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  Indian J Med Microbiol
 

Figure 4: (a) Effect of sodium hydrosulfiteon the phenylalanine ammonia lyase activity. sodium hydrosulfiteshow no signs ofincreasing the activity of phenylalanine ammonia lyase. (b) Integrate effect of hydrogen peroxide on UBGAT and β-glucuronidase activity. “N,” “C,” “H,” and “S” stands for denatured enzyme, control with normal enzyme, treated with hydrogen peroxide, and treated with sodium hydrosulfite, respectively. Compared with denatured enzymes, the baicalin contents in the other groups decreased remarkable. Compared with control group, the baicalin contents in hydrogen peroxidegroupdecreased remarkable at the 1 h,but the sodium hydrosulfitegroup decreased to some extent at the 3rd h, indicating sodium hydrosulfite acts through hydrogen peroxide. P < 0.05 marked by “*,” P < 0.01 by “**” Control 0.0004 mmol/L sodium hydrosulfite0.04 mmol/L sodium hydrosulfite 4.0 mmol/L sodium hydrosulfite

Figure 4: (a) Effect of sodium hydrosulfite<sub></sub>on the phenylalanine ammonia lyase activity. sodium hydrosulfite<sub></sub>show no signs of<sub></sub>increasing the activity of phenylalanine ammonia lyase. (b) Integrate effect of hydrogen peroxide on UBGAT and β-glucuronidase activity. “N,” “C,” “H,” and “S” stands for denatured enzyme, control with normal enzyme, treated with hydrogen peroxide, and treated with sodium hydrosulfite, respectively. Compared with denatured enzymes, the baicalin contents in the other groups decreased remarkable. Compared with control group, the baicalin contents in hydrogen peroxide<sub></sub>group<sub></sub>decreased remarkable at the 1 h,<sub></sub>but the sodium hydrosulfite<sub></sub>group decreased to some extent at the 3<sup>rd</sup> h, indicating sodium hydrosulfite acts through hydrogen peroxide. <i>P</i> < 0.05 marked by “*,” <i>P</i> < 0.01 by “**” Control 0.0004 mmol/L sodium hydrosulfite<sub></sub>0.04 mmol/L sodium hydrosulfite 4.0 mmol/L sodium hydrosulfite