Radiolysis and radioracemization of 20 amino acids from the beginning of the Solar System

@article{Cataldo2011RadiolysisAR,
  title={Radiolysis and radioracemization of 20 amino acids from the beginning of the Solar System},
  author={Franco Cataldo and Ornella Ursini and Giancarlo Angelini and Susana Iglesias-Groth and Arturo Manchado},
  journal={Rendiconti Lincei},
  year={2011},
  volume={22},
  pages={81-94}
}
A series of chiral amino acids in the levo form used in the current terrestrial biochemistry were irradiated in the solid and dry state with γ-radiation to a dose of 3.2 MGy which is the dose equivalent to that derived by radionuclide decay in comets and asteroids in 1.05 × 109 years at a depth >20 m. For each amino acids, the radiolysis degree and the radioracemization degree was measured, respectively by differential scanning calorimetry (DSC) and by optical rotatory dispersion (ORD… 

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