Assertion: kraft lignin | /r/HasProperty | scheme 3a
Facets:
Source sentences:
text: Since β-O-4 linkages have been reported to survive the kraft pulping process (Froass et al. 1996; Jiang and Argyropoulos 1999; Jiang and Argyropoulos 1994; Liitiä et al. 2003), the reported formation of formaldehyde at relatively low temperatures (Fenner and Lephardt 1981) can be explained by γ elimination of methylol (CH 2 -OH) groups within residual β-O-4 linkages in kraft lignin (Scheme 3A) (