Assertion: lignin's role | /r/HasProperty | central
Facets:
Source sentences:
text: Lignin plays a central role in carbon cycling on Earth.
text: Lignin could play a central role as a new chemical feedstock in a biorefinery concept (Laurichesse and Avérous 2014) and can be used as a green alternative to many petroleum-derived products, such as oil-based resins, rubber additives, thermoplastic (Kaewtatip and Thongmee 2013), carbon fibers (Kadla et al.2002; Eckert and Abdullah 2010), green hydrogels (Thakur and Thakur 2015), and activated carbon (Ragan and Megonnel 2011), as well as, for generation of vanillin, vanillic acid, dispersing agents, polymer filters, DMSO, phenol, and ethylene, etc.