Oregano (Origanum spp.) Oils

Ortega-Ramírez, Luis Alberto; Rodriguez-Garcia, Isela; Silva‐Espinoza, Brenda A.; Ayala-Zavala, J. Fernando

doi:10.1016/b978-0-12-416641-7.00071-7

Cited by 8 publications

(2 citation statements)

References 47 publications

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“…Oregano, or "za'atar", is valued for its antibacterial, antifungal, and antioxidant properties [6]. These plants are deeply rooted in Moroccan culture, not only as culinary herbs but also as remedies for ailments ranging from respiratory disorders to digestive problems [7].…”

Section: Introductionmentioning

confidence: 99%

Phytochemical Analysis, Antioxidant, Analgesic, Anti-Inflammatory, Hemagglutinin and Hemolytic Activities of Chemically Characterized Extracts from Origanum grosii (L.) and Thymus pallidus (L.)

Zejli,

Metouekel,

Zouirech

et al. 2024

Plants

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Origanum grosii (L.) and Thymus pallidus (L.) are medicinal plants recognized for their uses in traditional medicine. In this context, the aim of this article is to highlight the results of a phytochemical analysis (HPLC), with particular emphasis on the antioxidant (DPPH, TAC, and FRAP), analgesic, anti-inflammatory, haemagglutinin-test-related, and hemolytic activities of the total extracts of these plants. Phytochemical analysis via HPLC revealed that licoflavone C (30%) is the main compound in Origanum grosii, while hesperidin (43%) is found in T. pallidus. Evaluation of the antioxidant capacity of Origanum grosii and Thymus pallidus using the DPPH, TAC, and FRAP methods revealed an IC50 of the order of 0.085 mg/mL and 0.146 mg/mL, an EC50 of the order of 0.167 mg/mL and 0.185 mg/mL, and a total antioxidant capacity of between 750 mg EQ/g and 900 mg EQ/g, respectively. Analgesic evaluations revealed writhes inhibition of the order of 97.83% for O. grosii and 90% for T. pallidus. In addition, both plant extracts showed limited hemolytic activity, not exceeding 30% at a concentration of 100 mg/mL. Evaluation of the anti-inflammatory potential showed edema inhibition of the order of 94% (800 mg/kg) for O. grosii and 86% (800 mg/kg) for T. pallidus. These results highlight the potential applications of these extracts in pharmacological research.

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Section: Introductionmentioning

confidence: 99%

Phytochemical Analysis, Antioxidant, Analgesic, Anti-Inflammatory, Hemagglutinin and Hemolytic Activities of Chemically Characterized Extracts from Origanum grosii (L.) and Thymus pallidus (L.)

Zejli,

Metouekel,

Zouirech

et al. 2024

Plants

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“…[1][2][3][4] Most species can be encountered in mainland and mountainous regions, a fact even testified by the generic name which translates to "ornament of the mountains" (from the Greek words "oros", mountain and "ganos", ornament). 1 Members of the genus have found several applications in the food and beverage industries mainly due to their distinct aroma, their preservative and antioxidant properties, 5,6 while their extracts have drawn great interest for their pharmacological activities and most notably for the antimicrobial properties of the essential oils. 7 Origanum plants have been found to possess a wide range of volatile constituents, with their essential oils primarily characterised by the presence of carvacrol and thymol, two phenolic monoterpenoids with well documented antimicrobial, antioxidant, spasmolytic, vasorelaxant and antiproliferative activities.…”

Section: Introductionmentioning

confidence: 99%

A GC–MS and LC–HRMS perspective on the chemotaxonomic investigation of the natural hybrid Origanum × lirium and its parents, O. vulgare subsp. hirtum and O. scabrum

Petrakis

Mikropoulou

Mitakou

et al. 2023

Phytochemical Analysis

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Introduction:The genus Origanum L. (Lamiaceae) is widespread in the Mediterranean region. However, approximately 75% of the species are only encountered in the eastern part. Out of these, a total of nine species (11 taxa) and three natural hybrids occur in Greece. Nevertheless, so far, there is no consensus regarding their precise botanical classification in the literature. In fact, the taxon Origanum Â lirium has been proposed both as a separate species as well as natural hybrid between Origanum vulgare subsp. hirtum and Origanum scabrum.Objectives: In this scope, the aim of the current study is to shed light on the matter through the investigation of the chemical composition of both the essential oils and the polar extracts of the mentioned taxa, collected from different geographical regions of Greece.Results: As it was demonstrated by both gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-high-resolution mass spectrometry (LC-HRMS) data, and highlighted by our comparative analysis, it can be stipulated that Origanum Â lirium shares its chemotype to a large extent with its parent species concerning both volatile and polar constituents. Additionally, geographical origin conditions stood out as a key factor influencing their chemical composition. Conclusion:Altogether, the present work provides useful information on the chemical composition of the taxa under investigation, while our findings support the opinion that Origanum Â lirium should be considered not as a separate species, but rather as a hybrid on the way to becoming a species.

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The role of plant‐derived natural antioxidants in reduction of oxidative stress

et al. 2022

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Free radicals are a group of damaging molecules produced during the normal metabolism of cells in the human body. Exposure to ultraviolet radiation, cigarette smoking, and other environmental pollutants enhances free radicals in the human body. The destructive effects of free radicals may also cause harm to membranes, enzymes, and DNA, leading to several human diseases such as cancer, atherosclerosis, malaria, coronavirus disease (COVID‐19), rheumatoid arthritis, and neurodegenerative illnesses. This process occurs when there is an imbalance between free radicals and antioxidant defenses. Since antioxidants scavenge free radicals and repair damaged cells, increasing the consumption of fruits and vegetables containing high antioxidant values is recommended to slow down oxidative stress in the body. Additionally, natural products demonstrated a wide range of biological impacts such as anti‐inflammatory, anti‐aging, anti‐atherosclerosis, and anti‐cancer properties. Hence, in this review article, our goal is to explore the role of natural therapeutic antioxidant effects to reduce oxidative stress in the diseases.

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Oregano (Origanum spp.) Oils

Cited by 8 publications

References 47 publications

Phytochemical Analysis, Antioxidant, Analgesic, Anti-Inflammatory, Hemagglutinin and Hemolytic Activities of Chemically Characterized Extracts from Origanum grosii (L.) and Thymus pallidus (L.)

Phytochemical Analysis, Antioxidant, Analgesic, Anti-Inflammatory, Hemagglutinin and Hemolytic Activities of Chemically Characterized Extracts from Origanum grosii (L.) and Thymus pallidus (L.)

A GC–MS and LC–HRMS perspective on the chemotaxonomic investigation of the natural hybrid Origanum × lirium and its parents, O. vulgare subsp. hirtum and O. scabrum

The role of plant‐derived natural antioxidants in reduction of oxidative stress

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