Health Benefits of Quercetin

  title={Health Benefits of Quercetin},
  author={R. Kumar and Selvakumar Vijayalakshmi and Shanmugam Nadanasabapathi},
  journal={life science journal},
Flavonoids are natural antioxidants derived from plant pigments and commonly found in agricultural produce such as fruits, vegetables, and also in beverages like tea and wine. Quercetin is the most important flavonoid which belongs to the class of flavonol. Quercetin is a vital biologically active compound, which is present in many products, such as onion ( Allium cepa ), black tea ( Camellia sinensis ), Broccoli ( Brassica oleracea var . italic ), and also in red wine and green tea, It is… 

Quercetin remain promising for Chronic Prostatitis treatment

Quercetin is a plant flavonol from the flavonoid group of polyphenols. These micronutrients are components of certain plant-based foods and exhibit antioxidant properties. More specifically,

Influência de quercetina e resveratrol sobre propriedades in vitro relacionadas à funcionalidade de cepas de Lactobacillus potencialmente probióticas

The combined use of QUE or RES with probiotic lactobacilli could improve functional properties exerted by these bacteria on the host; however, the concentration of these compounds should be careful considered to reach these desirable effects.

Flavonoids in Our Foods: A Short Review

Flavonoids are potent antioxidant molecules, which scavenge free radicals in vitro, which are important for human diet and have beneficial effects on health like chelating trace elements involved in free radical production, scavenging ROS and upregulating or protecting antioxidant defenses.

Flavonoids: isolation, characterization, and health benefits

The pharmacological activities of flavonoids from the various sources reviewed in this study show that the secondary metabolites could provide a scaffold for the development of potent anti-cancer drugs in the future.

Therapeutic Potential of Quercetin and its Derivatives in Epilepsy: Evidence from Preclinical Studies.

The evidence of most recent knowledge of anticonvulsant properties of quercetin and its derivatives on preclinical studies is provided and neuroprotective effect of these bioactive compound is discussed and underlying mechanisms responsible for anticonventrine properties are presented in brief.

Potential mechanisms of quercetin in cancer prevention: focus on cellular and molecular targets

This comprehensive review of the anti-cancer mechanism of quercetin summarized the regulation of several signalling pathways within the cancer cell through the activity of oncogenic and tumor suppressor ncRNAs.

Could fruits be a reliable source of food colorants? Pros and cons of these natural additives

In this review, the major pigments found in fruits and their extraction and stabilization techniques for uses as food additives will be looked over.

Enhanced Yield of Bioactivities from Onion (Allium cepa L.) Skin and Their Antioxidant and Anti-α-Amylase Activities

The onion skin extracts showed a dose-dependent relationship between dry extract concentration and α-amylase inhibition, which confirms that this onion skin extract can be considered as an anti-diabetes agent.

The roles of quercetin in diabetes mellitus and related metabolic disorders; special focus on the modulation of gut microbiota: A comprehensive review.

Findings showed that quercetin can be an effective component for improving glycemic status and other metabolic disorders related to diabetes mellitus based on In vitro and animal studies, however, environmental factors, food processing and using nanoformulations can affect its efficacy in human studies.

Sulfur bentonite-organic-based fertilizers as tool for improving bio-compounds with antioxidant activities in red onion.

The use of Sulphur-bentonite bound with agricultural wastes represents a novel strategy to increase bio-compounds with beneficial effects on human health, to enhance the medical and economic values of S-loving crops with important consequences on bio and green economy.



The effects of plant flavonoids on mammalian cells: implications for inflammation, heart disease, and cancer.

Western medicine has not yet used flavonoids therapeutically, even though their safety record is exceptional, and suggestions are made where such possibilities may be worth pursuing.

Flavonoids as antioxidants.

  • P. Pietta
  • Chemistry, Medicine
    Journal of natural products
  • 2000
This review presents the current knowledge on structural aspects and in vitro antioxidant capacity of most common flavonoids as well as in vivo antioxidant activity and effects on endogenous antioxidants.

Bioavailability of quercetin from flesh scales and dry skin of onion in rats.

Quercetin is a natural compound widely distributed in the plant food. It is still not certain which forms of quercetin, aglycone or glycosides, are better bioavailable. In this study, for the first

Plasma metabolites of quercetin and their antioxidant properties.

This study shows that ubiquitous quercetin is conjugated in vivo, yielding metabolites that exhibit antioxidant properties, thus the health benefits of flavonoids in foods can be due to the antioxidant properties of their metabolites.

Onions: a source of unique dietary flavonoids.

The structural diversity of dihydroflavonols characterized from onions is restricted compared with the wide structural assortment of flavonols and anthocyanins identified, and they may occur at high concentrations in some cultivars.

Pharmacokinetics and Bioavailability of Quercetin Glycosides in Humans

The disposition of quercetin in humans primarily depends on the sugar moiety, and to a minor extent, the plant matrix influences both the rate and extent of absorption in the case of buckwheat tea administration compared with the isolated compound.

Quercetin and its derivatives: chemical structure and bioactivity - a review

Quercetin is one of the major dietary flavonoids belonging to a group of flavonols. It occurs mainly as glycosides, but other derivatives of quercetin have been identified as well. Attached