This work has shown that the flower stalks of the plant
F. communis could be used for ethanol production, although
the yield of 55.8 cm3 kg1 dry flower stalks is low, compared
to other materials like that of A. aestivus, 83.72 cm3 kg1
tubers, [8] or the theoretical yield of potatoes that ranges
100e120 cm3 kg1 tubers according to the starch content of the
variety [5]. For commercial applications, a method should be
found to increase the efficiency of juice extraction from the
stalks as happens by sugar canes. The case of F. communis is
more difficult due to the fibrous and solid construction of the
stalks.