The Scientific World Journal / 2013 / Article / Tab 1

Research Article

Enhancement of Antioxidant and Isoflavones Concentration in Gamma Irradiated Soybean

Table 1

Effect of different doses of gamma irradiation on isoflavone (genistein, daidzein, genistin, and daidzin), total phenol and tannin contents, DPPH RSC, and FRAP of soybean extracts.

Dose (kGy)Genistein (mg/kg)Daidzein (mg/kg)Genistin (mg/kg)Daidzin (mg/kg)TIC (mg/kg)TPC (mg kat./g)**TTC (mg kat./g)**DPPH RSC (%)**FRAP (FRAP units)**

021.1934.57368.2242.1666.12.2040.96840.261.35
121.4734.51372.4249.8678.22.423*1.182*42.74*1.58*
219.7731.73376.5255.1683.12.319*1.127*43.40*1.24
418.73*31.38*381.2*271.4*702.72.309*1.10345.71*1.38
1018.18*29.00*425.0*283.0*755.2*2.382*1.095*46.20*1.44

Marked values are significantly different in comparison with nonirradiating control (Tukey test, ).
Data obtained from Štajner et al. [11].
TIC: total isoflavone content (sum of all 4 isoflavones); TPC: total phenol content; kat: katechine; TTC: total tannin content; DPPH RSC: DPPH radical scavenging capacity; FRAP: ferric reducing antioxidant capacity.

Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.