Theoretical ethanol yields for lignocellulosic feedstocks.

*Calculations were based on the compositional values listed in Table 1 [5].

^{^}Calculations based on data obtained in this study.

^#Assumes that 56.7% dry w/w of the whole 3 year old plants is leaf material [8].

^†Assumes that juice accounted for 69% of plant wet weight; A. americana leaf was 88.5% w/w water; and A. tequilana leaf was 83.3% w/w water.

^‡ Tonnes of wet weight rather than dry weight. Units for data are given in table headings. Constants for ethanol calculations are consistent with the National Renewable Energy Laboratory Theoretical Ethanol Yield Calculator [73]: 1.111 kg monomeric C6 sugar per 1 kg polymeric C6 polymer (glucan, fructan); 1.1363 kg monomeric C5 sugar per 1 kg polymeric C5 polymer (xylan, arabinan); 0.51 kg of ethanol produced from 1 kg of sugar. Productivity per hectare is based on previous studies [18,74–78].

Theoretical ethanol yields for lignocellulosic feedstocks.