野生百里香（Thymus zygis L. ssp：精油的化学成分、抗氧化和抗菌活性

IF 2.1 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Open Chemistry Pub Date : 2024-06-24 DOI:10.1515/chem-2024-0050

Farah Aabouch, Badr Satrani, Mouna Ameggouz, Ismail Ettaleb, Amine Assouguem, Mohammed Kara, Riaz Ullah, Ahmed Bari, Sawinder Kaur, Mohamed Ghanmi, Abdellah Farah, Mohamed Ouajdi, Saoussan Annemer, Jamila Dahmani

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引用次数: 0

摘要

近来，从植物中提取的天然物质得到了越来越多的研究和认可。例如，精油（EOs）具有抗氧化和抗菌特性，可应用于农业食品、医药和化妆品等不同领域。在摩洛哥，与生态系统多样性相呼应的植物多样性异常丰富，但尚未揭示其全部秘密。因此，本研究旨在确定化学成分，并评估分别从胡塞马和马莫拉地区采集的百里香（Thymus zygis L. ssp.使用 Clevenger 型仪器通过水蒸馏法提取桉叶油。气相色谱/质谱（GC/MS）分析确定了 T.zygis 的 54 种成分，占总成分的 92.65%，E. camaldulensis 的 55 种成分，占总成分的 99.60%。在 T. zygis 的环氧乙烷中发现的主要成分是 δ-松油醇（27.64%），其次是 δ-3-蒈烯（15.7%）、百里酚（14.17%）和脱水芳樟醇（4.99%）。E. camaldulensis 环氧乙烷中的主要化合物是 1,8-蒎烯（43.61%）、γ-松油烯（11.71%）、α-松油醇（10.58%）和对伞花烯（4.93%）。利用 2,2-二苯基-1-苦基肼法和铁还原抗氧化能力（FRAP）测试，研究了这些油的抗氧化特性。对两种革兰氏阳性菌（金黄色葡萄球菌和枯草杆菌）和两种革兰氏阴性菌（黄微球菌和大肠杆菌）的抗菌活性进行了评估。这两种环氧乙烷都显示出明显的抗氧化活性，但效果不如参考抗氧化剂槲皮素和儿茶素。抗菌研究表明，T. zygis 和 E. camaldulensis 多元芳香烃对所研究的细菌具有很强的活性和良好的抑制特性（最低抑制浓度）。

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Wild Thymus zygis L. ssp. gracilis and Eucalyptus camaldulensis Dehnh.: Chemical composition, antioxidant and antibacterial activities of essential oils

Natural substances extracted from plants have been increasingly studied and recognized, recently. Essential oils (EOs), for example, possess antioxidant and antibacterial properties, enabling their application across different sectors like agro-food, pharmaceuticals, and cosmetics. In Morocco, exceptional plant diversity, mirroring the diversity of ecosystems, has not yet revealed all its secrets. Therefore, the aim of this study is to determine the chemical composition and evaluate the antibacterial and antioxidant activities of EOs from Thymus zygis L. ssp. gracilis and Eucalyptus camaldulensis Dehnh. collected in the El Hoceima and Mamora regions, respectively. The EOs were extracted by hydrodistillation employing a Clevenger-type apparatus. Gas chromatography/mass spectrometry (GC/MS) analyses identified 54 constituents representing 92.65% of the total for T. zygis and 55 components representing 99.60% for E. camaldulensis. The primary components found in the EO of T. zygis are δ-terpineol (27.64%), followed by δ-3-carene (15.7%), thymol (14.17%), and dehydrolinalool (4.99%). The main compounds in E. camaldulensis EO are 1,8-cineole (43.61%), γ-terpinene (11.71%), α-terpineol (10.58%), and p-cymene (4.93%). The antioxidant properties of these oils were investigated by utilization of the 2,2-diphenyl-1-picrylhydrazyl method and the ferric reducing antioxidant power (FRAP) test. The antibacterial activity was assessed against two Gram-positive bacteria (Staphylococcus aureus and Bacillus subtilis) and two Gram-negative bacteria (Micrococcus luteus and Escherichia coli). Both EOs showed significant antioxidant activity but were less effective than reference antioxidants quercetin and catechin. Antibacterial studies demonstrated strong activity of T. zygis and E. camaldulensis EOs against the studied bacteria, as well as good inhibitory properties (minimum inhibitory concentration).

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来源期刊

Open Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

3.80

自引率

4.30%

发文量

审稿时长

6 weeks

期刊介绍： Open Chemistry is a peer-reviewed, open access journal that publishes original research, reviews and short communications in the fields of chemistry in an ongoing way. The central goal is to provide a hub for researchers working across all subjects to present their discoveries, and to be a forum for the discussion of the important issues in the field. The journal is the premier source for cutting edge research in fundamental chemistry and it provides high quality peer review services for its authors across the world. Moreover, it allows for libraries everywhere to avoid subscribing to multiple local publications, and to receive instead all the necessary chemistry research from a single source available to the entire scientific community.