antioxidants
Also known as: antioxidants, antioxidant, anti-oxidant
synthesized from dimensionsAntioxidants are bioactive compounds and phytochemicals primarily derived from natural sources, including medicinal plants, wild edible vegetables, fruits, and herbs. At their core, these compounds are defined by their ability to neutralize free radicals, a process that mitigates oxidative stress and significantly impacts human health free radicals and antioxidants impact. Recognized for their diverse biological activities, antioxidants are frequently studied alongside antimicrobial, anti-inflammatory, and anticancer properties bioactive compounds in medicinal plants exhibit antioxidant effects.
The chemical diversity of antioxidants is extensive, encompassing various classes of compounds such as flavonoids, phenolic acids, and essential oils. Notable examples include rutin, gallic acid, and protocatechuic acid rutin and phenolic acids, as well as well-known bioactive agents like curcumin curcumin with antioxidant properties. Research consistently highlights that phenolic compounds are primary contributors to the antioxidant capacity of plant materials phenolics as antioxidants. The concentration of these compounds in edible plants is significant, often ranging from 1,604.3 to 4,874.6 μmol·100 g⁻¹ high levels in edibles, and is typically quantified using standardized analytical techniques such as the DPPH and Folin-Ciocalteu methods DPPH and Folin-Ciocalteu methods.
The sources of these compounds are vast and geographically varied. Studies have identified valuable antioxidant profiles in wild Mediterranean plants Vanzani wild plants antioxidants, non-cultivated vegetables Morales vegetables analysis, and specific medicinal species like *Vernonia amygdalina* Erasto Vernonia antioxidants. Other sources include wild fruits like blackthorn and hawthorn blackthorn and hawthorn as antioxidant sources, as well as extracts from cherry plum cherry plum and plum methanol extracts and essential oils from plants like *Emilia coccinea* essential oils from Emilia coccinea showing antioxidant activity.
Beyond their biological roles in human health, antioxidants have significant industrial and material science applications. They are increasingly utilized in the development of sustainable, eco-friendly biopolymers and packaging materials eco-friendly antioxidants review. Lignins, for instance, are widely recognized as green antioxidants suitable for use in both sustainable packaging lignin as green antioxidant and cosmetic applications like sunscreens lignin as green antioxidant for sunscreens. Furthermore, innovative techniques such as phyto-synthesized silver nanoparticles (AgNPs) are being employed to render fabrics antioxidant, demonstrating the versatility of these compounds in modern technology phyto-synthesized AgNPs rendering fabrics antioxidant.