(ADPnews) - May 13, 2011 - German biofuel producer Verbio Vereinigte BioEnergie AG (ETR:VBK) said its earnings before interest and tax (EBIT) in the first quarter of 2011 fell to EUR 3.2 million (USD 4.6m) from EUR 5.1 million a year earlier due to higher depreciation and amortisation.