Figure 2.

Effects of different doses of UST extracts on CAT, SOD, GSH, and MDA in liver. (A) CAT, (B) SOD, (C) GSH, and (D) MDA: UST extract (50, 100, and 200 mg/kg body weight). One unit of CAT activity is defined as the amount of protein which decomposes 1 μmol H₂O₂ per second. One unit for SOD activity is defined as the amount of protein necessary to inhibit 50% of the SOD reaction where superoxide radicals oxidize hydrosylamine to produce nitrite. UST, the group treated with ultrasound and tannase; TAN, the group treated with only tannase; US, the group treated with only ultrasound; GTE, the group treated without ultrasound and tannase. The values are presented as means ± SD. Bars with different letters (a–c) are significantly different (p < 0.05). * p < 0.05, the model group vs. the control group.