| 21. | These are monomeric glycoproteins involved in the degradation of lignin.
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| 22. | The fungus breaks down the lignin, causing white rot.
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| 23. | Components of the lignin start yellowing when a newspaper is exposed to light.
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| 24. | Left alone over geologic time, lignin would compress and turn into coal.
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| 25. | Different types of lignin have been described depending on the means of isolation.
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| 26. | Lignin structure can also be studied by computational simulation.
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| 27. | Conventional solution-state NMR for lignin is possible.
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| 28. | Much of the lignin remains adhering to the fibres.
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| 29. | Therefore, it contains a lot of lignin, which lowers its strength.
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| 30. | Leaves which compact into a hard slippery lignin coating.
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