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Rutin, quercetin, and free amino acid analysis in buckwheat (Fagopyrum) seeds from different locations

C. Z. Bai, Feng, M. L., Hao, X. L., Zhong, Q. M., Tong, L. G., and Wang, Z. H., Rutin, quercetin, and free amino acid analysis in buckwheat (Fagopyrum) seeds from different locations, vol. 14, pp. 19040-19048, 2015.

In this study, five common buckwheats and nine tartary buckwheats grown at different locations were analyzed for the contents of rutin, quercetin, and amino acids by high-performance liquid chromatography and spectrophotometry. The rutin content was higher than quercetin in buckwheat seeds. Rutin content was in the range from 0.05 (0.05 g per 100 g dry seeds) to 1.35% of buckwheat seeds. Quercetin content varied from 0.01 to 0.17% and in some common buckwheats it was even difficult to detect.

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