@misc{10498/27251, year = {2022}, month = {5}, url = {http://hdl.handle.net/10498/27251}, abstract = {Coconut is widely used as a food source in producing countries, and during consumption, the waste that is generated needs to be reduced through by-products processing to ensure environmental sustainability. This study aimed to assess the functionality of by-products (endoand mesocarp) of coconuts at early and mature stages. The aqueous and ethanolic (50 and 100% ethanol in water) extracts of coconut by-products were evaluated for the DPPH radical scavenging activity and subjected to linoleic acid-beta-carotene system assay in contrast with synthetic antioxidants. Ultrasound-producing extract of young coconut mesocarp provided the highest antioxidant activity with a lower IC50 value (117 mu g mL(-1)) than butylhydroxytoluene (BHT, 170 mu g mL(-1)). Based on the linoleic acid-beta-carotene system assay, the extract exhibited a higher antioxidant activity (1.25 x) than tertiary butylhydroquinone (TBHQ, 200 mu g mL(-1)); and comparable with butylhydroxyanisole (BHA, 250 mu g mL(-1)). Therefore, extracts of coconut by-products, particularly the young mesocarp, can be an alternative natural antioxidant.}, publisher = {MDPI}, keywords = {endocarp}, keywords = {mesocarp}, keywords = {natural antioxidants}, keywords = {radical scavenging activity}, keywords = {ultrasoundassisted extraction}, title = {Antioxidant Activity of Aqueous and Ethanolic Extracts of Coconut (Cocos nucifera) Fruit By-Products}, doi = {10.3390/agronomy12051102}, author = {Leliana, Lulum and Setyaningsih, Widiastuti and Palma Lovillo, Miguel and Supriyadi and Santoso, Umar}, }