This study examined the chemical structural characteristics of cellulolytic enzyme lignin isolated from switchgrass focusing on comparisons between wild-type control and caffeic acid 3-O-methyltransferase (COMT) down-regulated transgenic line. Nuclear magnetic resonance (NMR) techniques including 13C. 31P. and two-dimensional 13C-1H heteronuclear single quantum coherence (HSQC) as wel... https://parisnaturalfoodes.shop/product-category/niacin/