The life cycle system of the product has been defined (from
the raw materials extraction and farming, to the final disposal
of the packaging of the product after its consumption) taking
into account the whole agri-food chain, as well as the functional
unit (the reference used to quantify all data), the system
boundaries and the time horizon considered. To define the
most suitable life cycle structure, life cycle assessments previously
undertaken have been considered [2e4].
The life cycle system (complete food chain) has been
divided into four phases, which are shown in Fig. 1 and are described
briefly as follows: