Bactericidal and antioxidant effects of essential oils from Satureja montana L., Myristica fragrans H. and Cymbopogon flexuosus

Abstract

Significance and Impact of the Study:The study addresses natural alternatives in the selective control of pathogenic bacterial species resistant to antibiotics and the oxidative stress in infectious processes. Important results in relation to the antibacterial and antioxidant activities of essential oils from S. montana, M. fragrans. and C. flexuosus were found. Essential oils can act in the oxidative process, and they can disturb the cytoplasmic membrane by interfering with the phospholipid bilayer of the cell wall, increasing the permeability and loss of cell constituents and causing cell death of bacteria. Thus, the use of essential oils is very promising for the development of new antimicrobials.

Design of three-component essential oil extract mixture from Cymbopogon flexuosus, Carum carvi, and Acorus calamus with enhanced antioxidant activity

“…As of to date, there have been several investigations reported on the antioxidant potential of EOs from the three plants using different in vitro tests, including DPPH, ABTS, ORAC, FRAP, and β-carotene bleaching tests 14 , 15 , 45 – 48 .…”

The antibacterial, antioxidant, and insecticidal activities of essential oils from Thymus vulgaris L., Salvia officinalis L., and Ocimum basilicum L.

“…Thus, a lower IC 50 denotes greater antioxidant activity for the essential oil being studied. In determining antioxidant activity through DPPH free radical scavenging, discoloration from purple to yellow occurs when antioxidants are present (Rezende et al, 2022). The highest levels of antioxidant activities were observed for the BHT control (IC 50 9.89 ± 0.08 μg mL −1 ), followed by the essential oil from T. vulgaris (IC 50 231.13 ± 0.53 μg mL −1 ), as is presented in Table 3.…”

“…However, synthetic insecticides have many side effects, such as environmental problems, human health, and insect resistance. Essential oils, which are a complex mixture of terpenes and phenylpropanoids (Ferreira et al, 2019; Majeed et al, 2023; Rezende et al, 2022; Wang et al, 2023), proved to be a good alternative to synthetic products because their constituents can act synergistically, in addition to having different modes of action that could delay the development of resistance.…”

“…As an alternative to the use of synthetic products, essential oils have been extensively studied because they have proven biological properties (De Souza et al, 2022; Rezende et al, 2022). Taking into account the fact that the bioeffects of essential oils can vary according to their chemical composition, the present study sought to investigate the biological activities of essential oils extracted from three food condiments: Thymus vulgaris L., Salvia officinalis L., and Ocimum basilicum L., popularly known as thyme, sage, and basil, respectively, purchased in bulk.…”

Spice-Derived Phenolic Compounds: Potential for Skin Cancer Prevention and Therapy

“…Additionally, nutmeg has been used in traditional medicine to treat anxiety, gastrointestinal discomfort, insomnia rheumatism, and also as an aphrodisiac [138,139]. Moreover, it has been used in several pharmacological actions such as antidiabetic [85], anti-inflammatory, analgetic [140,141], antimicrobial [142,143], hepatoprotective [144], or antioxidant [145] treatments. The effects of nutmeg are thought to be mediated by its bioactive constituents, which include lignans, neolignans, diphenyl alkanes, phenylpropanoids, terpenoids, alkanes, fatty acids, and fatty acid esters, as well as a few minor components like steroids, saponins, triterpenoids, and flavonoids.…”