Bioactivity of Phenolic Compounds in Nutritional Contexts
Summary
Phenolic compounds represent a diverse family of plant-derived secondary metabolites characterised by one or more aromatic rings bearing hydroxyl groups. They include phenolic acids, flavonoids, stilbenes and lignans, and are abundant in fruits, vegetables, cereals, tea and wine. In the nutritional context, these molecules exert a spectrum of bioactivities: they act as antioxidants by scavenging free radicals and chelating metal ions; modulate inflammatory pathways via suppression of pro-inflammatory cytokines; influence cell signalling cascades involved in apoptosis, proliferation and gene expression; and interact with gut microbiota to produce bioactive metabolites. Their health-promoting properties have been linked to reduced risk of cardiovascular disease, certain cancers, neurodegenerative disorders and metabolic syndrome. However, efficacy in vivo depends on factors such as food matrix, processing methods, absorption, metabolism by phase I/II enzymes and microbial biotransformation in the colon, all of which govern bioavailability and tissue distribution. Considerable efforts are directed towards optimising dietary sources, developing functional foods and formulating delivery systems to enhance stability and controlled release. As understanding deepens of structure–activity relationships and interindividual variability in metabolism, phenolic compounds are poised to contribute to personalised nutrition and preventive strategies against chronic diseases.
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Bioactivity of Phenolic Compounds in Nutritional Contexts publication trend
The graph below shows the total number of articles in bioactivity of phenolic compounds in nutritional contexts across all publications each year (not limited to Nature Index journals).
Technical terms
Phenolic compounds: Plant secondary metabolites with one or more hydroxylated aromatic rings, encompassing acids, flavonoids, stilbenes and lignans.
Bioavailability: Proportion of an ingested compound that reaches systemic circulation and target tissues in an active form.
Free radical scavenging: Ability of a molecule to neutralise reactive species by donating electrons or hydrogen atoms.
Anti-inflammatory activity: Modulation of signalling pathways to reduce expression or activity of pro-inflammatory mediators.
Clovamide: A hydroxycinnamic acid amide found in red clover and cocoa, noted for antioxidant and neuroprotective effects.
p-Coumaric acid: A hydroxycinnamic acid common in cereals and fruits, known for its antioxidant, growth-promoting and stress-mitigating properties.
References
- Clovamide and Its Derivatives—Bioactive Components of Theobroma cacao and Other Plants in the Context of Human Health. Foods (2024).
- p-Coumaric Acid Differential Alters the Ion-Omics Profile of Chia Shoots under Salt Stress. Plants (2024).
- Natural Sources, Pharmacokinetics, Biological Activities and Health Benefits of Hydroxycinnamic Acids and Their Metabolites. Nutrients (2020).
- Anticancer, Cardio-Protective and Anti-Inflammatory Potential of Natural-Sources-Derived Phenolic Acids. Molecules (2022).
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