The Use of teh Abundance Ratio of ~(13)C and ~(12)C Isotopes for Characterisation of the Origin of Ethyl Alcohol

摘要

During alcohol fermentation, the carbon isotope composition of ethyl alcohol produced depended on the substrate used and was characterized by the value of #delta#~(13)C equal to -24.7+-0.8 per thousand (maize grain) and -10+-0.1 per thousand (sugar cane). The isotope composition of carbon of ethyl alcohol obtained during catalytic hydroxylation of ethylene has a #delta#~(13)C of -30.6+-0.3 per thousand. The possibility of quantitative determination of specific components in mixtures of ethanol samples with various isotope compositions (chemical synthesis and alcohol fermentation of raw material from C_3- or C_4-plants) was shown.