doi:10.1016/j.fuproc.2016.10.001engGarcía Rodríguez, ManuelBotella Abad, LucíaGil-Lalaguna, NoemíArauzo Pérez, JesúsGonzalo Callejo, AbertoSánchez Cebrián, José LuisAntioxidants for biodiesel: Additives prepared from extracted fractions of bio-oilART-2017-96922Unlike petroleum diesel, the chemical structure of biodiesel makes it prone to oxidation during long-term storage, thus involving fuel quality deterioration. Therefore, the addition of antioxidants is usually required to meet the quality standards for biodiesel commercialization. Synthetic sterically-hindered phenols have been usually employed for this purpose as free radical scavenging antioxidants. However, naturally occurring phenolics are also available, for example, in the bio-oil produced in the pyrolysis of lignocellulosic biomass. In this work, the antioxidant potential of extracted fractions of lignocellulosic bio-oil has been evaluated. Different organic solvents were tested as extraction agents, acetate esters being the best ones for incorporating bio-oil antioxidant compounds into biodiesel. In the best case, the incorporation of a small concentration of bio-oil compounds (< 4 wt.%) led to an improvement of the biodiesel oxidation stability of 475% which, in our case, was enough to meet the European standard requirement.2017http://zaguan.unizar.es/record/6335710.1016/j.fuproc.2016.10.001http://zaguan.unizar.es/record/63357oai:zaguan.unizar.es:63357info:eu-repo/grantAgreement/ES/DGA/GPTinfo:eu-repo/grantAgreement/ES/MINECO/ENE2013-41523-RFuel Processing Technology 156 (2017), 407-414by-nc-ndhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccess