𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Chemiluminescence of anthocyanins in the presence of acetaldehyde andtert-butyl hydroperoxide

✍ Scribed by Yoshiki, Yumiko ;Okubo, Kazuyoshi ;Igarashi, Kiharu


Publisher
John Wiley and Sons
Year
1995
Weight
299 KB
Volume
10
Category
Article
ISSN
0884-3996

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

Light emission (chemiluminescence; CL) was observed in the reaction of anthocyanins with tert‐butyl hydroperoxide (t‐BuOOH) in the presence of acetaldehyde. The intensity of the CL of the anthocyanins was in the order of nasunin > rubrobrassicin > delphinidin > malvin = cyanidin > malvidin, indicating that glucosylation at C‐3 and C‐5 of the anthocyanin skeleton enhances the CL of the parent compound. CL intensity was enhanced at alkaline pH. The results suggest that the antioxidant effect of anthocyanins on lipid peroxidation, which is observed in the linoleic acid‐β‐carotene‐lipoxcygenase system, is at least partly due to their strong reactivity with hydroperoxides.


πŸ“œ SIMILAR VOLUMES


Homopolymerization of Butyl Acrylate in
✍ JosΓ© Luis de la Fuente; Enrique LΓ³pez Madruga πŸ“‚ Article πŸ“… 2001 πŸ› John Wiley and Sons 🌐 English βš– 184 KB πŸ‘ 1 views

ln of the rate of polymerization vs [DDT]/[BA] for homopolymerization of butyl acrylate at 40, 50 and 60 8C, in a 3 mol/ L benzene solution and with [AIBN] = 5 6 10 -3 mol/L.