Hydrolysis of Glycosidic Flavonoids during the Preparation of Danggui Buxue Tang: An Outcome of Moderate Boiling of Chinese Herbal Mixture

Figure 2

The amounts of AR-derived chemicals in DBT under different boiling process. Two DBT decoctions were prepared, one was boiled using moderate heating (DBT-M), the other one was boiled with high heating directly (DBT-H). Detailed procedure was described in Section 2. The amounts of calycosin-7-O-β-D-glucoside, calycosin, ononin, formononetin and astragaloside IV were determined. The values are expressed in μg/g of the dry material and are in Mean ± SD, where 𝑛=4, each with triplicate samples. The amount of the same compound was compared in these two decoctions, *𝑃<0.5, **𝑃<0.01.