In vitro antibacterial activities of essential oils and extracts of six herbals against gram-positive and gram-negative bacteria

被引:3
作者
Amin, Mansour [1 ,2 ]
Akrami, Sousan [3 ]
Haghparasty, Farkhondeh [2 ]
Hakimi, Atiyeh [2 ]
机构
[1] Ahvaz Jundishapur Univ Med Sci, Hlth Res Inst, Infect & Trop Dis Res Ctr, Ahvaz, Iran
[2] Ahvaz Jundishapur Univ Med Sci, Sch Med, Dept Microbiol, Ahvaz, Iran
[3] Univ Tehran Med Sci, Sch Med, Dept Microbiol, Tehran, Iran
关键词
Antibacterial activities; Essential oils; Gram-positive bacteria; Gram-negative bacteria; Herbals; Phytochemicals; ANTIMICROBIAL ACTIVITY; CARVACROL; THYMOL;
D O I
10.1007/s13530-022-00160-7
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Object: Considering the development of bacterial resistance to chemical antibiotics and their adverse effects on the environment and public health, there is a growing demand to replace them with plant-based derivatives or combine these green agents with antibiotics to give synergistic effects. In this study, the antimicrobial properties of essential oils and extracts of six medicinal plants from Ahvaz region, Iran, against 12 gram-positive and gram-negative bacteria were evaluated.Methods: The EOs and extracts were extracted using water distillation with Clevenger apparatus. We analyzed the chemical composition of essential oils obtained. The antimicrobial properties and determination of the minimum concentration of growth inhibition of herbals were investigated by the broth dilution technique.Results: All analyzed extracts and EOs showed antibacterial effects. The antimicrobial activity of Oliveria decumbens was strongest herbals with the least MIC ranges (0.008-0.1 mg/ml for EO, 0.9-20 mg/ml for extract), while the antibacterial effects of Artemisia vulgaris extract and Glycyrrhiza glabra EO with the highest MIC were weaker than the others. According to the effectiveness of plant extracts on bacteria, Pseudomonas aeruginosa was resistant to all extracts except Oliveria decumbens. In contrast, Bacillus cereus was more sensitive than other strains against analyzed EOs and extracts. In Oliveria decumbens, EO detected 18 components by GC/MS with accessible genuine standards, accounting for 98% of the oil content.Conclusion: It seems that due to the antimicrobial properties of the extracts and essential oils observed in this study, they can be used as an alternative to antimicrobial drugs after more extensive studies.
引用
收藏
页码:53 / 60
页数:8
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