Improving the antioxidant activity of buckwheat (Fagopyrum tataricm Gaertn) sprout with trace element water

Cheng-Kuang Hsu; Been-Huang Chiang; Yih-Shyuan Chen; Joan-Hwa Yang; Chia-Ling Liu

doi:10.1016/j.foodchem.2007.11.028

Improving the antioxidant activity of buckwheat (Fagopyrum tataricm Gaertn) sprout with trace element water

Food Chem. 2008 May 15;108(2):633-41. doi: 10.1016/j.foodchem.2007.11.028. Epub 2007 Nov 22.

Authors

Cheng-Kuang Hsu¹, Been-Huang Chiang², Yih-Shyuan Chen³, Joan-Hwa Yang³, Chia-Ling Liu⁴

Affiliations

¹ Department of Applied Life Science, Asia University, No. 500, Lioufeng Road, Wufeng Shiang, Taichung 413, Taiwan, ROC.
² Institute of Food Science and Technology, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 106, Taiwan, ROC.
³ Department of Food Science, Nutrition and Nutraceutical Biotechnology, Shih Chien University, 70 Ta-chih Street, Taipei 104, Taiwan, ROC.
⁴ Department of Food Science, Nutrition and Nutraceutical Biotechnology, Shih Chien University, 70 Ta-chih Street, Taipei 104, Taiwan, ROC. Electronic address: cll@mail.usc.edu.tw.

PMID: 26059142
DOI: 10.1016/j.foodchem.2007.11.028

Abstract

Trace element water (TEW) (100, 200, 300, 400 and 500ppm) was used to grow buckwheat (Fagopyrum tataricm Gaertn) to evaluate whether the beneficial effects of trace elements on the antioxidant activity could be accomplished with the supplement of TEW. At 300ppm, TEW significantly increased the Cu, Zn and Fe contents in buckwheat sprout, but not the Se and Mn contents. The levels of rutin, quercitrin and quercetin did not differ between buckwheat sprouts grown in TEW and de-ionized water (DIW). The ethanolic extract from buckwheat sprout grown in 300ppm TEW showed higher DPPH radical scavenging activity, ferrous ion chelating activity, superoxide anion scavenging activity and inhibitory activity toward lipid peroxidation than that grown in DIW. The extract of the TEW group also enhanced intracellular superoxide dismutase activity and resulted in lower level of reactive oxygen species in human Hep G2 cells.

Keywords: Antioxidant; Buckwheat; Fagopyrum tataricm Gaertn; Rutin; Trace element water.