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Essential oil variation and antioxidant capacity of Mentha pulegium populations and their relation to ecological factors
Biochemical Systematics and Ecology ( IF 1.6 ) Pub Date : 2020-08-01 , DOI: 10.1016/j.bse.2020.104084
Saeed Mollaei , Mostafa Ebadi , Saeid Hazrati , Biuck Habibi , Fatemeh Gholami , Mohammad Mahmoodi Sourestani

Abstract Mentha pulegium L. is an aromatic herb belonging to the Lamiaceae family, a wild plant which is distributed in different areas of Iran. In this research, we evaluated the variability of essential oil content and compositions of 12 M. pulegium populations. Essential oils were analyzed using gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS) methods. The essential oils content varied from 0.22 to 1.63% w/w within different populations. Twenty-nine compounds were identified which represent 83.4–98.7% of the total essential oil. The most significant essential oil compounds among the studied population were identified using the principal components analysis (PCA-biplot). According to the PCA-biplot, the major compounds were pulegone (2.5–51.7%), menthone (0.2–25.3%), limonene (0.0–35.4%), 1,8-cineol (0.0–33.4%), piperitenone oxide (0.2–55.2%), and trans-piperitone epoxide (0.0–28.5%). Besides, hierarchical cluster analysis indicated that the studied populations were classified into two main clusters based on the essential oil components. The canonical correspondence analysis (CCA) indicated that some environmental factors could influence the phytochemical constituents as well as the antioxidant activity. The temperature and altitude were effective environmental factors with regards to 1–8 cineol, limonene and menthone content, while average rainfall was the most effective factor with respect to trans-piperitone epoxide, piperitenone oxide, and pulegone content. Our results consequently showed that environmental factors had a significant effect on the essential oil content and its antioxidant activity in M. pulegium populations.

中文翻译:

薄荷种群的精油变异和抗氧化能力及其与生态因子的关系

摘要 薄荷为唇形科的芳香草本植物,是分布于伊朗不同地区的野生植物。在这项研究中,我们评估了 12 M. pulegium 种群的精油含量和组成的变异性。使用气相色谱 (GC) 和气相色谱/质谱 (GC/MS) 方法分析精油。在不同人群中,精油含量从 0.22% 到 1.63% w/w 不等。鉴定出 29 种化合物,占精油总量的 83.4-98.7%。使用主成分分析 (PCA-biplot) 确定了研究人群中最重要的精油化合物。根据 PCA-biplot,主要化合物是胡薄荷酮 (2.5–51.7%)、薄荷酮 (0.2–25.3%)、柠檬烯 (0.0–35.4%)、1,8-桉树脑 (0.0–33.4%)、胡椒烯酮氧化物 (0.2–55.2%) 和反式胡椒酮环氧化物 (0.0–28.5%)。此外,层次聚类分析表明,研究人群根据精油成分分为两个主要聚类。典型对应分析(CCA)表明,一些环境因素会影响植物化学成分和抗氧化活性。温度和海拔是影响 1-8 桉树脑、柠檬烯和薄荷酮含量的有效环境因素,而平均降雨量是影响反式胡椒酮环氧化物、胡椒烯酮氧化物和胡薄荷酮含量的最有效因素。我们的结果因此表明,环境因素对 M. pulegium 种群的精油含量及其抗氧化活性有显着影响。和反式胡椒酮环氧化物 (0.0–28.5%)。此外,层次聚类分析表明,研究人群根据精油成分分为两个主要聚类。典型对应分析(CCA)表明,一些环境因素会影响植物化学成分和抗氧化活性。温度和海拔是影响 1-8 桉树脑、柠檬烯和薄荷酮含量的有效环境因素,而平均降雨量是影响反式胡椒酮环氧化物、胡椒烯酮氧化物和胡薄荷酮含量的最有效因素。我们的结果因此表明,环境因素对 M. pulegium 种群的精油含量及其抗氧化活性有显着影响。和反式胡椒酮环氧化物 (0.0–28.5%)。此外,层次聚类分析表明,研究人群根据精油成分分为两个主要聚类。典型对应分析(CCA)表明,一些环境因素会影响植物化学成分和抗氧化活性。温度和海拔是影响 1-8 桉树脑、柠檬烯和薄荷酮含量的有效环境因素,而平均降雨量是影响反式胡椒酮环氧化物、胡椒烯酮氧化物和胡薄荷酮含量的最有效因素。我们的结果因此表明,环境因素对 M. pulegium 种群的精油含量及其抗氧化活性有显着影响。层次聚类分析表明,研究人群根据精油成分分为两个主要聚类。典型对应分析(CCA)表明,一些环境因素会影响植物化学成分和抗氧化活性。温度和海拔是影响 1-8 桉树脑、柠檬烯和薄荷酮含量的有效环境因素,而平均降雨量是影响反式胡椒酮环氧化物、胡椒烯酮氧化物和胡薄荷酮含量的最有效因素。我们的结果因此表明,环境因素对 M. pulegium 种群的精油含量及其抗氧化活性有显着影响。层次聚类分析表明,研究人群根据精油成分分为两个主要聚类。典型对应分析(CCA)表明,一些环境因素会影响植物化学成分和抗氧化活性。温度和海拔是影响 1-8 桉树脑、柠檬烯和薄荷酮含量的有效环境因素,而平均降雨量是影响反式胡椒酮环氧化物、胡椒烯酮氧化物和胡薄荷酮含量的最有效因素。我们的结果因此表明,环境因素对 M. pulegium 种群的精油含量及其抗氧化活性有显着影响。
更新日期:2020-08-01
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