Without bacteria or chemicals: How methanol and formaldehyde form abiotically in nature

The biopolymer lignin—one of the most important carbon reservoirs in plants and soils—not only decays through fungi or bacteria but can also be chemically attacked by iron linked to reactive oxygen species, without the involvement of microorganisms. When this happens, lignin is converted into methanol and subsequently into formaldehyde. That is shown by a study conducted at Heidelberg University's Institute of Earth Sciences.

Read it at Phys.org ↗

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