By treating crude enzyme extract from Aspergillus kawachii, the liquiritigenin content in the licorice (Glycyrrhizae
Radix) was significantly increased. The liquiritigenin content reached its maximum level (45.7 mg/g licorice extract) after 60
min of ...
By treating crude enzyme extract from Aspergillus kawachii, the liquiritigenin content in the licorice (Glycyrrhizae
Radix) was significantly increased. The liquiritigenin content reached its maximum level (45.7 mg/g licorice extract) after 60
min of incubation with the crude enzyme extract at 37oC, while the inactivated crude enzyme treated control contained trace
amount (about 0.11 mg/g) of liquiritigenin. The enzyme-treated licorice extract inhibited more than 50% DPPH radical at 100
ppm and this was about two times higher activity compared to the enzyme-untreated control.