Simultaneous determination of glycyrrhizin and liquiritin in licorice roots and Kampo medicines by combination enzyme-linked immunosorbent assay using anti-glycyrrhizin and anti-liquiritin monoclonal antibodies
Shunsuke Fujii, O. Morinaga, T. Uto, Shuichi Nomura, Y. Shoyama
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引用次数: 9
Abstract
ABSTRACT Immunoassay systems using monoclonal antibodies (mAbs) are one of the most useful techniques in the analytical, biochemical, and clinical fields. In this study, a combination enzyme-linked immunosorbent assay (ELISA) using both anti-glycyrrhizin and anti-liquiritin mAbs (anti-GL/Liq mixture mAbs) was developed for quality control of licorice and its products. The combination ELISA demonstrated high sensitivity, reproducibility, and specificity for the total content of GL and Liq by a single assay. The developed ELISA was effective and useful as the first screening method in the selection of high-quality licorice from the Glycyrrhiza species and in confirming the quality of licorice-containing Kampo medicines.
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