研究了不同蒸馏方法对罗勒挥发油收率、成分及生物活性的影响

Natalija Đorđević, Stojan Mančić, Ivana T. Karabegović, D. Cvetković, J. Stanojević, D. Savić, B. Danilović
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引用次数: 2

摘要

罗勒(Ocimum basilicum L.)是一种芳香植物,以其独特的气味和治疗特性而闻名,从烹饪到替代医学都有广泛的应用。摘要研究了通过加氢蒸馏、微波辅助加氢蒸馏和无溶剂微波辅助加氢蒸馏得到的罗勒精油的化学成分、抑菌活性和抗氧化活性。气相色谱分析表明,三种精油的主要成分为芳樟醇(30.3 ~ 58.2%)和外阴-甲二醇(5.6 ~ 7.3%)。蒸馏法主要影响萜烯和芳香族化合物的含量。精油对大肠杆菌ATCC 25922和铜绿假单胞菌ATCC 27853的抑菌效果最好。所有得到的精油在120 min的孵育后都具有良好的抗氧化活性,不同的蒸馏方法有显著差异。结果表明,蒸馏方法对罗勒精油的化学成分、检测到的化合物、抗氧化活性和抑菌活性均有较大影响。微波辅助加氢蒸馏在油收率、能耗和环境影响方面均有显著差异,是一种比常规加氢蒸馏更适合的蒸馏工艺。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The effect of distillation methods on the yield, composition and biological activity of basil (Ocimum basilicum L.) essential oil
Basil (Ocimum basilicum L.) is an aromatic plant, well known for its characteristic scent and healing properties, which has a wide application, from cooking to alternative medicine. The objective of this work was to evaluate the chemical composition, antimicrobial and antioxidant activity of basil essential oil obtained by hydrodistillation, microwave-assisted hydrodistillation and solvent-free microwave-assisted hydrodistillation. Gas chromatography analysis showed that the main components present in all three essential oils were linalool (30.3-58.2%) and epi-a-cadinol (5.6-7.3%). The distillation method mainly affected the content of terpenes, and aromatic compounds. The essential oils expressed good antimicrobial activity, most effective against Escherichia coli ATCC 25922, while the Pseudomonas aeruginosa ATCC 27853 was the most resistant strain. Good antioxidant activity was established after 120 min of incubation for all obtained essential oils with a significant difference regarding the applied distillation method. The results showed a great influence of the distillation method on the chemical composition, detected compounds, as well as antioxidant potential and antimicrobial activity of basil essential oils. The use of microwave assisted hydrodistillation has shown a significant difference in oil yield, energy consumption and environmental impact, which makes it a more suitable distillation process compared to conventional hydrodistillation.
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