Chemical composition and in vitro antioxidant and antihyperglycemic activities of clove, thyme, oregano, and sweet orange essential oils

Radünz, Marjana; Camargo, Taiane Mota; Hackbart, Helen Cristina dos Santos; Alves, Pâmela Inchauspe Corrêa; Radünz, André Luiz; Gandra, Eliézer Ávila; Zavareze, Elessandra da Rosa

doi:10.1016/j.lwt.2020.110632

Cited by 44 publications

(31 citation statements)

References 32 publications

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“…The clove essential oil was composed of 58% of the area referring to the eugenol compound, and 41% of caryophyllene. These results are consistent with those reported by other studies, where eugenol is considered the major compound of clove essential oil, being isolated or in synergism with the other compounds, responsible for the biological potentials of the oil, such as antioxidant, antimicrobial, and antihyperglycemic activity (Radünz et al, 2019;Kalaiselvi et al, 2019;Radünz et al, 2021).…”

Section: Resultssupporting

confidence: 93%

Antimicrobial potential of a bioactive coating based on chitosan incorporated with clove essential oil in hamburger-like meat product

Alves

Radünz

Borges

et al. 2021

RSD

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The food industry is looking for strategies to prevent microbial growth in order to ensure food safety and shelf life. However, the use of synthetic preservatives, such as nitrate and nitrite in meat products, entails risks to human health. An alternative is the utilization of essential oils, widely known for their antimicrobial properties. This work aimed the antimicrobial potential of a bioactive coating based on chitosan incorporated with clove essential oil in in hamburger-like meat product. Through the analysis of antimicrobial activity by diffusion in agar and broth, there was an action against Gram-positive and Gram-negative bacteria. Regarding Staphylococcus aureus and Escherichia coli, the minimum inhibitory concentration (MIC) was 3.74 mg/mL and the minimum bactericidal concentration (MBC) was 374.33 mg/mL for both. In the micro atmospheric diffusion test, CEO reduced by up to 70 and 76% of the E. coli and S. aureus bacteria development, respectively. CEO was applied as an active component in chitosan-based coatings in hamburger-like meat, in which it was able to promote the control of microbial proliferation of Total Coliforms, Coliforms at 45 ⁰C and Coagulase-Positive Staphylococcus throughout 7 days of storage under refrigeration. It is concluded that the bioactive coating based on chitosan incorporated with clove essential oil promotes microbiological control in hamburger-like meat product.

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Section: Resultssupporting

confidence: 93%

Antimicrobial potential of a bioactive coating based on chitosan incorporated with clove essential oil in hamburger-like meat product

Alves

Radünz

Borges

et al. 2021

RSD

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“…In vitro, antioxidant and antihyperglycemic activities of thyme and oregano essential oils were compared. Thyme potently inhibited α-glucosidase (98.9%), against 50.5% for oregano [ 81 ].…”

Section: Resultsmentioning

confidence: 99%

Ethnopharmacological Survey and Comparative Study of the Healing Activity of Moroccan Thyme Honey and Its Mixture with Selected Essential Oils on Two Types of Wounds on Albino Rabbits

Mekkaoui

Assaggaf

Qasem

et al. 2021

Foods

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Wound healing consists of several continuous phases involving various cells and chemical intermediates. As a rich source of nutrition elements, honey has proved to have potential benefits in the treatment of various diseases. The present study was designed to investigate the healing effect of a honey mixture with selected essential oils on chemical and thermal wound models in rabbits. Dressing mixtures of Thymus vulgaris honey with three essential oils (Origanum vulgare, Rosmarinus officinalis, and Thymus vulgaris) were prepared and applied daily in the treatment groups. These essential oils were rich in phytochemicals and had significant antibacterial activity against four selected ATCC bacterial strains. Madecasol ointment was used as a standard control. The healing effect of the mixtures was evaluated by measuring wound surface area and comparing healing time. The results showed that the healing rate in the treatment groups was significantly higher than that of the untreated group and standard group. The best healing effect for burns was seen in the mixture of honey and Thymus vulgaris essential oil, which had wound closure rates of 85.21% and 82.14% in thermal- and chemical-induced burns, respectively, and showed the shortest healing time (14 days) in comparison to other groups. Therefore, it can be concluded that honey mixtures have significant beneficial effects on skin wound healing and, thus, they may be used as a healing agent in different types of wounds in humans after specific clinical trials.

