Abstract
The paradox of aerobic life is that higher eukaryotic organisms cannot exist without oxygen, yet oxygen is inherently dangerous to their existence. Autoxidation of organic substances frequently occurs via free radical mechanism which generates different active radicals and peroxides OH•, O2 •-, LO2 •, HOOH, LOOH, so called reactive oxygen species (ROS), which appear to be responsible for oxygen toxicity. To survive in such an unfriendly oxygen environment, living organisms generate - or obtain from food - a variety of water- and lipid-soluble antioxidant compounds. Biologically active compounds with antioxidant potential, i.e. bio-antioxidants (natural and their synthetic analogues) have a wide range of applications. They are important drugs, antibiotics, agrochemical substitutes, and food preservatives. Many of the drugs today are synthetic modifications of naturally obtained substances. This review presents information about the chemical base of antioxidant activities and beneficial effects on human health of known and new bio-antioxidants. There is abundant literature on the phenolic antioxidants and tocopherols in particular. In this review the following bio-antioxidants are considered: A) Carotenoids, B) Cathecholamines, C) Phospholipids, D) Chalcones, E) Coumarins, F) Phenolic acids, G) Flavonoids, H) Lignans, and I) Tannins.
Keywords: Antioxidant activity, beneficial effect, bio-antioxidant, chemical structure, human health.
Current Medicinal Chemistry
Title:Bio-Antioxidants – A Chemical Base of Their Antioxidant Activity and Beneficial Effect on Human Health
Volume: 20 Issue: 37
Author(s): V. D. Kancheva and O. T. Kasaikina
Affiliation:
Keywords: Antioxidant activity, beneficial effect, bio-antioxidant, chemical structure, human health.
Abstract: The paradox of aerobic life is that higher eukaryotic organisms cannot exist without oxygen, yet oxygen is inherently dangerous to their existence. Autoxidation of organic substances frequently occurs via free radical mechanism which generates different active radicals and peroxides OH•, O2 •-, LO2 •, HOOH, LOOH, so called reactive oxygen species (ROS), which appear to be responsible for oxygen toxicity. To survive in such an unfriendly oxygen environment, living organisms generate - or obtain from food - a variety of water- and lipid-soluble antioxidant compounds. Biologically active compounds with antioxidant potential, i.e. bio-antioxidants (natural and their synthetic analogues) have a wide range of applications. They are important drugs, antibiotics, agrochemical substitutes, and food preservatives. Many of the drugs today are synthetic modifications of naturally obtained substances. This review presents information about the chemical base of antioxidant activities and beneficial effects on human health of known and new bio-antioxidants. There is abundant literature on the phenolic antioxidants and tocopherols in particular. In this review the following bio-antioxidants are considered: A) Carotenoids, B) Cathecholamines, C) Phospholipids, D) Chalcones, E) Coumarins, F) Phenolic acids, G) Flavonoids, H) Lignans, and I) Tannins.
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Cite this article as:
Kancheva D. V. and Kasaikina T. O., Bio-Antioxidants – A Chemical Base of Their Antioxidant Activity and Beneficial Effect on Human Health, Current Medicinal Chemistry 2013; 20 (37) . https://dx.doi.org/10.2174/09298673113209990161
DOI https://dx.doi.org/10.2174/09298673113209990161 |
Print ISSN 0929-8673 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-533X |
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