Amino Acids in the Yamato-74662 Meteorite, an Antarctic Carbonaceous Chondrite
スポンサーリンク
概要
- 論文の詳細を見る
The Yamato-74662.23 meteorite, a carbonaceous chondrite (C2), was examined for amino acids. The meteorite sample was separated into an exterior and an interior portion. Each fraction was pulverized and extracted with water. Unhydrolyzed and acid-hydrolyzed water extracts were analyzed for amino acids, qualitatively and quantitatively. Fifteen amino acids were detected. Of these, nine amino acids are proteinaceous and six amino acids are non-proteinaceous. Glycine is the most abundant amino acid in the unhydrolyzed portion (14nm/g in the exterior and 13nm/g in the interior) and the acid-hydrolyzed portion (34nm/g in both the exterior and the interior). The D-and L-isomers of alanine, aspartic acid, and glutamic acid are nearly equal in abundance in the unhydrolyzed and hydrolyzed portions of the exterior and interior. These results clearly indicate that the amino acids detected were of meteoritic origin and few had terrestrial contaminants.
- 国立極地研究所の論文
著者
-
PONNAMPERUMA Cyril
Laboratory of Chemical Evolution, University of Maryland
-
Yanai Keizo
National Institute of Polar Research
-
Ponnamperuma Cyril
Laboratory Of Chemical Evolution Department Of Chemistry University Of Maryland
-
Shimoyama Akira
Laboratory Of Chemical Evolution Department Of Chemistry University Of Maryland
関連論文
- 模擬原始惑星環境下での生体関連分子の無生物的合成
- Yamato-86720: A CM carbonaceous chondrite having experienced extensive aqueous alteration and thermal metamorphism
- Origin and Evolution of Condrules Based on Na/Al-Dispersion and -Convergence in Yamato-74 Ordinary Chondrites
- Antarctic howardites and their primitive crust
- Mineralogy of the Yamato diogenites as possible pieces of a single fall
- Mineralogical Examination of the Allan Hills Achondrites and Their Bearing on the Parent Bodies
- A Classification for Some Small Chondrites in the Yamato-74 and -75 Meteorites
- Some Unique Meteorites Found in Antarctica and Their Relation to Asteroids
- Mineralogical Examination of the Yamato-75 Achondrites and Their Layered Crust Model
- A Classification of the Yamato-75 Chondrites Based on Chemical Compositions of Olivines and Pyroxenes