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首页> 外文期刊>Quality Assurance and Safety of Crops & Foods >The effect of harvest time on the bioactive properties and volatile components of lavender (Lavandula officinalis)
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The effect of harvest time on the bioactive properties and volatile components of lavender (Lavandula officinalis)

机译：收获时间对生物活性的影响属性和薰衣草挥发组分(薰衣草花officinalis)

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摘要

This study was designed to determine the effect of harvest time on the bioactive properties and volatile components of flowers, leaves and stems of Lavandula officinalis. The bioactive properties were examined in terms of total phenolic content, antiradical activity and antioxidant capacity by the Folin-Ciocalteu, 1.1-diphenyl-2-picrylhydrazyl scavenging and phosphomolybdenum methods, respectively. Volatile components were detected with gas chromatography-mass spectrometry. Water and methanol were used for extraction solvent and three different parts of the day (morning, midday and evening) were selected for harvest time. Water extracts had higher total phenolic contents (337.2-771.5 mg gallic acid equivalents (GAE)/g dry extract) than methanolic extracts (170.3-320.8 mg GAE/g dry extract), and in general, midday values were less than morning and evening rates and had a significant difference depending on harvest time. A similar feature was observed in respect to antioxidant properties. The inhibition rates (%) of flowers and leaves were higher than those of the stems for either extract. In terms of the volatile components linalool, camphor, 1,8-cineole, terpinen-4-ol and isoborneol were the most representative compounds in the samples.
机译：本研究旨在确定的影响在生物活性属性和收获时间挥发组分的花,叶子和茎的薰衣草花officinalis。属性方面的检查和酚类内容,反激进主义的活动Folin-Ciocalteu抗氧化能力,1.1 -diphenyl-2-picrylhydrazyl扫气和phosphomolybdenum方法,分别。组件与气体检测相色谱分析-质谱法。用于提取溶剂和甲醇三天的不同部分(早上,中午和晚上)被选为收获时间。水提取物总酚含量较高没食子酸(337.2 - -771.5毫克当量/ g (GAE)干比methanolic提取物提取)(170.3 - -320.8毫克GAE / g干燥提取),并在一般情况下,不到早上和中午值晚上率和有显著差异根据收获时间。在抗氧化性能。抑制率(%)的花和叶子是高于茎的提取。芳樟醇、樟脑、1 8-cineole terpinen-4-ol和异龙脑是最具代表性的化合物的样本。

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