within, was found in what is now northwest Ethiopia.