Study on antioxidation of polysaccharide from Opuntia monacantha haw
Cactus polysaccharides from Opuntia monacantha Haw were extracted and purified by ultrafitration concentration and ethanol precipitation. The extracted polysaccharides were sorted by 55% and 80% concentration ethanol into OMHP1 and OMHP2. The antioxidant potency of the polysaccharides was investigated by spectrophotometry, employing various established in vitra system, such as 1.1-diphenyl-2-picrylhydrazyl(DPPH), superoxide anion, hydroxyl radical scavenging. The results revealed that the extracted polysaccharides had significant free radical-scavenging activity, while OMHP2 had higher free radical-scavenging activity than OMHP1.