Seasonal variation of the essential oil, valerenic acid and derivatives, and valepotriates in Valeriana officinalis roots and rhizomes, and the selection of plants suitable for phytomedicines
Seasonal variation of the essential oil, valerenic acid and derivatives, and valepotriates in Valeriana officinalis roots and rhizomes, and the selection of plants suitable for phytomedicines
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DOI：
10.1055/s-2006-957392
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发表时间：
1998-03-01
期刊：
影响因子：
2.7
通讯作者：
Scheffer, JC
中科院分区：
文献类型：
--
作者：
Bos, R;Woerdenbag, HJ;Scheffer, JC
1989-1993年对Voleriana officinalis植物精油、缬草酸及其衍生物和缬丙素的含量进行了测定。地下部分的收获在播种当年的8月开始，并持续到次年4月的最后一周。不同年份挥发油含量差异较大，但挥发油含量最高值出现在9月份，占干重的1.2%~ 2.1%（v/w）。在调查的植被时期，石油的成分基本保持不变。1989-1993年对5个药用葡萄品种的挥发油、缬草酸及其衍生物和缬丙三酯含量进行了测定，结果表明：缬草酸及其衍生物和缬丙三酯含量在2 ~ 3月达到最高值，分别为0.7- 0.9%（干重）和1.1-1.4%（干重）。本文中描述的选择程序最终产生了具有令人满意的精油含量（0.9%）以及高含量的缬草酸和衍生物（0.5%）的植物材料（1993年），其可以在播种年的9月收获。
During the seasons 1989-1993, Voleriana officinalis plants were investigated for their contents of essential oil, valerenic acid and derivatives, and valepotriates. Harvesting of the subterranean parts was started in August of the year in which the seeds were sown, and continued until the last week of April of the subsequent year. Despite marked variations from year to year, the maximum contents of essential oil in the subterranean parts of V. officinalis were found in September, ranging from 1.2% to 2.1% (v/w) based on dry weight (DW). Over the vegetation periods investigated, the composition of the oil remained more or less constant. Valerenic acid and its derivatives, and the valepotriates reached their maxima in February-March, with contents of 0.7-0.9 % (DW) and 1.1-1.4% (DW), respectively.During the period 1989-1993, five V. officinalis strains were investigated for their contents of essential oil, valerenic acid and derivatives, and valepotriates in order to select plants suitable for phytomedicines. The selection procedures described in this paper finally yielded plant material (in 1993) with a satisfactory content of essential oil (0.9%) combined with a high content of valerenic acid and derivatives (0.5%) which can be harvested in September of the year of sowing.