Chemical components from the bark layers of Eucalyptus pellita F Muell.

Abstract The utilization of E. pellita bark as waste is still not widely carried out due to a lack information about the chemical content. Therefore, current study aimed analyze content using pyrolysis-gas chromatography-mass spectrometry (PyGCMS). results showed total extractive pellita’s inner bark, outer and mix-bark was 12.17%, 16.19%, 14.85%, respectively. holocellulose 65.45%, while were 60.68% 59.29%, alpha-cellulose 57.97%, barks 56.43% 54.14%; lignin clason 25.39%, for 28% 26.72%, pyGCMS that extractives catechol, 3-methyl-catechol, resorcinol, 3,5-Dimethoxy-4-hydroxytoluene, (E)-3,3′-Dimethoxy-4,4′-dihydroxystilbene