Antibacterial activities of rosemary (Rosmarinus officinalis L.) essential oil and ethanol extract

Open Access Research Journal of Multidisciplinary Studies Pub Date : 2022-01-30 DOI:10.53022/oarjms.2022.3.1.0073

Yeddes Walid, Hammami Majdi, Khammassi Saber, Grati Affes Taycir, Aidi Wannes Wissem, Saidani-Tounsi Moufida

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引用次数: 1

Abstract

The purpose of this study was to determine the chemical composition and antibacterial potential of rosemary essential oil and ethanol extract to improve its physicochemical and antibacterial properties. the essential oil yield of rosemary leaves was 1.76 % and the predominant compounds were 1,8-cineole (57.55 %), camphor (8.82 %), α-pinene (8.83 %), borneol (5.54 %) and camphene (2.36 %). Rosemary extract had an important amount of total phenolic content with 28.47 mg GAE/g DW. However, flavonoids and condensed tannins were weakly present in rosemary extract having 2.59 mg QE/g and 1.02 mg CE/g, respectively. Rosemary ethanol extract was mainly characterized by the predominance of carnosic acid (58.71 mg /g) and rosmarinic acid (16.51 mg/g). The antibacterial activity of rosemary essential oil and ethanol extract was determined against Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Campylobacter jejuni, Salmonella enterica, Bacillus subtilis and Enterococcus faecalis.

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迷迭香精油和乙醇提取物的抑菌活性

本研究的目的是测定迷迭香精油及其乙醇提取物的化学成分和抑菌潜力，以提高其理化性能和抑菌性能。迷迭香叶挥发油得率为1.76%，主要成分为1,8-桉叶油脑(57.55%)、樟脑(8.82%)、α-蒎烯(8.83%)、冰片(5.54%)和樟烯(2.36%)。迷迭香提取物总酚含量为28.47 mg GAE/g DW。迷迭香提取物中黄酮类化合物和浓缩单宁含量较弱，分别为2.59 mg QE/g和1.02 mg CE/g。迷迭香乙醇提取物以鼠尾草酸(58.71 mg/g)和迷迭香酸(16.51 mg/g)为主。测定了迷迭香精油和乙醇提取物对大肠杆菌、金黄色葡萄球菌、铜绿假单胞菌、空肠弯曲杆菌、肠沙门氏菌、枯草芽孢杆菌和粪肠球菌的抑菌活性。

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Open Access Research Journal of Multidisciplinary Studies

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