Chemiluminescence of anthocyanins in the presence of acetaldehyde andtert-butyl hydroperoxide
β 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
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β¦ Synopsis
Abstract
Light emission (chemiluminescence; CL) was observed in the reaction of anthocyanins with tertβbutyl hydroperoxide (tβBuOOH) 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 Cβ3 and Cβ5 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 acidβΞ²βcaroteneβlipoxcygenase system, is at least partly due to their strong reactivity with hydroperoxides.
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