埃及产百里香和牛至精油、提取物的抗氧化和抗菌活性研究
发布时间:2025-02-11 20:32
[目的]本文对埃及产的百里香(Thymus vulgaris L.)和牛至(Origanum vulgare L.)的化学成分、抗氧化和抗菌活性进行了研究。[方法]本文采用GC-MS法和福林酚方法对样品中的化学成分和多酚物质进行了分析,同时使用DPPH试剂和抑菌圈实验评价样品的抗氧化和抗菌效果。[结果]埃及产百里香精油中主要含有百里香酚(45.19%)、p-伞花烃(13.59%)、香芹酚(7.65%)和松油烯(6.82%),牛至精油中主要有香芹酚(52.46%)、松油烯-4-醇(7.43%)、顺-β-萜品醇(5.64%)和松油烯(4.73%)。百里香和牛至的精油中的多酚含量分别为228.78 mg/g和129.43 mg/g,表现出显著的DPPH自由基清除能力,而残渣中的多酚含量相对较少(123.68 mg/g和138.26 mg/g),但抗氧化能力要更强。在抗菌能力方面,两种提取物均对Klebsiella pneumonia(35.8±0.89)mm和(37±0.47)mm的抑制能力最强,而百里香和牛至的精油则分别对Rhodotorula mucilaginosa(25.7±0.27...
【文章页数】:14 页
【文章目录】:
0 Introduction
1 Materials and Methods
1.1 Plant Materials
1.2 Extraction of essential oil
1.3 Gas chromatography/mass spectrometry analysis of oils
1.4 Preparation of plants extracts (PEs)
1.5 DPPH radical scavenging assay
1.6 Determination of total phenolic contents (TPC)
1.7 Antimicrobial activity
1.7.1 Selected microorganisms
1.7.2 Antimicrobial test
1.8 Statistical analysis
2 Results and Discussion
2.1 Chemical composition of Essential Oils
2.2 Total Phenolic Content and Antioxidant Activity of Essential Oils (EOs)
2.3 Total Phenolic Content and Antioxidant Activitiy of plants extracts (PEs)
2.4 Antimicrobial activity
3 Conclusions
本文编号:4033813
【文章页数】:14 页
【文章目录】:
0 Introduction
1 Materials and Methods
1.1 Plant Materials
1.2 Extraction of essential oil
1.3 Gas chromatography/mass spectrometry analysis of oils
1.4 Preparation of plants extracts (PEs)
1.5 DPPH radical scavenging assay
1.6 Determination of total phenolic contents (TPC)
1.7 Antimicrobial activity
1.7.1 Selected microorganisms
1.7.2 Antimicrobial test
1.8 Statistical analysis
2 Results and Discussion
2.1 Chemical composition of Essential Oils
2.2 Total Phenolic Content and Antioxidant Activity of Essential Oils (EOs)
2.3 Total Phenolic Content and Antioxidant Activitiy of plants extracts (PEs)
2.4 Antimicrobial activity
3 Conclusions
本文编号:4033813
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