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Environmental Processing of Lipids Driven by Aqueous Photochemistry of α-Keto Acids
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2018
Source: ACS Cent. Sci. 2018, 4, 5, 624–630
Details:
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Journal Title:ACS Central Science
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Personal Author:
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NOAA Program & Office:
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Description:Sunlight can initiate photochemical reactions of organic molecules though direct photolysis, photosensitization, and indirect processes, often leading to complex radical chemistry that can increase molecular complexity in the environment. α-Keto acids act as photoinitiators for organic species that are not themselves photoactive. Here, we demonstrate this capability through the reaction of two α-keto acids, pyruvic acid and 2-oxooctanoic acid, with a series of fatty acids and fatty alcohols. We show for five different cases that a cross-product between the photoinitiated α-keto acid and non-photoactive species is formed during photolysis in aqueous solution. Fatty acids and alcohols are relatively unreactive species, which suggests that α-keto acids are able to act as radical initiators for many atmospherically relevant molecules found in the sea surface microlayer and on atmospheric aerosol particles.
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Keywords:
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Source:ACS Cent. Sci. 2018, 4, 5, 624–630
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Document Type:
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Rights Information:Accepted Manuscript
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Compliance:Submitted
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Main Document Checksum:urn:sha256:af6bf99d4b2b293054be5ac78887f58fc620c23d4415605de6021f7f9cee5472
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Supporting Files
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