Antioxidative Effect of Taheebo Extract

Hiroshi SHIMOFURUYA*, Asami FUJII, Ikukatsu SUZUKI and Yoshihiko KUNIEDA

Department of Materials Science and Engineering, Suzuka National College of Technology; Shiroko-cho, Suzuka-shi 510-0294 Japan
Department of Clinical Nutrition, Faculty of Health Science, Suzuka University of Medical Science; Kishioka-cho, Suzuka-shi 510-0293 Japan

Antioxidative effects of Taheebo extract, obtained from the bulk of Tabebuia avellanedae Lorents and Griseb, were examined by two assay methods for radical scavenging activity on DPPH and inhibitory effect on linoleic acid peroxidation. In the case of the DPPH method, Taheebo showed the electron donating ability to DPPH and its ability corresponded to that of trolox in the present experimantal condition. On the other hand, in the autoxidation of liloleic acid, Taheebo extract showed the most inhibitory effect in teas tested (green tea and oolong tea.). These results suggested that Taheebo extract was a desirable antioxidant.

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