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林业科学 ›› 2008, Vol. 44 ›› Issue (10): 98-102.doi: 10.11707/j.1001-7488.20081017

• 论文 • 上一篇    下一篇

杨树木醋液的化学成分分析及抑菌试验

尉 芹 马希 徐明霞   

  1. (1.西北农林科技大学林学院 杨凌 712100; 2.西北农林科技大学理学院 杨凌 712100)
  • 收稿日期:2008-01-07 修回日期:1900-01-01 出版日期:2008-10-25 发布日期:2008-10-25
  • 通讯作者: 马希汉

Bacteriostasis and Chemical Components of Pyroligneous Acid from Poplar Wood

Wei Qin1,Ma Xihan2,Xu Mingxia1   

  1. (1. College of Forestry, Northwest A&F University Yangling 712100; 2. College of Sciences, Northwest A&F University Yangling 712100)
  • Received:2008-01-07 Revised:1900-01-01 Online:2008-10-25 Published:2008-10-25

摘要:

对干馏法制取、不同温度段采集到的杨树木醋液的抑菌效果进行研究,并对高温度段的化学成分用GCMS进行分析。结果表明:150~300 ℃温度段木醋液除对大肠杆菌抑制效果差于对照庆大霉素外,对其他细菌的抑制作用均强于抗菌素;300~510 ℃温度段木醋液抑菌效果均好于对照庆大霉素,说明高温度段的木醋液具有很强的抑菌作用。300~510 ℃收集的木醋液约含有41种化学成分,其中主要成分为酸类、酚类、酮类、醇类、醛类和酯类等。在所有化合物中,乙酸含量最高,占总量的17.10%,其次为苯酚,含量为11.36%。初步分析确定其抑菌活性成分为乙酸和酚类物质。

关键词: 杨树, 木醋液, GCMS分析, 化学成分, 抑菌活性

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