lagos antioxidant dtpd ( dmpd)
lagos antioxidant dtpd ( dmpd)
lagos antioxidant dtpd ( dmpd)
lagos antioxidant dtpd ( dmpd)
lagos antioxidant dtpd ( dmpd)
  • How does DMPD + affect antioxidant capacity?
  • In this level of concentrations, the antioxidant Trolox is able to transfer a hydrogen atom to the radical cation DMPD Å+ , so the colour of the solution of the radical diminishes proportionally to its concentration (Asghar et al., 2007). These results confirm the capacity of the radical cation DMPD Å+ to evaluate the antioxidant capacity. ... ...
  • What is DMPD radical cation?
  • DMPD radical cation (DMPD •+) is generated through a reaction between DMPD and potassium persulfate and is subsequently reduced in the presence of hydrogen-donating antioxidants. This assay has a clear edge over the previous DMPD assay (the DMPD/FeCl 3 assay) for the determination of antioxidant activity on a number of counts.
  • Does DMPD scavenge free radicals?
  • The free radical scavenging activity as antioxidant of the monoterpenes was evaluated using the stable radical N,N-dimethyl-1,4-phenylenediamine (DMPD) with concentrated 100 mM DMPD solution (Asghar et al. 2007; Badawy et al. 2016;Fogliano et al. 1999). Standard solution of ascorbic acid (50-1000 mM) was prepared in deionized water. ... ...
  • What are analytical protocols involving DPPH radicals?
  • Analytical protocols involving DPPH radical are varied. Drawing up an analytical protocol seems to be a simple procedure. The radical is freely soluble in methanol or ethanol, solvents that also dissolve most of the antioxidants which are of technological or functional interest.