LCA Food 2012 in Saint Malo, France! - Manifestations et colloques ...

PARALLEL SESSION 4B: DIET 8 th Int. Conference on LCA in the
Agri-Food Sector, 1-4 Oct 2012
Figure1. Scores for NNR15, NAR15 and NRF9 of foods sorted according to NRF9.
3.2. E/N index
In this study the E/N (environmental/nutrient) index was applied in the categories of climate change and
eutrophication potential. In general the E/N index values for the climate impact varied more than the nutrient
index values, but not so much for eutrophication. For the climate impact (Figure 2) animal-based foods and
rice, especially refined rice, have the highest values, while carrot and olive oil have the lowest values. Values
for sausage, pork, rainbow trout, milk, whole grain and refined rice and rapeseed oil vary the most among the
different methods.
For the eutrophication potential (Figure 3), rainbow trout have by far the highest values following sausage,
pork, milk, fatless and natural yoghurt, rapeseed oil and strawberry, while soy drink and carrot have the
lowest values. However, the scale of the E/N index values for eutrophication potential is so large that differences
among the lowest foods cannot be seen in the general picture.
The E/N index values are very preliminary as the LCA values are approximations based on LCA results
for raw material production of main ingredients: they are not results from the full LCAs. In addition, both
environmental and nutritional data used in the study are general data, not data from production in a specific
production chain. The data are well suited for methodology development, but not for comparisons between
products in general or between products from specific production chains.
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