Mapping Ethanol Production Sources in Brazil Through Stable Isotopes
| Autor: | Silva, Gilson C., Moreira, Marcelo Z., Scofield, Arthur L., Godoy, José M. O., Almeida, Lilian F., Wagener, Angela L. R. |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
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| Zdroj: | Journal of the Brazilian Chemical Society v.26 n.6 2015 Journal of the Brazilian Chemical Society Sociedade Brasileira de Química (SBQ) instacron:SBQ Journal of the Brazilian Chemical Society, Volume: 26, Issue: 6, Pages: 1283-1296, Published: 01 JUN 2015 |
| Popis: | Ethanol is a biofuel produced in Brazil through fermentation of sugarcane, requiring vast plantation areas and water availability. The present work aimed at testing isotopic markers as tools for ethanol source appointment or certification of origin. For this, oxygen and hydrogen isotopic patterns were determined in plant-water, soil-water, rainwater, and water from reservoirs and some rivers in four sugarcane crop areas. The isotopic fingerprint of carbon and hydrogen in ethanol produced in the respective mills was also determined. Samples were collected in 2011 and 2012 in crop areas of the state of Amazonas (North), Mato Grosso (Center-West), São Paulo (Southeast) and Rio Grande do Sul (South). The substantial and complex influence of the hydrological cycle on the ethanol δD and the small δ13C variations constrain the use of isotopes for the intended objectives. |
| Databáze: | OpenAIRE |
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