败酱科植物缬草 Valeriana officinalisL.s.l 为欧洲药典收载,它可作为温和镇静剂。其主要活性成分为挥发油、缬草酸及其衍生物以及缬草三酯。欧洲药典对后两类成分的质量标准尚无规定。作者研究了它们含量的季节性变化,确定了采集根和根茎的最佳时间,以便选择适于药用的植株。在 pH 值为5.6的沙性土壤种植缬草,间距为50 cm×30 cm。一块地在1989年春 Valeriana officinalis L.s.l is included in the European Pharmacopoeia as a mild sedative. Its main active ingredients are volatile oils, shikimic acid and its derivatives, and valerian triesters. The European Pharmacopoeia does not specify quality standards for the latter two components. The authors studied the seasonal changes in their contents and determined the best time to collect roots and rhizomes in order to select plants that are suitable for medicinal purposes. The barnyardgrass was planted in a sandy soil with a pH value of 5.6 with a spacing of 50 cm x 30 cm. A piece of land in the spring of 1989