Lignin is the most abundant aromatic compound on earth, and is second only to cellulose in its contribution to living terrestrial biomass. By using fungi to degrade lignin, a multitude of chemicals can potentially be used for fuel and industrial purposes.
Follow this link to learn more: http://www.fpl.fs.fed.us/documnts/pdf1997/hamme97a.pdf

A brief explanation of lignin, where it’s found, and how it can be used.
Follow this link to learn more: http://www.lignoworks.ca/content/what-lignin

This review highlights the research results, current status, opportunities, and challenges on engineering uses of the downstream products from biofuel industries as raw materials in the design and engineering of plastic resins, biodegradable plastics, bioadhesives, biorubber and biocomposites.
Follow this link to learn more: http://www.mendeley.com/research/wastes-undervalued-coproducts-biofuel-industries-raw-materials-new-industrial-products-greener-pathw/

Kraft-AQ pulping lignin was sequentially fractionated by organic solvent extractions and the molecular properties of each fraction were characterized by chemical degradation, GPC, UV, FT-IR, 13C-NMR and thermal analysis.
Follow this link to learn more: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2996737/

Could co-products like glycerin be useful for ranchers? This research suggests it may be a useful amendment for chicken and hog feed.
Follow this link to learn more: http://www.sciencedaily.com/releases/2007/10/071006085450.htm

This paper gives an insight of biofuel production and the status into the co-products obtained from this industry. Furthermore this work explores the possibility of these co-products as raw materials for value-added uses in material applications
Follow this link to learn more: http://www.sciencedirect.com/science/article/pii/S0961953411006477

This research focuses on using lignin to prolong the life of asphalt.
Follow this link to learn more: http://pubsindex.trb.org/view.aspx?id=848553

In this research article, the use of lignin-containing biofuel coproduct in pavement soil stabilization was explored as a new application area.
Follow this link to learn more: http://trid.trb.org/view.aspx?id=910454

This report features multiple chapters about the usage of residuals from plant-based biofuel production.
Follow this link to learn more: http://www.algadisk.eu/sites/default/files/BIOFUEL%20CO-PRODUCTS%20AS%20LIVESTOCK%20FEED.pdf