Evidence of amino acids in hydrolysates of compounds formed by ionizing radiations

Details Evidence of amino acids in hydrolysates of compounds formed by ionizing radiations Evidence of amino acids in hydrolysates of compounds formed by ionizing radiations

Dec 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977orli....8..377d&link_type=abstract

Origins of Life, Volume 8, Issue 4, pp.377-382

Computer Science

1

Scientific paper

It has been shown that the action of ionizing radiations on dilute, oxygen-free, aqueous solutions of acetonitrile and propionitrile leads to the formation of oligomers, which upon hydrolyses release amino acids. The presence of nine amino acids, the same as those found in irradiated aqueous cyanides, has been established. Those amino acids with asymmetric carbon atoms separated by GC method, appeared to consist of nearly equal amounts of D and L isomers. Glycine is the most abundant amino acid in hydrolysates of acetonitrile, while alanine appears in the samples of propionitrile. A comparison of all amino acids, identified in hydrolysates of various cyanides and nitriles, suggests that it is the cyano group, and a free-radical initiated mechanism, that is primarily involved in these radiation-chemical changes of potential interest to prebiotic chemistry.

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