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Stability of meoru (Vitis coignetiea) anthocyanins under photochemically produced singlet oxygen by riboflavin

Paper ID Volume ID Publish Year Pages File Format Full-Text
33839 44992 2010 5 PDF Available
Title
Stability of meoru (Vitis coignetiea) anthocyanins under photochemically produced singlet oxygen by riboflavin
Abstract

This study investigated the stability of meoru (wild vine grape) anthocyanins in the aqueous solution under singlet oxygen. Freeze–dried meoru (1 kg) contained 179.98 mg anthocyanins including delphinidin-3-glucoside, malvidin-3,5-diglucoside, cyanidin-3,5-diglucoside, malvidin-3-glucoside, and cyanidin-3-glucoside. Malvidin-3,5-diglucoside and cyanidin-3-glucoside were the meoru anthocyanins at the highest and the lowest concentration, respectively. Little decrease in total anthocyanins in the aqueous solution was observed in the dark with or without riboflavin, or with light without riboflavin. Singlet oxygen degraded the meoru anthocyanins in the aqueous solution, which suggested chemical quenching of singlet oxygen by the anthocyanins. Degradation of the meoru anthocyanins was structure-dependent; diglucoside anthocyanins were more stable than monoglucoside. And malvidin glucoside was more stable than delphinidin or cyanidin glucoside, which suggested the number of hydroxy groups in the structure was partly related with the anthocyanin stability under singlet oxygen. This is the first report on anthocyanins stability affected by its structure under singlet oxygen.

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Stability of meoru (Vitis coignetiea) anthocyanins under photochemically produced singlet oxygen by riboflavin
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Publisher
Database: Elsevier - ScienceDirect
Journal: New Biotechnology - Volume 27, Issue 4, 30 September 2010, Pages 435–439
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us