Laboratory for the optimization of agricultural production in sub humide zones, Faculty of Sciences, Department of Agronomy, University of Skikda, Skikda, Algeria.
Department of Agronomy, Faculty of Natural and life Sciences, University of El-Tarf, El-Tarf, Algeria.
Nat Prod Res. 2023 May;37(9):1583-1588. doi: 10.1080/14786419.2021.2024825. Epub 2022 Jan 11.
Ethnobotanical investigation was carried out using questionnaires among majority of El Kala (Algeria) inhabitants. The investigation found that lentisk ( L.) is widely used in traditional therapy, especially in gastrointestinal and dermatological problems. Bioactive phytochemicals were determined by LC-MS/MS, and 14, 13, and 12 compounds were identified in leaves, stems and seeds, respectively. Flavonoids and phenolic acids were the most abundant compounds. Moreover, total phenols (306.5 mg GAE/g), flavonoids (95.25 mg RE/g), and condensed tannins (170.75 mg CE/g) contents were determined in leaves. Also, essential oil composition was investigated using GC/MS and 27 aroma compounds were identified. Monoterpene and sesquiterpene hydrocarbons were the most abundant. Besides, antioxidant activity was performed by DPPH, β-carotene bleaching, and ferrous ions chelating tests; and leaves extracts were more effective (IC of 2.75, 3.45, 13.5 µg/ml), than essential oils (IC of 10.5, 70.5, 157.25 µg/ml), and standards (trolox, 4.75; BHT, 5.25 µg/ml), respectively.
采用问卷调查的方式对阿尔及利亚 El Kala 的大多数居民进行了民族植物学调查。调查发现，乳香黄连木（L.）在传统疗法中被广泛应用，特别是在胃肠道和皮肤病方面。通过 LC-MS/MS 确定了生物活性植物化学成分，分别在叶、茎和种子中鉴定出 14、13 和 12 种化合物。类黄酮和酚酸是最丰富的化合物。此外，叶中还测定了总酚（306.5mg GAE/g）、类黄酮（95.25mg RE/g）和缩合单宁（170.75mg CE/g）的含量。此外，还使用 GC/MS 研究了精油的组成，鉴定出 27 种香气化合物。单萜和倍半萜烃是最丰富的。此外，通过 DPPH、β-胡萝卜素漂白和亚铁离子螯合试验进行了抗氧化活性测试；叶提取物比精油（IC 分别为 10.5、70.5 和 157.25µg/ml）和标准品（trolox，4.75；BHT，5.25µg/ml）更有效（IC 分别为 2.75、3.45 和 13.5µg/ml）。
