Estimativa por infravermelho da concentração da unidade estrutural b-O-4 em ligninas de angiospermas tropicais Infrared estimates of the concentration of the b-o-4 structural unit in lignins of tropical angiosperms

<abstract language="eng">Five Björkman lignins, codified as AM, LL, GG, PP and AP, were isolated from wood species of Aspidosperma macrocarpum Mart., Lophanthera lactescens Ducke, Gallesia gorazema (Vell.) Miq., Peltogyne paniculata Bth. and Aspidosperma polyneuron Muell. Arg., respe...

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Bibliographic Details
Main Author: Heber dos Santos Abreu
Format: Article
Language:English
Published: Sociedade Brasileira de Química 1997-12-01
Series:Química Nova
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421997000600005