Chemical Composition of Pyroligneous Acid Obtained from Eucalyptus GG100 Clone

Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry
A S PimentaKássio M G Lima

Abstract

The present study aimed to characterize the chemical composition of pyroligneous acid (PA) obtained from slow pyrolysis of the clone GG100 of Eucalyptus urophylla × Eucalyptus grandis. The efficiency of extraction of organic compounds by using different solvents-dichloromethane (DCM), diethyl ether (DE) and ethyl acetate (EA)-was evaluated. Wood discs were collected and carbonized at a heating rate of 1.25 °C/min until 450 °C. Pyrolysis gases were trapped and condensed, yielding a crude liquid product (CLP), which was refined to obtain pure PA. Then liquid-liquid extraction was carried out. Each extracted fraction was analyzed by GC-MS and the chemical compounds were identified. Experimental results showed that a larger number of chemical compounds could be extracted by using DCM and EA in comparison to diethyl ether DE. A total number of 93 compounds were identified, with phenolic compounds being the major group, followed by aldehydes and ketones, furans, pyrans and esters. Higher contents of guaiacol, phenol, cresols and furfural seem to explain the antibacterial and antifungal activity shown by PA, as reported previously in the literature. Experimental data indicated that the organic phase extracted from GG100 PA consists of...Continue Reading

References

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Sep 3, 2016·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Jyh-Ferng YangLi-Yeh Chuang

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Citations

Nov 11, 2018·Environmental Science and Pollution Research International·Fabiane Grecco da Silva PortoIrene Teresinha Santos Garcia
Feb 24, 2019·International Journal of Molecular Sciences·Yuying WangYihong Ge
Dec 21, 2020·Journal of Applied Microbiology·W N C SoaresF M C Feijó

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