W. Aufhammer et al., SUITABILITY OF THE GRAIN OF DIFFERENT CEREAL SPECIES FOR BIOETHANOL PRODUCTION DEPENDENT ON CULTIVARS AND GROWING CONDITIONS, Die Bodenkultur, 44(2), 1993, pp. 183-194
The grain of cereals is used as raw material for the production of bio
ethanol. Concerning this goal the suitability of defined grain materia
l sets of cereal species were investigated. With and without an additi
on of technical enzymes the alcohol output per unit of dry matter (l/d
t) of winter wheat, winter triticale and winter rye was analyzed. The
autoamylolytic quotient (AAQ) and the alcohol yield (l/ha) were calcul
ated. Grain material of several cultivars per species from two vegetat
ion periods and partly from different locations was available. As far
as the data allow comparisons, results are: With addition of technical
enzymes as compared to autoamylolytic processing the variation of the
alcohol output (l/dt) between and within species was evidently lower.
The variation within the species refered to effects of cultivars and
growing conditions. As compared to wheat, triticale and rye showed bet
ter auto-amylolytic properties, but rye did not reach the alcohol outp
ut levels of wheat and triticale. Alcohol outputs per unit dry matter
and grain yields per ha were not correlated. Alcohol yields per ha wer
e substantially influenced by the grain yields/ha. With and without an
addition of technical enzymes the alcohol yields/ha of the best wheat
cultivars exceeded those of the best triticale and rye cultivars.