Bioscience, Biotechnology, and Biochemistry
Online ISSN : 1347-6947
Print ISSN : 0916-8451
Food & Nutrition Science Notes
Artificial Food Colorants Inhibit Superoxide Production in Differentiated HL-60 Cells
Hang QIMachiko KAWAGISHIMotoko YOSHIMOTOHiroshi TAKANOBeiwei ZHUYasuaki SHIMOISHIMikiro TADAYoshiyuki MURATAYoshimasa NAKAMURA
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2010 年 74 巻 8 号 p. 1725-1728

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We tested synthetic food colorants for their antioxidative potential by the in vitro superoxide generation assay in differentiated HL-60 cells in response to phorbol ester. Among the 12 colorants tested, such fluorescein-type red colorants as rose bengal showed potent inhibitory activity without any cytotoxicity under dark conditions. The intracellular accumulation and superoxide anion scavenging effect of rose bengal were at least partly involved in the inhibitory activity.
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© 2010 by Japan Society for Bioscience, Biotechnology, and Agrochemistry
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