In USA, the Biobased Products Act of 2000 encourages
the tripling of the use of biobased materials and
energy by 2010. The increasing demand for low priced
agricultural commodities such as corn and wheat are also
promoting factors [8]. In Europe, the European Commission
has posed recently a Directive 1999/31/EC ‘‘on
the landfill of waste’’ according to which a progressive
reduction is planned for the amount of the organic
biodegradable fraction in the municipal solid waste toa level of 75% in year 2006, 50% in year 2009, and 35%
in year 2016 of the total organic fraction present in the
municipal solid waste in the year 1995 [9].