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首页> 外文会议>International Conference on Energy Efficiency and Agricultural Engineering >Chemical composition and biological activity of pennyroyal (Mentha pulegium L.) grown in Turkey
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Chemical composition and biological activity of pennyroyal (Mentha pulegium L.) grown in Turkey

机译：土耳其生长的Pennyroy（Mentha Pulegium L.）的化学成分及生物活性

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The chemical composition of the pennyroyal (Mentha pulegium L.) essential oil and extracts, grown in Turkey has been determined. The major components of essential oil (0.37%) obtained by hydrodistillation was found to be oxygenated monoterpenes cis-piperitone epoxide (32.04%) and piperitenone oxide (31.90%). Extracts obtained with 95 and 70% ethanol were also obtained from the pennyroyal leaves which determined the total polyphenol content expressed in gallic acid equivalents (GAE) per gram dry extract weight (dw) and the total flavonoid content expressed as quercetin equivalent (QE) per gram dw. Their content in the extract with 95% ethanol is 20.62 mg GAE/g dw and 5.92 QE/g dw respectively, and in the extract with 70% ethanol 32.55 mg GAE/g dw and 7.75 QE/g dw respectively. The antioxidant activity of the pennyroyal extracts was determined by the method of 2,2-diphenyl-1-picrylhydra-zyl (DPPH) and a modified method of cupric reducing antioxidant capacity (CUPRAC). The antioxidant activity of 95% ethanol extract is 557.74 mM Trolox® equivalent (TE)/g dw (CUPRAC) and 242.36 mM TE/g dw (DPPH). The 70% ethanol extract showed higher levels of antioxidant activity, the highest being reported in the CUPRAC method (1100.61 mM TE/g dw). The dry leaves are also determined for their content of chlorophyll and carotenoids.
机译：在土耳其生长的Pennyroystoy（Mentha Puregium L.）精油和提取物的化学成分已经确定。发现通过氢化物获得的精油（0.37％）的主要成分被发现是氧化单波通顺式哌啶环氧化物（32.04％）和哌酮氧化哌啶（31.90％）。用95和70％乙醇获得的提取物也从Pennyroyal叶中获得，该叶片确定了每根克干燥提取物重量（DW）的无碱酸等当量（GAE）中表达的总多酚含量，并且总黄酮含量表达为槲皮素等同物（QE）克明。它们在萃取物中的含量分别为95％乙醇的含量分别为20.62mg，分别为5.92 qe / g dw，并分别在70％乙醇32.55mg gae / g dw和7.75 qe / g dw中。通过2,2-二苯基-1-Picrylhydra-Zyl（DPPH）的方法和铜铜减少抗氧化能力（Cuprac）的改性方法确定了页啡蛋白提取物的抗氧化活性。 95％乙醇提取物的抗氧化活性为557.74mmTrolox®等效物（TE）/ g DW（Cuprac）和242.36mm TE / G DW（DPPH）。 70％乙醇提取物显示出较高水平的抗氧化活性，在富普拉克方法中报道的最高（1100.61mm TE / G DW）。还确定干叶的叶绿素和类胡萝卜素的含量。

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