Substrate	Reference(s)	Comment(s)
kraft lignin	Xu, Z., Qin, L., Cai, M., Hua, W., & Jin, M. (2018). Biodegradation of kraft lignin by newly isolated Klebsiella pneumoniae, Pseudomonas putida, and Ochrobactrum tritici strains. Environmental Science and Pollution Research, 25(14), 14171–14181. https://doi.org/10.1007/s11356-018-1633-y	-