Evaluation of antimicrobial activity of Pterocarpus extracts
Evaluation of antimicrobial activity of Pterocarpus extracts
复制标题
紫檀提取物的抗菌活性评价
DOI：
10.1016/j.indcrop.2019.111668
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发表时间：
2019-11-15
影响因子：
5.9
通讯作者：
Xu, Bin
中科院分区：
文献类型：
--
作者：
Cai, Mengke;Lv, Huangfei;Xu, Bin
紫檀是市场上应用最广泛的木材资源之一。但利用率一直很低。为了提高紫檀加工剩余物的利用率，以及探讨其耐腐性好的原因。本研究对山胡椒属植物的抗真菌机制进行了初步探讨，对3种紫檀属植物的水提物和醇提物进行了研究。采用气相色谱-质谱联用技术对抗菌活性成分进行分析。意大利白杨（Populus euramevicana cv.“I-214”）木材浸泡在浸提液中，然后接种云芝和密珊瑚。研究了提取物的抗菌性能，并利用气相色谱-质谱分析了这些性能的机制。结果表明，乙醇提取物的得率显著高于水提取物。大豆紫檀和大果紫檀的乙醇提取物和水提取物得率最高，分别为28.59%和14.31%。随着浓度的增加，安哥拉紫檀和玛卡果紫檀水提物的抑菌活性逐渐增强，而其他提取物的抑菌活性基本不变。气相色谱-质谱分析确定了相当数量的酚类，酮类，胺类和芳香族化合物在所有提取物，这是一致的，其抗菌活性，并建议化学品之间的协同作用。
Pterocarpus is one of the most widely used timber resources on the market. But the utilization rate has been low. In order to improve the utilization of Pterocarpus processing residue, as well as explore the reason of its good decay-resistance. In this study, the antifungal mechanism of Peterocarpes spp., aqueous extracts and ethanol extracts of three Pterocarpus species were studied. The antimicrobial active factors were analyzed by gas chromatography-mass spectrometry. Italian poplar (Populus euramevicana cv. 'I-214') wood was immersed in the extracts and then inoculated with both Coriolus versicolor and Glaeophyllum trabeum. The antimicrobial properties of the extracts were studied, and the mechanism underlying these properties were analyzed using gas chromatography-mass spectrometry. The results showed that the yield of ethanol extracts from the three Pterocarpus species was significantly higher than that of aqueous extracts. Pterocarpus soyauxii and Pterocarpus macarocarpus produced the highest yield of ethanol extracts (28.59%) and aqueous extracts (14.31%), respectively. With increasing concentrations, the antimicrobial activities of aqueous extracts of Pterocarpus angolensis and Pterocarpus macarocarpus gradually increased, while the antimicrobial activity of other extracts remained constant. Gas chromatography-mass spectrometry analysis identified a considerable number of phenols, ketones, amines, and aromatic compounds in all extracts, which is consistent with their antimicrobial activity and suggests synergism among the chemicals.