EUCALYPTUS BIOMASS RESIDUES FROM AGRO-FOREST AND PULPING INDUSTRIES AS SOURCES OF HIGH-VALUE TRITERPENIC COMPOUNDS

authors	Domingues, RMA; Patinha, DJS; Sousa, GDA; Villaverde, JJ; Silva, CM; Freire, CSR; Silvestre, AJD; Neto, CP
nationality	International
journal	CELLULOSE CHEMISTRY AND TECHNOLOGY
author keywords	biorefinery; Eucalyptus nitens; Eucalyptus grandis; Eucalyptus urograndis (Eucalyptus grandis x Eucalyptus urophylla); Eucalyptus maidenni; bark; triterpenic acids; ursolic acid; oleanolic acid; betulinic acid
abstract	A comparative study on the triterpenic acids composition of the outer barks of several Eucalyptus species (E. globulus, E. grandis, E. urograndis, E. maidenii and E. nitens) is reported. The contents of the main triterpenic acids identified in the five species varied between 4.5 g/kg in E. urograndis and 21.6 g/kg in E. nitens. It has been observed that, out of these Eucalyptus species outer barks, those from temperate and Mediterranean zones, namely E. Miens and E. globulus, are richer in triterpenic acids than the species from sub-tropical and tropical regions. Furthermore, E. globulus outer bark is clearly the richest in ursane acids, while E. Miens outer bark is the richest in oleanane and lupane acids.
publisher	EDITURA ACAD ROMANE
issn	0576-9787
year published	2011
volume	45
issue	7-8
beginning page	475
ending page	481
web of science category	Materials Science, Paper & Wood
subject category	Materials Science
unique article identifier	WOS:000299143700006