Food Science and Technology Research
Online ISSN : 1881-3984
Print ISSN : 1344-6606
ISSN-L : 1344-6606
Notes
Dietary Supplementation with Pearl Barley (Adlay, Coix lacryma-jobi L. var Ma-yuen Stapf) Extract Increases Oxidation Resistance in the Liver of Rats ex vivo
Katsuhiko SATOToshihiko OSAWA
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2010 Volume 16 Issue 6 Pages 613-616

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Abstract

The antioxidative fraction of roasted pearl barley (adlay, Coix lacryma-jobi L. var Ma-yuen Stapf), which is used in commercial tea beverages, was obtained by column chromatography and eluted with 70% ethanol. We investigated the effect of dietary supplementation with pearl barley extract on the formation of thiobarbituric acid-reactive substances in rat serum and ex vivo tissues. We also investigated whether the serum and tissue homogenates were susceptible to lipid peroxidation. Rats that were fed a diet containing 5 g/kg pearl barley extract (antioxidative fraction) for 14 days exhibited no significant reduction in the formation of thiobarbituric acid-reactive substances in the serum. However, compared to controls, liver homogenates from rats fed pearl barley extract showed significantly lower susceptibility to lipid peroxidation (induced by 2,2′-azobis(2-amidinopropane)hydrochloride). These results demonstrate that a diet containing pearl barley extract increases oxidation resistance in ex vivo rat livers.

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© 2010 by Japanese Society for Food Science and Technology
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