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首页> 外文期刊>Dynamic Chiropractic >Leaf essential oil, leaf methanolic extract and rose hips carotenoids from Rosa sempervirens L. growing in North of Tunisia and their antioxidant activities
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Leaf essential oil, leaf methanolic extract and rose hips carotenoids from Rosa sempervirens L. growing in North of Tunisia and their antioxidant activities

机译：突尼斯北部生长的Rosa sempervirens L.的叶片精油，叶片甲醇提取物和玫瑰果类胡萝卜素及其抗氧化活性

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Rosa sempervirensL. leaves and hips (fruits) were collected in two different sites in Northern Tunisia. The leaf essential oil was analyzed by gas chromatography (GC)and gas chromatography-mass spectrometry (GC-MS). Total phenols and flavonoids from the methanolic leaf extract were determined. Rose hips β-carotene content was evaluated byhigh-performance liquid chromatography(HPLC).The antioxidant activity was evaluated by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ABTS methods.Hexadecanoic acid was the major leaf essential oil component (26 to 42%). The leaf phenolics (1 to 8mg GAE/ml) and the total flavonoids (0.1 to 0.4 mgRE/ml), the rose hips β-carotene content (0.1 to 0.2mg/ml) and the leaf extract antioxidant capacities (DPPHIC502 to 20 μg/ml,ABTSIC501 to 10 μg/ml)varied greatly with the plant harvesting region.
机译：罗莎在突尼斯北部的两个不同地点收集了叶子和臀部（果实）。通过气相色谱（GC）和气相色谱-质谱（GC-MS）分析叶精油。测定了甲醇叶提取物中的总酚和类黄酮。采用高效液相色谱法（HPLC）评估玫瑰果中β-胡萝卜素的含量，采用2,2-二苯基-1-吡啶并乙酰肼（DPPH）和ABTS方法评估其抗氧化活性，十六烷酸是主要的叶片精油成分。 （26至42％）。叶片酚类（1至8mg GAE / ml）和总黄酮（0.1至0.4 mgRE / ml），玫瑰果β-胡萝卜素含量（0.1至0.2mg / ml）和叶片提取物的抗氧化能力（DPPHIC502至20 （μg/ ml，ABTSIC501至10μg/ ml）随植物收割区的不同而有很大差异。

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