Amino Acids in the Yamato-74662 Meteorite, an Antarctic Carbonaceous Chondrite
P(論文) 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 amin...
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ftnipr:oai:nipr.repo.nii.ac.jp:00001054 2024-09-09T19:09:03+00:00 Amino Acids in the Yamato-74662 Meteorite, an Antarctic Carbonaceous Chondrite Shimoyama, Akira Ponnamperuma, Cyril Yanai, Keizo 1979-12 application/pdf https://nipr.repo.nii.ac.jp/record/1054/files/KJ00000011598.pdf eng eng Memoirs of National Institute of Polar Research. Special issue 15 196 205 AA00733561 https://nipr.repo.nii.ac.jp/record/1054/files/KJ00000011598.pdf 1979 ftnipr 2024-06-17T04:00:22Z P(論文) 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. departmental bulletin paper Other/Unknown Material Antarc* Antarctic Memoirs of National Institute of Polar Research Polar Research National Institute of Polar Research Repository, Japan Antarctic Yamato ENVELOPE(35.583,35.583,-71.417,-71.417) |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
P(論文) 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. departmental bulletin paper |
author |
Shimoyama, Akira Ponnamperuma, Cyril Yanai, Keizo |
spellingShingle |
Shimoyama, Akira Ponnamperuma, Cyril Yanai, Keizo Amino Acids in the Yamato-74662 Meteorite, an Antarctic Carbonaceous Chondrite |
author_facet |
Shimoyama, Akira Ponnamperuma, Cyril Yanai, Keizo |
author_sort |
Shimoyama, Akira |
title |
Amino Acids in the Yamato-74662 Meteorite, an Antarctic Carbonaceous Chondrite |
title_short |
Amino Acids in the Yamato-74662 Meteorite, an Antarctic Carbonaceous Chondrite |
title_full |
Amino Acids in the Yamato-74662 Meteorite, an Antarctic Carbonaceous Chondrite |
title_fullStr |
Amino Acids in the Yamato-74662 Meteorite, an Antarctic Carbonaceous Chondrite |
title_full_unstemmed |
Amino Acids in the Yamato-74662 Meteorite, an Antarctic Carbonaceous Chondrite |
title_sort |
amino acids in the yamato-74662 meteorite, an antarctic carbonaceous chondrite |
publishDate |
1979 |
url |
https://nipr.repo.nii.ac.jp/record/1054/files/KJ00000011598.pdf |
long_lat |
ENVELOPE(35.583,35.583,-71.417,-71.417) |
geographic |
Antarctic Yamato |
geographic_facet |
Antarctic Yamato |
genre |
Antarc* Antarctic Memoirs of National Institute of Polar Research Polar Research |
genre_facet |
Antarc* Antarctic Memoirs of National Institute of Polar Research Polar Research |
op_relation |
Memoirs of National Institute of Polar Research. Special issue 15 196 205 AA00733561 https://nipr.repo.nii.ac.jp/record/1054/files/KJ00000011598.pdf |
_version_ |
1809823323466498048 |