[A study of scavenging action of purslane aquenous extracts on oxygen free radical].
Auto-oxidation in alkalesent solution with the help of pyrogallol can generate O2.-, and the system of 1, 10-phenathroline-Fe(II)/H2O2 can produce .OH. Spectropholometry (wave length 322 nm and 536 nm) was used to observe the effect of fresh purslane aqueous extracts and the purslane aquenous extracts processed by boiling water upon O2.- and .OH. The results showed that fresh purslane aqueous extracts could obviously help generate O2.- and reduce .OH, and the aqueous extracts of purslane processed by boiling water had a scavenging action on O2.- and .OH greatly.
Zeng
X
X
Department of Chemistry, Hunan Medical University, Changsha 410078.
D004365:Drugs, Chinese Herbal / Q000494:pharmacology*; D016166:Free Radical Scavengers / Q000494:pharmacology*; D013481:Superoxides
D004365:Drugs, Chinese Herbal; D016166:Free Radical Scavengers; D013481:Superoxides