Figure 1.
The physicochemical property analysis. The total sugar content (A), the uronic acid content (B), and FT-IR spectroscopy (C) of Polygonatum cyrtonema Hua. are processed by different times of repeated steaming (0-Z indicates no steam process; 1-Z–9-Z is the number of steaming times. Tested for three times at 25°C, p < 0.05.