Abstract：
:Aqueous solutions of isovaline and its precursor molecule, 5-ethyl-5-methylhydantoin, were irradiated with ultraviolet and γ-ray photons, to evaluate their structural stability against space radiation. The degree of photolysis was measured and irradiation products were identified using chiral, reversed-phase and ion-exchange high-performance liquid chromatography. The experimental results show that the degree of photolysis of 5-ethyl-5-methylhydantoin is more significant than that of isovaline under ultraviolet light irradiation, while the results under γ-ray irradiation are the opposite. As the products of isovaline photolysis, aspartic acid, serine, glutamic acid and alanine were dominantly detected.
journal_name
Int J Mol Scijournal_title
International journal of molecular sciencesauthors
Sarker PK,Takahashi J,Kawamoto Y,Obayashi Y,Kaneko T,Kobayashi Kdoi
10.3390/ijms13011006subject
Has Abstractpub_date
2012-01-01 00:00:00pages
1006-17issue
1issn
1422-0067pii
ijms-13-01006journal_volume
13pub_type
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