Related Experiment Video
Updated: Mar 3, 2026
07:05
Author Spotlight: Eco-Friendly Extraction of Bioactive Compounds Using Polyol-Based Microwave-Assisted Techniques
Published on: August 23, 2024
3.0K
Hydroxytyrosol and Cytoprotection: A Projection for Clinical Interventions.
Francisca Echeverría1, Macarena Ortiz2, Rodrigo Valenzuela3
1Nutrition Department, Faculty of Medicine, University of Chile, Independencia 1027, Independencia, Santiago 8380453, Chile. francisca.echeverria@med.uchile.cl.
International Journal of Molecular Sciences
|April 29, 2017
Summary
Hydroxytyrosol (HT), a potent antioxidant from extra virgin olive oil, offers significant health benefits. This review explores HT
Area of Science:
- Nutritional Science
- Biochemistry
- Pharmacology
Background:
- Hydroxytyrosol (HT) is a key polyphenol in extra virgin olive oil (EVOO) and red wine.
- EVOO phenolic content varies, with HT and derivatives comprising roughly half.
- HT possesses potent antioxidant properties, including hydrogen donation and radical stabilization.
Purpose of the Study:
- To review the primary health properties of hydroxytyrosol (HT).
- To emphasize HT's role in preventing and treating non-communicable diseases.
- To consolidate research on HT's biological effects beyond its antioxidant capacity.
Main Methods:
- Literature review of studies on hydroxytyrosol (HT).
- Analysis of human, cellular, and animal model data.
- Focus on HT's effects related to extra virgin olive oil consumption.
Main Results:
- Hydroxytyrosol (HT) is safely consumed, even at high doses, showing no in vitro genotoxicity or mutagenicity.
- HT is absorbed in the small intestine after hydrolysis of EVOO phenolic compounds.
- Numerous beneficial health properties of HT have been documented.
Conclusions:
- Hydroxytyrosol (HT) exhibits significant potential for human health.
- HT's properties may contribute to the prevention and treatment of non-communicable diseases.
- Further research into HT's diverse biological activities is warranted.
Related Concept Videos
01:17Oxidation of Phenols to Quinones
5.0K
In the presence of oxidizing agents, phenols are oxidized to quinones. Quinones can be easily reduced back to phenols using mild reducing agents. The electron-donating hydroxyl group enhances the reactivity of the aromatic ring, enabling oxidation of the ring even in the absence of an α hydrogen.
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
5.0K
01:01Hypersensitivity Reactions: Cytolytic Reactions
74
Type II hypersensitivity involves IgG and IgM antibodies targeting cell surface antigens, leading to cell destruction. This can occur through complement activation, antibody-dependent cell-mediated cytotoxicity (ADCC), or acting as opsonins for phagocytosis. When excessive, these reactions cause significant tissue damage.Drug-induced hemolytic anemia is a common example, where drugs like penicillin or cephalosporins bind to red blood cells, forming drug-protein complexes. These complexes...
74
01:20Radical Autoxidation
3.3K
The oxidation of an organic compound in the presence of air or oxygen is called autoxidation. For example, cumene reacts with oxygen to form hydroperoxide. Autoxidation involves initiation, propagation, and termination steps. Many organic compounds are susceptible to autoxidation—especially ethers in the presence of oxygen, which form hydroperoxides. Even though this reaction is slow, old ether bottles contain small amounts of peroxide, which leads to laboratory explosions during ether...
3.3K
01:24Acetals and Thioacetals as Protecting Groups for Aldehydes and Ketones
6.0K
Acetals are formed by reacting two equivalents of alcohol with carbonyl compounds like aldehydes or ketones. Acetals are unaffected by bases, nucleophiles, oxidizing agents, and reducing agents. They serve as protecting groups for aldehydes and ketones. Acetals can be easily formed and also easily removed via mild acid hydrolysis.
In the presence of multiple functional groups, when selective reduction of one group over the other is desired, groups like aldehydes and ketones that form acetals...
In the presence of multiple functional groups, when selective reduction of one group over the other is desired, groups like aldehydes and ketones that form acetals...
6.0K
02:44Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide
13.2K
Alkenes are converted to 1,2-diols or glycols through a process called dihydroxylation. It involves the addition of two hydroxyl groups across the double bond with two different stereochemical approaches, namely anti and syn. Dihydroxylation using osmium tetroxide progresses with syn stereochemistry.
13.2K
02:31Protection of Alcohols
8.2K
This lesson delves into the concept of protection and deprotection of a functional group fundamental to synthetic organic chemistry. These phenomena are explained in the context of aliphatic and aromatic alcohols.
Protection
It defines a protecting group as the masking agent to make the more reactive species inert to a given set of conditions. This concept is depicted via the illustration of liquid flow through different outlets in an assembly of pipes. The analogy helps to understand the role...
Protection
It defines a protecting group as the masking agent to make the more reactive species inert to a given set of conditions. This concept is depicted via the illustration of liquid flow through different outlets in an assembly of pipes. The analogy helps to understand the role...
8.2K