ISSN:
1750-3841
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
The bleaching of anthocyanins by sulfur dioxide is a reversible process that does not involve hydrolysis of the 3-glycosidic group, reduction of the pigment, or addition of bisulfite to a ketonie, chalcone derivative. In sulfite decoloration the reactive species is the anthocyanin carbonium ion (R+). The experimental evidence indicates that this simply reacts with a bisulfite ion to form a colorless chromen-2 (or 4)-sulfonic acid (R-SO3H), similar in structure and properties to an anthocyanin carbinol base (R-OH).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2621.1964.tb01685.x
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