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首页> 外文期刊>Acta Horticulturae >Chemical constituents of Phyteuma orbiculare, a forgotten food plant of Valais.
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Chemical constituents of Phyteuma orbiculare, a forgotten food plant of Valais.

机译：Phyteuma orbiculare的化学成分，瓦莱州一家被人们遗忘的食用植物。

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Numerous wild plants have been used as foods in the past by local Alpine populations. Most of these have fallen into oblivion, and very little is known about their constituents and biological properties. We recently initiated a project to identify forgotten plants which could potentially be taken into cultivation and re-established as food plants with interesting sensory properties and a phytochemical composition which might have beneficial effects on health. Based on an ethnobotanical survey in the Lower Valais region, and on considerations concerning the feasibility of large scale cultivation, the round-headed rampion (Phyteuma orbiculare, Campanulaceae), a perennial herb that was eaten in the past as a salad, was selected for a detailed phytochemical investigation. Different extracts of the aerial parts were submitted to a comprehensive metabolite profiling using a combination of TLC, HPLC-UV, HPLC-MS and off-line microprobe NMR analysis. Various secondary metabolites including saponins and flavonoids were detected in the aerial parts of P. orbiculare, and two saponins with structurally unique aglycons were isolated and characterized. Preliminary data on nutritionally valuable substances such as carotenes and fatty acids were obtained for a specimen collected near Orsieres (Valais). Further investigations on samples collected at different locations and at various vegetation stages are planned.
机译：过去，当地的高山居民已将许多野生植物用作食物。其中大多数已被遗忘，对其成分和生物学特性知之甚少。我们最近启动了一个项目，以鉴定被遗忘的植物，这些植物可以被种植并重新建立为具有令人感兴趣的感官特性和植物化学成分的食用植物，这些植物可能对健康产生有益的影响。根据下瓦莱州地区的植物学调查，并考虑到大规模种植的可行性，选择了过去常作为沙拉食用的多年生草本圆头斜纹菜（Phyteuma orbiculare，Campanulaceae）。详细的植物化学调查。使用TLC，HPLC-UV，HPLC-MS和离线微探针NMR分析相结合，对地上部分的不同提取物进行了全面的代谢物分析。在球形假单胞菌的地上部分检测到各种次生代谢产物，包括皂苷和类黄酮，并分离并鉴定了两种具有独特糖苷配基的皂苷。获得了在Orsieres（瓦莱州）附近采集的标本的营养价值物质（如胡萝卜素和脂肪酸）的初步数据。计划对在不同地点和不同植被阶段收集的样品进行进一步调查。

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