Dataset Information

Thymus mastichina: Composition and Biological Properties with a Focus on Antimicrobial Activity.

ABSTRACT: Thymus mastichina has the appearance of a semishrub and can be found in jungles and rocky lands of the Iberian Peninsula. This work aimed to review and gather available scientific information on the composition and biological properties of T. mastichina. The main constituents of T. mastichina essential oil are 1,8-cineole (or eucalyptol) and linalool, while the extracts are characterized by the presence of flavonoids, phenolic acids, and terpenes. The essential oil and extracts of T. mastichina have demonstrated a wide diversity of biological activities. They showed antibacterial activity against several bacteria such as Escherichia coli, Proteus mirabilis, Salmonella subsp., methicillin-resistant and methicillin-sensitive Staphylococcus aureus, Listeria monocytogenes EGD, Bacillus cereus, and Pseudomonas, among others, and antifungal activity against Candida spp. and Fusarium spp. Additionally, it has antioxidant activity, which has been evaluated through different methods. Furthermore, other activities have also been studied, such as anticancer, antiviral, insecticidal, repellent, anti-Alzheimer, and anti-inflammatory activity. In conclusion, considering the biological activities reported for the essential oil and extracts of T. mastichina, its potential as a preservative agent could be explored to be used in the food, cosmetic, or pharmaceutical industries.

SUBMITTER: Rodrigues M

PROVIDER: S-EPMC7766293 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Thymus mastichina: Composition and Biological Properties with a Focus on Antimicrobial Activity.

Rodrigues Márcio M Lopes Ana Clara AC Vaz Filipa F Filipe Melanie M Alves Gilberto G Ribeiro Maximiano P MP Coutinho Paula P Araujo André R T S ARTS

Pharmaceuticals (Basel, Switzerland) 20201219 12

Thymus mastichina has the appearance of a semishrub and can be found in jungles and rocky lands of the Iberian Peninsula. This work aimed to review and gather available scientific information on the composition and biological properties of T. mastichina. The main constituents of T. mastichina essential oil are 1,8-cineole (or eucalyptol) and linalool, while the extracts are characterized by the presence of flavonoids, phenolic acids, and terpenes. The essential oil and extra ...[more]

PMID: 33352776

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Project description:Chitosan-based coatings and films have been widely studied, demonstrating to be an efficient and eco-friendly approach to extend the shelf life of food products. The effect of incorporating Thymus capitatus essential oil (TCEO) at different concentrations (0.5, 1.0, and 1.5% w/w) on physical, mechanical and antimicrobial properties of chitosan films was studied. The antimicrobial activity of the films was evaluated by agar diffusion method, against 23 spoiling microorganisms isolated from tuna and swordfish (ten Shewanella baltica, one S. morhuae, one S. putrefaciens, two Pseudomonas fluorescens, two P. fragi, five Serratia spp., one Aeromonas molluscorum, and one Acinetobacter radioresistens) and Shewanella putrefaciens ATCC 49138. The films exerted antimicrobial activity against all the tested strain, although not proportional to increasing TCEO concentration. In particular, S. baltica was the most sensitive species and the inhibition was stable after 72 h. In general, TCEO incorporation in chitosan films, significantly (p?<?0.05) decreased the water permeability (from 0.577?±?0.060 gmm/kPahm2 at 61% R.U. for chitosan to 0.487?±?0.037 gmm/kPahm2 for the film with 1.5% TCEO), the elongation at brake (from 27.322?±?2.35% for chitosan to 14.695?±?3.99% for the film with 1.5% TCEO) and increased the tensile strength (from 1.697?±?0.16% for chitosan to 19.480?±?2.86% for the film with 1.5% TCEO). Moisture content and water contact angle of the films also showed a similar trend with TCEO introduction, because of crosslinking reaction among the polymer chains and TCEO components. Scanning electron microscopy confirmed structure-properties relationships. These results suggest chitosan films incorporated with TCEO as an alternative treatment to inhibit the growth of degradative bacteria with potential application in the fish industry. The importance of testing more than one strain of the same bacteria species to evaluate the effectiveness of chitosan-essential oils coatings was also demonstrated.

Dataset Information

Thymus mastichina: Composition and Biological Properties with a Focus on Antimicrobial Activity.

Publications

<i>Thymus mastichina</i>: Composition and Biological Properties with a Focus on Antimicrobial Activity.

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