UJI AKTIVITAS ANTIOKSIDAN HASIL DEGRADASI LIGNIN DARI SERBUK GERGAJI KAYU KALBA (Albizia falcataria) DENGAN METODE TBA (Thio Barbituric Acid)
ABSTRACT: Antioxidants are
compounds that can delay, retard or inhibit the oxidation reaction. Lignin is a
natural polymer consisting of monomeric substituted phenols. Wood lignin
degradation Kalba (Albizia falcataria) yields substituted phenol. The purpose
of this study was to test the antioxidant activity of compounds of lignin
degradation products Kalba using TBA (Thiobarbituric Acid). Wood lignin
degradation products Kalba tested antioxidant activity using the TBA method.
Phase test phase of this antioxidant activity is sample preparation,
determination of the maximum wavelength, determination of equilibrium time,
absorbance measurements and determination of the percentage of inhibition. The
wavelength maximum for BHT test solution was obtained at 530 nm. The stability
of absorbance achieved after 80 minutes equilibrium time. BHT test solution and
sample solution containing the degradation of lignin 0.10% (w/v) increased but not
as sharp as the absorbance of control, this suggests that the degradation
of wood lignin Kalba have activity as an
antioxidant, which relative minimize 13,70 % compare with BHT.
Penulis: Undri Rastuti dan Purwati
Kode Jurnal: jpbiologidd100034
