FIG. 1.

Discrimination between grass and red clover herbage juices fermented for 6 days in the microsilo system with and without an L. plantarum inoculant (isolate Lp02). A cross-validated DFA plot (using 12 PCs accounting for 99.75% of the total variance within the data set) is shown. Both the training data (▴) and the test data (□) are represented. A clear discrimination can be seen between the four treatments (grass and red clover with and without an inoculant). This spectral heterogeneity was not reflected in the pH values measured. The circles around the data points are to improve clarity and are not of any mathematical significance.