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Synthesis of C-enriched Amino Acids with C-depleted Insoluble Organic Matter in a Formose-type Reaction in the Early Solar System

Overview
Journal Sci Adv
Specialties Biology
Science
Date 2021 Apr 29
PMID 33910902
Citations 11
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Abstract

Solvent-soluble organic matter (SOM) in meteorites, which includes life's building molecules, is suspected to originate from the cold region of the early solar system, on the basis of C enrichment in the molecules. Here, we demonstrate that the isotopic characteristics are reproducible in amino acid synthesis associated with a formose-type reaction in a heated aqueous solution. Both thermochemically driven formose-type reaction and photochemically driven formose-type reaction likely occurred in asteroids and ice-dust grains in the early solar system. Thus, the present results suggest that the formation of C-enriched SOM was not specific to the cold outer protosolar disk or the molecular cloud but occurred more widely in the early solar system.

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