Department of Pharmaceutical Sciences, Faculty of Pharmacy, Nutritional and Health Sciences, University of Calabria, I-87036 Arcavacata di Rende (CS).
Chem Biodivers. 2011 Mar;8(3):518-31. doi: 10.1002/cbdv.201000050.
Twenty samples of two caper species were collected from various natural habitats of Calabria (South Italy). A sample program was designed in order to cover all taxa and morphotypes present in the studied area, trying to correlate ecological conditions, phytochemical content, and biological activities. These species were characterized through the detection, isolation, and capillary GC-GC/MS quantitative evaluation of chemical markers (phytosterols and vitamin E). The antioxidant activity of MeOH caper extracts was assayed using 1,1-diphenyl-2-picrylhydrazyl (DPPH) and β-carotene bleaching tests. The chemical investigation showed a different composition according to the species and the populations. The best free radical (DPPH) scavenging activity was exerted by Capparis orientalis sample C4 (collected near Copanello village, granodiorite sea cliff) and Capparis sicula ssp. sicula sample C5 (collected near Tarsia village, clay soil). Sample C2 (Galatrella Valley, clay soil) showed the highest inhibition of linoleic acid oxidation with more efficacy than propyl gallate, the reference drug.
从意大利南部卡拉布里亚的各种自然生境中采集了 20 份两种滨藜属植物的样本。设计了一个样本方案，以涵盖研究区域内存在的所有分类群和形态型，同时尝试将生态条件、植物化学物质含量和生物活性进行关联。通过检测、分离和毛细管 GC-GC/MS 对化学标志物（植物甾醇和维生素 E）进行定量评估，对这些物种进行了特征描述。使用 1,1-二苯基-2-苦基肼（DPPH）和β-胡萝卜素漂白试验测定了 MeOH 滨藜提取物的抗氧化活性。化学研究表明，根据物种和种群的不同，组成也有所不同。Capparis orientalis 样品 C4（在靠近Copanello 村的花岗闪长岩海崖处采集）和 Capparis sicula ssp. sicula 样品 C5（在靠近 Tarsia 村的粘土地上采集）表现出最好的自由基（DPPH）清除活性。Galatrella 山谷的 C2 样本（粘土地）对亚油酸的氧化抑制作用最强，其效果优于参考药物丙基 gallate。
