Amplification of enantiomeric concentrations under credible prebiotic conditions.
basic_science · Level V
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- Record sourced from PubMed, PMID 16938839.
- Also identified by PMC identifier 1559738.
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Abstract
Solutions with as little as 1% enantiomeric excess (ee) of D- or L-phenylalanine are amplified to 90% ee (a 95/5 ratio) by two successive evaporations to precipitate the racemate. Such a process on the prebiotic earth could lead to a mechanism by which meteoritic chiral alpha-alkyl amino acids could form solutions with high ee values that were needed for the beginning of biology.
Medical subject headings
- Phenylalanine