| 11. | The bark and especially the fruit yield pyrogallol and catechol to dye and tan leather.
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| 12. | This organism's cells are about 2 x 4 water-soluble catechol melanin.
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| 13. | The catechol estrogens are endogenous metabolites of estradiol and estrone and include the following compounds:
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| 14. | The activity of tyrosinase is similar to catechol oxidase, a related class of copper oxidase.
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| 15. | Polyphenol oxidases are a family of di-copper metalloenzymes that include tyrosinase and catechol oxidase.
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| 16. | The key role of catechol oxidase in enzymatic browning makes it a common target for inhibition.
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| 17. | When the pharmacophore of salicylic acid and catechol were merged, new chemical scaffolds were created.
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| 18. | Catechol has since been shown to occur in free-form naturally in kino and in beechwood tar.
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| 19. | In many polyphenols, the catechol group acts as electron acceptor and is therefore responsible for the antioxidant activity.
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| 20. | Smoke deposits a number of pyrolysis products onto the food, including the phenols syringol, guaiacol and catechol.
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