Botanical and Geographical Origin Identification of Industrial Ethanol by Stable Isotope Analyses of C, H, and O
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概要
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The isotope ratios of carbon, hydrogen, and oxygen of rectified alcohols were determined to distinguish their botanical and geographical origins by continuous flow-isotope ratio mass spectrometry (CF-IRMS). The 13C/12C and 18O/16O ratios of 27 fermented alcohols with known origins showed clusters derived from each botanical origin, viz. corn, sugarcane, wheat, and tapioca. C3 and C4 plants were easily distinguishable by the 13C/12C ratio. Sugarcane and corn are both C4 plants, and they showed small differences in isotope ratios. The combination plots of the D/H and 18O/16O ratios enabled us to designate the geographical origins of alcohol derived from the same kind of crop, such as Chinese or American corn. The chemically synthetic and fermented alcohols were clearly distinguished by D/H and 18O/16O ratios. Isotope ratios were useful for origin identification of alcohol. We plan to construct a database of alcohol isotope ratios to determine the origins of raw materials in alcohol.
- 2005-11-23
著者
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Yoshida Naohiro
Department of Cardiology, Kanazawa Cardiovascular Hospital
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Ishida Fujii
R And D Center Alcohol Enterprise Head Office New Energy And Industrial Technology Development Organ
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Uemura Ryu
Department Of Environmental Science And Technology Tokyo Institute Of Technology
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Uemura Ryu
Department Of Environmental Science And Technology Interdisciplinary Graduate School Of Science And
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Yoshida Naohiro
Departement Of Cardiology Kanazawa Cardiovascular Hospital
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Yamada Keita
Sorst Project Jst
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Goto Shingo
R And D Center Alcohol Enterprise Head Office New Energy And Industrial Technology Development Organ
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SATO Michikatsu
R and D Center, Alcohol Enterprise Head Office, New Energy and Industrial Technology Development Org
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Yoshida Naohiro
Department Of Environmental Science And Technology Interdisciplinary Graduate School Of Science And
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Sato Michikatsu
R And D Center Alcohol Enterprise Head Office New Energy And Industrial Technology Development Organ
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ISHIDA-FUJII Keiko
R and D Center, Alcohol Enterprise Head Office, New Energy and Industrial Technology Development Organization
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