Bioscience, Biotechnology, and Biochemistry
Online ISSN : 1347-6947
Print ISSN : 0916-8451
Food & Nutrition Science Regular Paper
Absorption of Acylated Anthocyanins in Rats and Humans after Ingesting an Extract of Ipomoea batatas Purple Sweet Potato Tuber
Katsuhisa HARADAMitsuyoshi KANOTomomi TAKAYANAGIOsamu YAMAKAWAFumiyasu ISHIKAWA
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2004 Volume 68 Issue 7 Pages 1500-1507

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Abstract

We evaluated the absorbability of anthocyanins in humans and rats administered with a beverage prepared from an extract of the tuber of purple sweet potato (Ipomoea batatas Cultivar Ayamurasaki), or with an anthocyanin concentrate. Two major anthocyanin components, cyanidin 3-O-(2-O-(6-O-(E)-caffeoyl-β-D-glucopyranosyl)-β-D-glucopyranoside)-5-O-β-D-glucopyranoside) and peonidin 3-O-(2-O-(6-O-(E)-caffeoyl-β-D-glucopyranosyl)-β-D-glucopyranoside)-5-O-β-D-glucopyranoside), were detected in the plasma and urine of both rats and humans by HPLC or liquid chromatography/mass spectrometry (LC/MS). The plasma concentration of anthocyanins in humans reached a maximum 90 minutes after ingestion, and the recovery of anthocyanins in the urine was estimated as 0.01–0.03%. These results indicate that acylated anthocyanins could be selectively absorbed after ingesting food.

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© 2004 by Japan Society for Bioscience, Biotechnology, and Agrochemistry
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