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“…The plants in this study were chosen based on two criteria: (i) intense usage for their strong antiseptic activities (thyme [20][21][22][23] and oregano [8,11,[38][39][40]), and (ii) aromatherapy, cosmetic, and household purposes (lavender [26,27] and lavandin [12]).…”

Section: Discussionmentioning

confidence: 99%

“…The EO is mainly composed of monoterpenoids, giving it its specific, pungent smell (γ-terpinene, p-cymene, thymol, and carvacrol). Its EO presents intense pharmacological activities (antibacterial, antifungal, anticancer, anti-inflammatory, antioxidant) [8,11,[38][39][40] and has a high bicyclic monoterpenoid content (α-thujene, sabinene, germacrene D) [41,42].…”

Section: Introductionmentioning

confidence: 99%

Chemical and Biochemical Characterization of Essential Oils and Their Corresponding Hydrolats from Six Species of the Lamiaceae Family

Popa

Lupitu

Moţ

et al. 2021

Plants

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Many plants belonging to the Lamiaceae family are rich in essential oils (EOs) which are intensively used for aromatherapy, food and beverage flavoring, alternative medicine, cosmetics, and perfumery. Aerial parts of Thymus vulgaris L., Thymus pannonicus All., Lavandula angustifolia L., Lavandula x intermedia, Origanum vulgare L., and Origanum vulgare var. aureum L. were subjected to hydrodistillation, and both resulting fractions were analyzed. The purpose of this study was to determine the chemical composition, antioxidant activity, and total phenolic content of six essential oils and their corresponding hydrolats (HDs) through GC-MS and spectrophotometric analyses. Overall, 161 compounds were identified, some found exclusively in essential oils and others in hydrolats, making them individual products with specific end purposes. The total phenolic content was the highest for the Thymus vulgaris L. EOs (3022 ± mg GAE L−1), because of its high phenolic oxygenated monoterpenes content (thymol and carvacrol) and the smallest for the Lavandula angustifolia L. EOs (258.31 ± 44.29 mg GAE L−1), while hydrolats varied from 183.85 ± 0.22 mg GAE L−1 for Thymus vulgaris L. HD and 7.73 mg GAE L−1 for Thymus pannonicus All. HD. Significant antioxidant effects determined through DPPH• and ABTS•+ assays were also observed in samples with higher hydrophilic compounds. The highest antioxidant activity was determined for Thymus vulgaris L. EO and its corresponding HD. Although EOs are the principal traded economic product, HDs represent a valuable by-product that could still present intense antiseptic activities, similar to their corresponding EOs (thyme and oregano), or have multiple aromatherapy, cosmetics, and household applications (lavender and lavandin).

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Chemical composition and in vitro antioxidant and antihyperglycemic activities of clove, thyme, oregano, and sweet orange essential oils

Cited by 44 publications

References 32 publications

Antimicrobial potential of a bioactive coating based on chitosan incorporated with clove essential oil in hamburger-like meat product

Antimicrobial potential of a bioactive coating based on chitosan incorporated with clove essential oil in hamburger-like meat product

Ethnopharmacological Survey and Comparative Study of the Healing Activity of Moroccan Thyme Honey and Its Mixture with Selected Essential Oils on Two Types of Wounds on Albino Rabbits

Chemical and Biochemical Characterization of Essential Oils and Their Corresponding Hydrolats from Six Species of the Lamiaceae Family

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