Origanum species native to the island of Crete: in vitro antioxidant characteristics and liquid chromatography–mass spectrometry identification of major polyphenolic components

@article{Tair2014OriganumSN,
  title={Origanum species native to the island of Crete: in vitro antioxidant characteristics and liquid chromatography–mass spectrometry identification of major polyphenolic components},
  author={Asma Tair and Erika-Krisztina Weiss and Laurentiu Mihai Palade and Sofia Loupassaki and Dimitris P. Makris and Efstathia Ioannou and Vassilios Roussis and Panagiotis Kefalas},
  journal={Natural Product Research},
  year={2014},
  volume={28},
  pages={1284 - 1287}
}
Extracts from three Origanum species, including Origanum microphyllum, Origanum dictamnus and Origanum vulgare subsp. hirtum, native to the island of Crete (southern Greece), were partly fractionated through successive partition with ethyl acetate and n-butanol. All the fractions obtained were profiled with regard to their major polyphenolic constituents, using liquid chromatography-diode array-mass spectrometry. Furthermore, the antioxidant potency of each fraction was assessed by estimating… 
Characterisation of Polyphenol-Containing Extracts from Stachys mucronata and Evaluation of Their Antiradical Activity
TLDR
The most potent radical-scavenging compounds were detected in the n-butanol fraction of the extracts, suggesting that the most active antioxidants in S. mucronate are relatively polar.
Antioxidant Activity and α‐Amylase Inhibitory Effect of Polyphenolic‐Rich Extract from Origanum Glandulosum Desf
The polyphenolic-rich extract of Tunisian Origanum glandulosum Desf. was investigated for its phenolic composition, antioxidant activity and potential to contribute to the dietary management of type
Bioactive compounds and antioxidant activity of essential oils of Origanum dictamnus from Mexico
The quality and content of essential oils extracted from medicinal and culinary plants can be affected by harvesting time conditions. This study focused on the antioxidant activity and chemical
Composition, antimicrobial, antioxidant, and antiproliferative activity of Origanum dictamnus (dittany) essential oil
TLDR
Investigation of the antimicrobial, antioxidant, and antiproliferative properties of O. dictamnus essential oil revealed that it is a noteworthy growth inhibitor against the microbes studied and may represent an effective and inexpensive source of potent natural antimicrobial agents with health-promoting properties, which may be incorporated in food systems.
Agronomic, metabolomic and lipidomic characterisation of Sicilian Origanum vulgare (L.) ecotypes
TLDR
This work characterised five wild Sicilian Origanum ecotypes from an agronomic, metabolomic and lipidomic perspective, identifying 115 polar plant membrane glycerolipid species and the role of these metabolites in plant physiology from a qualitative and pharmacological point of view was discussed.
Optimised extraction of antioxidant polyphenols from Satureja thymbra using newly designed glycerol-based natural low-transition temperature mixtures (LTTMs)
Abstract The medicinal plant Satureja thymbra (pink savory) has been chosen to study the capacity of three newly designed glycerol-based, natural low-transition temperature mixtures (LTTMs) to
Comparative Evaluation of Argania spinosa and Olea europaea Leaf Phenolic Compounds and their Antioxidant Activity
TLDR
In vitro antioxidant studies strongly confirmed the antioxidant potency of argan and olive leaves and their richness in secondary metabolites that are effective in free radicals scavenging and metal chelating capacities, indicating their antioxidant power.
Extraction Processes Affect the Composition and Bioavailability of Flavones from Lamiaceae Plants: A Comprehensive Review
TLDR
This review aims to comprehensively gather recent information regarding extraction techniques and their important relationship with the bioavailability of flavones from Lamiaceae plants including Salvia, Ocimum, Thymus, and Origanum.
Introducing Dittany of Crete (Origanum dictamnus L.) to gastronomy: A new culinary concept for a traditionally used medicinal plant
Abstract A new culinary concept has been developed to praise ancient and modern uses of exclusive Mediterranean ingredients, focusing the world׳s attention in a region: Crete, Greece. We reviewed the
Hypoglycemic effect of rosmarinic acid-rich infusion (RosCE) from Origanum vulgare in alloxan-induced diabetic rats.
TLDR
Evidence is presented that supports the folkloric use of O. vulgare for the treatment of hyperglycemia, confirming the use of its infusion as an antidiabetic herbal medicine.
...
1
2
...

References

SHOWING 1-10 OF 15 REFERENCES
Biomolecular Characterization of Wild Sicilian Oregano: Phytochemical Screening of Essential Oils and Extracts, and Evaluation of Their Antioxidant Activities
TLDR
An extensive survey of wild Sicilian oregano was made, followed by taxonomic characterization from an agronomic perspective, and cluster analysis was used to divide the samples into homogeneous groups, to identify the best biotypes.
Antioxidant capacity and total phenolic contents of oregano (Origanum vulgare), lavender (Lavandula angustifolia) and lemon balm (Melissa officinalis) from Romania
TLDR
It was found that Origanum vulgare and Melissa officinalis extracts present the most effective antioxidant capacity in scavenging DPPH radicals, while Lavandula angustifolia is less active.
Exudate flavones and flavanones in Origanum species and their interspecific variation
TLDR
Twenty-five flavones and flavanones are described in this study, of which 13 are new to the genus and 5,4′-dihydroxy-6,7,3′-trimethoxyflavanone is reported for the first time.
Dittany of Crete: a botanical and ethnopharmacological review.
TLDR
The aim of the present review is to present comprehensive information of the plant's botanical taxonomy and morphology, as well as of the chemical constituents, biological and pharmacological research on O. dictamnus, which will be presented and critically evaluated.
Two new flavonoids from Origanum vulgare
TLDR
In addition to the major constituents apigenin, luteolin, salvagenin, cirsimartin, diosmetin, desmethoxycentauridin, 5-hydroxy-6,7,3′,4′-tetramethoxy-abigenin , two new flavonoids were isolated from the methanolic extract of Origanum vulgare L.
Phenolic profiles and antioxidant and anticarcinogenic activities of Greek herbal infusions; balancing delight and chemoprevention?
TLDR
The regulation reported in p65 subunit in HT29 treated with St John's Wort and in PC3 treated with thyme might point to the NF-κB as the molecular target underlying the effect of these infusions.
Flavonoid antioxidants: chemistry, metabolism and structure-activity relationships.
TLDR
The diversity and multiple mechanisms of flavonoid action, together with the numerous methods of initiation, detection and measurement of oxidative processes in vitro and in vivo offer plausible explanations for existing discrepancies in structure-activity relationships.
In Vitro Activity of Vitamins, Flavonoids, and Natural Phenolic Antioxidants Against the Oxidative Deterioration of Oil-Based Systems
TLDR
Focus is given on the mechanism of actions and the inhibitory effect of certain vitamins against the oxidative degradation of oil-based systems and the use of natural phenolics as antioxidants in numerous lipid food applications is discussed.
Natural antioxidants from herbs and spices
There is a growing interest in natural antioxidants found in plants because of the world-wide trend toward the use of natural additives in food and cosmetics. Herbs and spices are one of the most
The molecular basis of working mechanism of natural polyphenolic antioxidants
In this review, we present a summary of the research work performed so far using high accuracy quantum chemical methods on polyphenolic antioxidant compounds. We have reviewed the different groups of
...
1
2
...