Background: The genus Thymus is one of the well-known members of the Lamiaceae, comprising about 215 species. It is a polymorphic genus in this family. Therefore, possible differences in chemical composition among polymorphs may result in differences in their biological activities.
Objective: This study was designed to specify chemical composition in order to assess antioxidant activities and to characterize active constituents of essential oil of Thymus pubescens.
Methods: Essential oil was collected by hydrodistillation and was analyzed using GC-MS and GCFID. Antioxidant activities were evaluated by ABTS radical cation scavenging and β-carotene bleaching inhibition methods. Detection and identification of antioxidant components were performed by TLC-bioautography assay using ABTS•+ reagent.
Results: GC analyses indicated the presence of 39 components, accounting for 96.64% of total constituents, with thymol (38.67%), γ-terpinene (7.46%), and p-cymene (5.54%) as the main components. The IC50 values for antioxidant activities were equal to 1.15 (1.05 - 1.25) μg/mL and 0.45 (0.33 - 0.62) μg/mL for ABTS•+ scavenging and β-carotene bleaching inhibition tests, respectively. TLC-bioautography of oil resulted in the identification of thymol as the major antioxidant compound.
Conclusion: Essential oil exhibited very potent and significant antioxidant activities correlated well with increasing dose in vitro.
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http://dx.doi.org/10.2174/1386207323666201230091042 | DOI Listing |
J Agric Food Chem
January 2025
College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China.
Astaxanthin (AST), as a natural antioxidant, has broad application prospects in medicine and health products. However, its highly unsaturated structure and significant lipophilic characteristics limit its dispersibility and bioavailability, thereby restricting its application in food, medicines, and nutraceuticals. To overcome these limitations, researchers have proposed the use of nano delivery systems.
View Article and Find Full Text PDFJ Biomol Struct Dyn
March 2025
Department of Chemistry, Jamia Millia Islamia, New Delhi, India.
1,3,4-Oxadiazole-based heterocyclic analogs (3a-3m) were synthesized cyclization of Schiff bases with substituted aldehydes in the presence of bromine and acetic acid. The structural clarification of synthesized molecules was carried out with various spectroscopic techniques such as FT-IR,H and C-NMR, UV-visible spectroscopy, and mass spectrometry. antifungal activity was performed against , and and analogs 3g, 3i, and 3m showed potent MIC at 200 µg/ml and excellent ZOI measurements of 17-21 nm.
View Article and Find Full Text PDFFront Chem
January 2025
NanoStruc Research Group, Chemistry Department, Faculty of Science, Helwan University, Cairo, Egypt.
Background: Monkeypox (Mpox) is a re-emerging zoonotic disease with limited therapeutic options, necessitating the exploration of novel antiviral agents. (turmeric) is a widely used medicinal plant known for its antioxidant and anti-inflammatory properties, primarily attributed to its bioactive curcuminoids.
Aim: This study aimed to evaluate the therapeutic potential of aqueous extract (CAE) against monkeypox through phytochemical characterization, biological assays, and computational analyses.
Mediators Inflamm
January 2025
Faculty of Medical Sciences, Department of Genetics, University of Kragujevac, Kragujevac, Serbia.
L. fruits and leaf extracts have a broad range of immunomodulatory, anti-inflammatory, and antioxidant effects; however, their effects on cardiac protection have not been investigated. The study aims to test the biological activity of L.
View Article and Find Full Text PDFScientifica (Cairo)
January 2025
Department of Pharmaceutical Sciences, North South University, Dhaka, Bangladesh.
In chronic kidney disease (CKD), hyperuricemia is a common phenomenon, presumably due to reduced renal clearance of uric acid. This study investigated the effect of xanthine oxidase (XO) inhibitors allopurinol and febuxostat to prevent oxidative stress in the kidney of two-kidney, one-clip (2K1C) rats. In this investigation, 2K1C rats were used as an experimental animal model for kidney dysfunction.
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