Antioxidant capacity of dry sea cucumber Holothuria edulis, Pearsonothuria graeffei, and Stichopus herrmanni from Boalemo waters, Gorontalo, Indonesia

Abstract Sea cucumber was a marine invertebrate from class Holothuroidea and phylum Echinoderm that possessed various bioactive compounds. This study aimed to estimate the antioxidant properties of sea cucumbers evaluate their ability. Ferric Reducing Antioxidant Power (FRAP) Cupric Capacity (CUPRAC) assay estimated cucumbers, for control, ascorbic acid Trolox were used. The samples dried Holothuria edulis, Pearsonothuria graeffei , Stichopus herrmannii Boalemo, Gorontalo. three had capacities. H. edulis highest value, both in FRAP CUPRAC assay, followed by P. S. herrmanni . values 48.47; 28.32; 11.95 μmol Fe(II), respectively 6.5; 5.9; 1.49 Trolox/g extract. weak extract methods most likely related absence phenolic compounds which usually have OH groups conjugated double bonds. Separation purification crude may improve its properties. Based on this research, it can be concluded capacity using method weak.