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Ecotypic Variations Affected the Biological Effectiveness of Thymus daenensis Celak Essential Oil.

ABSTRACT: Thymus (Lamiaceae) is famous for its pharmacological properties. Thymus daenensis Celak (Avishan-e-denaee in Persian) is an endemic Thymus species in Iran and is traditionally used for its digestive, carminative, antitussive, antispasmodic, and expectorant attributes in folk medicine. Ecotypic oils were extracted and analyzed with the GC-MS. Their biological properties in terms of antimicrobial, antioxidant, and antigenotoxic activities were evaluated using the minimal inhibitory concentration, minimal bactericidal concentration, and DPPH, ?-carotene, and comet assays. The GC-MS results for Thymus daenensis Celak oils revealed thymol (73.86%) and carvacrol (51.89%) as the most abundant components. Due to the results, reasonable bactericidal activity values range from 0.14 to 5.00?mg/ml, and fungicidal activity ranges from 0.17 to 0.58?mg/ml. The necessary oil free radical scavenging capacity (0.41-1.79?mg/ml), bleaching inhibitory activity (0.01-1.06?mg/ml), and genoprotective potential (1.04-7.78?mg/ml) indicated the dose-dependent activity. The results suggest that Thymus daenensis is an important antibacterial and antifungal bioresource. Additionally, the antioxidant and radical scavenging capacity suggests this species has a role as a natural preservative in oxidative diseases and in the prevention of food spoilage.

SUBMITTER: Elahian F

PROVIDER: S-EPMC7889342 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

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Ecotypic Variations Affected the Biological Effectiveness of Thymus daenensis Celak Essential Oil.

Elahian Fatemeh F Garshasbi Maryam M Mehri Asiabar Zahra Z Gholamian Dehkordi Neda N Yazdinezhad Alireza A Mirzaei Seyed Abbas SA

Evidence-based complementary and alternative medicine : eCAM 20210209

Thymus (Lamiaceae) is famous for its pharmacological properties. Thymus daenensis Celak (Avishan-e-denaee in Persian) is an endemic Thymus species in Iran and is traditionally used for its digestive, carminative, antitussive, antispasmodic, and expectorant attributes in folk medicine. Ecotypic oils were extracted and analyzed with the GC-MS. Their biological properties in terms of antimicrobial, antioxidant, and antigenotoxic activities were evaluated using the minimal inhib ...[more]

PMID: 33628312

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Project description:Although many investigations on phytochemicals in rice plant parts and root exudates have been conducted, information on the chemical profile of essential oil (EO) and potent biological activities has been limited. In this study, chemical compositions of rice leaf EO and in vitro biological activities were investigated. From 1.5 kg of fresh rice leaves, an amount of 20 mg EO was obtained by distillation and analyzed by gas chromatography-mass spectrometry (GC-MS), electrospray ionization (ESI), and atmospheric pressure chemical ionization (APCI) to reveal the presence of twelve volatile constituents, of which methyl ricinoleate (27.86%) was the principal compound, followed by palmitic acid (17.34%), and linolenic acid (11.16%), while 2-pentadecanone was the least (2.13%). Two phytoalexin momilactones A and B were first time identified in EO using ultra-performance liquid chromatography coupled with electrospray mass spectrometry (UPLC/ESI-MS) (9.80 and 4.93 ng/g fresh weight, respectively), which accounted for 7.35% and 3.70% of the EO, respectively. The assays of DPPH (IC50 = 73.1 µg/mL), ABTS (IC50 = 198.3 µg/mL), FRAP (IC50 = 700.8 µg/mL) and ?-carotene oxidation (LPI = 79%) revealed that EO possessed an excellent antioxidant activity. The xanthine oxidase assay indicated that the anti-hyperuricemia potential was in a moderate level (IC50 = 526 µg/mL) as compared with the standard allopurinol. The EO exerted potent inhibition on growth of Raphanus sativus, Lactuca sativa, and two noxious weeds Echinochloa crus-galli, and Bidens pilosa, but in contrast, the growth of rice seedlings was promoted. Among the examined plants, the growth of the E. crus-galli root was the most inhibited, proposing that constituents found in EO may have potential for the control of the problematic paddy weed E. crus-galli. It was found that the EO of rice leaves contained rich phytochemicals, which were potent in antioxidants and gout treatment, as well as weed management. Findings of this study highlighted the potential value of rice leaves, which may provide extra benefits for rice farmers.

Dataset Information

Ecotypic Variations Affected the Biological Effectiveness of Thymus daenensis Celak Essential Oil.

Publications

Ecotypic Variations Affected the Biological Effectiveness of <i>Thymus daenensis</i> Celak Essential Oil.

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