Table 2.

Fermentable sugars in PMFJ in comparison to other typical energy plants

Plant type	Total fermentable sugar (g/L)	Dominant fermentable sugar	References
Paper mulberry	161.7	Glucose and fructose; 99%	Current study
Sweet sorghum	96–170	Sucrose; 45–81%	(Luo et al. 2014; Barcelos et al. 2016; Rolz et al. 2019; Yue et al. 2021; Jebril et al. 2021a, 2021b)
Sugar cane	151–220	Sucrose; 83–91%	(Silva et al. 2017; Thammasittirong et al. 2017; Solís-Fuentes et al. 2019; Vu et al. 2020)
Sugar beet	104–270	Sucrose; 87–96%	(Gumienna et al. 2014; Marzo et al. 2019; Zicari et al. 2019; Bahrami et al. 2020; Garofalo et al. 2020; Hoffmann et al. 2021)