(SeeNews) - Oct 14, 2013 - Brazilian hydrous ethanol prices may jump by up to 21% to BRL 1.33 (USD 0.6/EUR 0.4) per litre by the first quarter of 2014 to limit the expected hike in demand if the discussed 5% increase of petrol (gasoline) prices is implemented, governmental sources were quoted as saying by business daily Valor Economico on Friday.