One key factor in ensuring the success of biofuel technologies, which are expected to see high growth, is the availability of biomass resources. Although the targets set in Europe and France for the replacement of petroleum products in the transport sector by 2010 can be met by converting farm surpluses into biofuels, in order to proceed further, it will be necessary to mobilize a resource that is more abundant and potentially less costly: lignocellulosic materials, i.e. wood or straw. The future of biofuels depends on establishing the much-awaited "second generation" biofuel pathways able to convert lignocellulosic materials to ethanol, biodiesel and biokerosene.