Open AccessScreening for Antioxidant Activity in Extracts of the Marine Macro algae Enteromorpha flexuosa (Wulfen) J. Agardh from South Aceh
Author(s) -
Mohamad Gazali,
Nurjanah Nurjanah,
Neviaty Putri Zamani,
Muhammad Arif Nasution,
Zuriat,
Rina Syafitri
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/763/1/012027
Subject(s) - phytochemical , antioxidant , biota , ethyl acetate , green algae , botany , food science , chemistry , biology , algae , traditional medicine , biochemistry , ecology , medicine
Indonesia is the world’s largest archipelagic nation with high marine biodiversity that can provide added value for local communities through using renewable resources. Aceh is one of the provinces in Indonesia directly facing the Indian Ocean with many marine biota distributed along the coast. Marine macroalgae are marine biota with potential for medicines and foodstuffs that have long been consumed by local communities in Aceh. Many marine macroalgae in Aceh coastal waters, especially along the south coast, contain a wide range of bioactive compounds with potential antioxidant activity. The aim of this study was to screen for antioxidant activity in extracts of the green macroalga Enteromorpha flexuosa . Green algae of E. flexuosa were taken from along the South Aceh coastal zone. The research methods included extraction followed by phytochemical and antioxidant activity assays. The rendement of E. flexuosa extracts were ethanol with value of 1.38%; ethyl acetate with value of 1.11%; and n-hexane with value of 0.42%. The phytochemical analysis showed phenol and flavonoid compounds in the E. flexuosa extracts. The CUPRAC method for determining antioxidant activity showed activity of 96.40 μmol troloks/g in the ethanol extract; 16.77 μmol troloks/g in the ethyl acetate extract; and 22.38 μmol troloks/g in the n-hexane extract. These results showed that the ethanolic extract possesses the antioxidant capacity strongly than other extracts. There are indications that phenol compounds influenced antioxidant activity in the E. flexuosa extracts. Using the FRAP method to determine the antioxidant activity of the extracts was: ethanol extract 474%, ethyl acetate 363.50% and n-hexane 239.50%. These levels of antioxidant activity in the extracts point to E. flexuosa as a potential source of antioxidants that could provide benefits when used in marine natural products.