Mapping Ethanol Production Sources in Brazil Through Stable Isotopes

AUTOR(ES)

Silva, Gilson C., Moreira, Marcelo Z., Scofield, Arthur L., Godoy, José M. O., Almeida, Lilian F., Wagener, Angela L. R.

FONTE

J. Braz. Chem. Soc.

DATA DE PUBLICAÇÃO

2015-06

RESUMO

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.

Documentos Relacionados

• Relationships of stable isotopes, water-rock interaction and salinization in fractured aquifers, Petrolina region, Pernambuco State, Brazil
• Ethanol production in Brazil: a bridge between science and industry
• THE USE OF STABLE ISOTOPES IN BIOLOGICAL AND MEDICAL RESEARCH
• Use of carbon and nitrogen stable isotopes to study the feeding ecology of small coastal cetacean populations in southern Brazil
• Measurement of de novo hepatic lipogenesis in humans using stable isotopes.