Scavenging of acetylperoxyl radicals and quenching of triplet diacetyl by β-carotene: Mechanisms and kinetics

Journal of Photochemistry and Photobiology B: Biology

Volumn 61, Issue 1-2, 2001, Pages 62-67

  Mortensen, Alan ^a  

^a UNIVERSITY OF COPENHAGEN   (Denmark)

Author keywords

Carotene; Acetylperoxyl radical; Diacetyl; Laser flash photolysis

Indexed keywords

2,3 BUTANEDIONE; BENZENE; BETA CAROTENE; OXYGEN; PEROXY RADICAL; SCAVENGER;

AERATION; ARTICLE; CONTROLLED STUDY; DISSOCIATION; KINETICS; LASER; OXIDATION; PHOTOLYSIS; PRIORITY JOURNAL; TEMPERATURE;

BENZENE; BETA CAROTENE; DIACETYL; FREE RADICAL SCAVENGERS; KINETICS; PEROXIDES; PHOTOLYSIS;

EID: 0035881942     PISSN: 10111344     EISSN: None     Source Type: Journal    
DOI: 10.1016/S1011-1344(01)00146-4     Document Type: Article

References (31)

1. Structures and functions of carotenoids in photosynthetic systems
2. Antioxidant potentials of vitamin A and carotenoids and their relevance to heart disease
3. Overview of lycopene, carotenoids, and disease prevention
4. Carotenoid radical reactions
5. Triplet-triplet extinction coefficients, rate constants of triplet decay and rate constants of anthracene triplet sensitization by laser flash photolysis of astaxanthin, β-carotene, canthaxanthin and zeaxanthin in at 298 K
6. The triplet state of β-carotene and of analog polyenes of different length
7. Sensitized triplet formation of chlorophyll-a and β-carotene
8. The triplet state of lycopene
9. β-carotene and lipid oxidation
10. 2 radical
11. Reactivity of β-carotene towards peroxyl radicals studied by laser flash and steady-state photolysis
12. Changes in flavour release from rehydrated diced bell peppers (Capsicum annuum) by artificial saliva components in three mouth model systems
13. Interaction of singlet oxygen with peroxy and acylperoxy radicals
14. Oxygen quenching of excited aliphatic ketones and diketones
15. Mechanism of photoepoxidation of olefins with α-diketones and oxygen
16. Reactivities of acylperoxy radicals in the photoreaction of α-diketones and oxygen
17. Mechanistic study on the photo-oxidation of α-diketones. Interaction of triplet α-diketones with oxygen
18. 40 carotenoids
19. Absolute rate constants for hydrogen abstraction from aldehydes and conformational studies of the corresponding aromatic acyl radicals
20. Chemistry of acyl radicals
21. Studies of acetylperoxy radicals produced by photolysis of biacetyl in aerated benzene solutions: Ion-pair formation with tetramethyl-p-phenylenediamine
22. Flash photolysis of azo dyes in aqueous solutions of biacetyl
23. Kinetic and spectroscopic studies on acyl radicals in solution by time-resolved infrared spectroscopy
24. Rates of decarboxylation of acyloxy radicals formed in the photocleavage of substituted 1-naphthylmethyl alkanoates
25. Kinetics of the reactions between alkyl radicals and molecular oxygen in aqueous solution
26. Scavenging of nitrogen dioxide, thiyl, and sulfonyl free radicals by the nutritional antioxidant β-carotene
27. Comparative mechanisms and rates of free radical scavenging by carotenoid antioxidants
28. Mechanism and kinetics of scavenging of the phenylthiyl radical by carotenoids. A laser flash photolysis study
29. One- and two-electron reduction potentials of peroxyl radicals and related species
30. Thermochemical properties of peroxides and peroxyl radicals