(ADPnews) - Dec 15, 2010 - Petrobras Biocombustivel, the biodiesel subsidiary of Brazil's federal oil and gas giant Petrobras (SAO:PETR3; NYSE:PBR), is not interested in the acquisition of a stake in local sector firm ETH Bioenergia, Petrobras Biocombustivel's president, Miguel Rosseto, said Wednesday.