食品科学

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枣核木醋液化学成分分析及其抑菌活性

张立华,王 丹,宫文哲,唐婷婷   

  1. 1.枣庄学院生命科学学院,山东 枣庄 277160;2.枣庄市环保局,山东 枣庄 277800
  • 出版日期:2016-07-25 发布日期:2016-07-26
  • 基金资助:

    山东省自然科学基金项目(ZR2013BL018)

Chemical Constituents and Antimicrobial Activities of Pyroligneous Acid from Jujube Pit

ZHANG Lihua, WANG Dan, GONG Wenzhe, TANG Tingting   

  1. 1. College of Life Science, Zaozhuang University, Zaozhuang 277160, China;
    2. Zaozhuang Municipal Environmental Protection Bureau, Zaozhuang 277800, China
  • Online:2016-07-25 Published:2016-07-26

摘要:

为了充分利用枣核资源,采用干馏法(150~400 ℃)制得枣核木醋液,并采用气相色谱-质谱联用仪分析其化学成分,通过对大肠杆菌、青霉菌及石榴干腐病菌的抑菌实验评价其抑菌活性。结果显示,枣核木醋液中含有35 种化合物,主要为酚类、酮类、有机酸类、醛类和杂环化合物等,其中含量最多的是酚类、酮类化合物和有机酸,三者占总检出成分的71.01%。枣核木醋液对大肠杆菌、青霉菌及石榴干腐病菌均有抑制作用,并呈现剂量依赖效应,对3 种菌的最小抑菌浓度分别为1.25%、2.5%和0.625%。表明枣核木醋液具有较强的抑菌活性,初步分析酚类物质和有机酸是其抑菌的主要有效成分。

关键词: 枣核, 木醋液, 化学成分, 抑菌活性

Abstract:

To achieve the comprehensive utilization of jujube pit, pyroligneous acid was prepared by pyrolyzing jujube
pit at 150 to 400 ℃ to analyze its chemical constituents by gas chromatography-mass spectrometry (GC-MS) and test its
antimicrobial activities against Escherichia coli, Penicillium glaucum and Coniella granati. The results showed that a total
of 35 compounds were detected by GC-MS analysis from the pyroligneous acid, mainly phenols, ketones, organic acids,
aldehydes, heterocyclic compounds, etc. Among them, the most abundant were phenols, ketones and organic acid, which
accounted for 71.01% of the total amount of compounds detected. All pyroligneous acids with three different concentrations
showed significant antimicrobial activities in a dose-dependent manner. The minimum inhibitory concentrations (MIC) of
the pyroligneous acid against Escherichia coli, Penicillium glaucum and Coniella granati were 1.25%, 2.5% and 0.625%,
respectively. These results preliminarily suggested that phenols and organic acids were the active components responsible
for the antimicrobial activity of pyroligneous acid.

Key words: jujube pit, pyroligneous acid, chemical constituents, antimicrobial activity

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