Kohki tea (黄杞茶) or Huang Qi Tea is a Chinese/Japanese herbal drink very high in antioxidant activity. Kohki tea has been sold over the counter for centuries and is standardized to contain astilbin and taxifolin.
Astilbin can be isolated from Kohki tea processed from Engelhardtia chrysolepis (huang-qi).Effect of Astilbin in Tea Processed from Leaves of Engelhardtia Chrysolepis on the Serum and Liver Lipid Concentrations and on the Erythrocyte and Liver Antioxidative Enzyme Activities of Rats
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ja:黄杞茶 zh:黄杞茶