earticle

영어

Water and 70% ethanol extracts obtained from a sea cucumber (Stichopus japonicus) body wall by heat reflux orpressurized solvent extraction showed 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) radical cation (ABTS-+) scavenging activities comparable to those of fruits and vegetables. The highest activitieswere observed for the water extract from heat reflux extraction. Crude saponins exhibited higher radical scavenging activitiesthan the soluble matters in the extracts. However, they were responsible for only about 3 to 15% of the scavenging activities ofthe extracts. Total phenolic contents showed a significant correlation with DPPH scavenging activities, suggesting asignificant contribution of phenolic constituents to the antioxidant properties of the extracts. However, total flavonoid contentsshowed little correlation with the radical scavenging activities. The results suggest that the water or 70% ethanol extractobtained from sea cucumber body wall by simple heat reflux extraction could provide considerable antioxidant benefits.