杨树木醋液的化学成分分析及抑菌试验

doi:10.11707/j.1001-7488.20081017

Abstract

Abstract:

Effects of bacteriostasis of the pyroligneous acid fractions collected from different temperatures during the pryrolisis of the poplar wood were investigated. Chemical components of the fraction that exhibited better bacteriostasis were analyzed by GCMS. The results showed that the fraction of pyroligneous acid collected in the temperature range of 150～300 ℃ exhibited higher bacteriostasis activity than the control (gentamicin) to all the bacteria tested except for Escherichia coli. The fraction in the temperature range of 300～510 ℃ exhibited stronger bacteriostasis activity than the control to all the bacteria tested without exception, indicating that the fraction collected in the higher temperature range exhibited stronger bacteriostasis activity. Chemical components of pyroligneous acid mainly were organic acids, phenols, ketones, alcohols, aldehydes, and esters. In all the classes of the components examined, the content of acetic acid was the highest, accounting for 17.10%, then phenols, accounting for 11.36%. After the preliminary analysis, it was considered that organic acids and phenols were the active components of bacteriostasis activity.

Key words: poplar tree, pyroligneous acid, GCMS analysis, chemical component, bacteriostasis activity

Wei Qin;Ma Xihan;Xu Mingxia. Bacteriostasis and Chemical Components of Pyroligneous Acid from Poplar Wood[J]. Scientia Silvae Sinicae, 2008, 44(10): 98-102.

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Bacteriostasis and Chemical Components of Pyroligneous Acid from Poplar Wood

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