BIOAKTIVITAS ANTIOKSIDAN SENYAWA EKSOPOLISAKARIDA DARI MIKROALGA DUNALIELLA SP.
ABSTRACT: A study of
antioxidant compounds in microalgae, Dunaliella sp. In Conway / Walne media.
Microscope observation with magnification 400 times obtained diameter
Dunaliella sp. Sebebsar 6.42 μm. Preliminary results of antioxidant activity
using DPPH reagent showed Dunaliella sp. Excreting antioxidant compounds. The
extract obtained by extracting antioxidant compounds exopolysaccharide
compounds from the filtrate with the addition of 70% ethanol and then
centrifuged and freeze-dried by the method of FTIR spectrum data dry.
Unidentified exopolysaccharide compounds containing uptake helping O - H in the
area of 3544.82 cm-1, C - H in area of 2828.59 cm-1, helping the C • O at
1624.24 cm-1 region, CH2 bending at 1419.44 cm-1 region, and helping C - O at
1151.88 cm-1 region. Furthermore, quantitative test results of antioxidant
compounds that have a value of 4.279%. So it is concluded that the
exopolisakarida compound from Dunaliella sp. Is a potential source of
antioxidant compounds.
Keywords: Antioxidant,
exopolisaccharide, Dunaliella sp.
Penulis: Diah Astika Winahyu
Kode Jurnal: jpfarmasidd170056
