Corpus ID: 22231968

Effect of salt ( zinc chloride ) on antioxidant activity of gallic

@inproceedings{Liew2003EffectOS,
  title={Effect of salt ( zinc chloride ) on antioxidant activity of gallic},
  author={Liew and Leong and and Bettens},
  year={2003}
}
The first 100s of reaction between gallic acid (GA) and 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radical follows the second order reaction. The addition of zinc (Zn) significantly enhanced the rate of reaction, such that the rate constant when GA:Zn is 1:1 was significantly higher, (P<0.05), 120 ± 12 Ms as compared to 92 ± 6 Ms when zinc was absent. However, the addition of excess zinc, GA:Zn 1:2, decreased the second order rate constant to 75 ± 9 Ms Therefore, the presence of catalytic amount of… Expand

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References

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