Laboratory of Agri-Food, Biotechnology and Valorization of Plant Resources, Phytochemistry and Pharmacology of Medicinal Plants Unit, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech 40000, Morocco.
Department of Physiology and Pharmacology "V. Erspamer", Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy.
Molecules. 2022 Jan 21;27(3):692. doi: 10.3390/molecules27030692.
In the present study, the phytochemical composition and bioactivities of (AM) and (AR), two ecotypes collected in the Demnate road and Essaouira regions, respectively, were studied to highlight a pharmacological interest and to enable possible pharmaceutical development. To this end, methanolic and ethyl acetate extracts were prepared for each ecotype by fractionation; next, their phytochemical composition was evaluated by spectrophotometric and chromatographic analysis. Moreover, in line with the available evidence for spp. and their traditional use, a screening of bioactivities, including antioxidant, hypoglycemic, antiglycative, chelating, and antibacterial activities, was performed. The extracts were characterized by high amounts of polyphenols, tannins, and flavonoids, especially in the methanolic extracts; these samples were also enriched in carotenoids despite a lower chlorophyll content. Chlorogenic acid and rutin were the major identified compounds. The extracts also showed interesting hypoglycemic, antiglycative, and antibacterial properties, although with differences in efficacy and potency. Present results provide more scientific basis to the ethnopharmacological uses of spp. and suggest a further interest in AM and AR ecotypes as natural sources of bioactive compounds and/or phytocomplexes for possible pharmaceutical and nutraceutical developments.
在本研究中,对分别在德姆纳特路和埃萨乌伊拉地区采集的两个生态型的(AM)和(AR)的植物化学成分和生物活性进行了研究,以突出其药理学意义,并为可能的药物开发提供依据。为此,通过分级分离法制备了每种生态型的甲醇和乙酸乙酯提取物;接下来,通过分光光度法和色谱分析评估了它们的植物化学成分。此外,根据现有的关于 spp.及其传统用途的证据,对包括抗氧化、降血糖、抗糖化、螯合和抗菌活性在内的生物活性进行了筛选。提取物的特点是含有大量的多酚、单宁和类黄酮,尤其是在甲醇提取物中;尽管叶绿素含量较低,但这些样品还富含类胡萝卜素。绿原酸和芦丁是主要的鉴定化合物。提取物还表现出有趣的降血糖、抗糖化和抗菌特性,尽管在疗效和效力方面存在差异。目前的结果为 spp.的民族药理学用途提供了更多的科学依据,并表明 AM 和 AR 生态型作为生物活性化合物和/或植物复合物的天然来源,可能具有进一步的药物和营养开发价值。