Bioactive compound content and antioxidant activities of analog rice enriched with the germinated of white corn (zea mays) and the germinated of mung bean (vigna radiata)

Abstract

The research aimed to know bio-active compounds' content and antioxidant activity of rice analog based on germinated white corn (Zea mays), germinated mung bean (Vigna radiata) and white sweet potatoes. There were several stages: first, the formulation of analog rice - the second analyzes of total phenol and flavonoids content. The third is the analysis of antioxidant activity done by DPPH, FTC, and TBA methods. Results showed that formulation I TPC levels are 385.00 ± 0.04 (mgGAE/100g), TFC 267.60 ± 0.42 (mgQCE/100g). Formulation II TPC levels are 379.20 ± 0.85 (mgGAE/100g), TFC 235.40 ± 0.92 (mgQCE/100g). Formulation III TPC levels are 346.50 ± 0.85 (mgGAE/100g), TFC 227.00 ± 0.42 (mgQCE/100g). Antioxidant activity formulation I with DPPH method: 67.71 ± 0.20%; The percentage inhibitory with the FTC 69.10 ± 1.01%, TBA 65.28 ± 0.28%. Antioxidant activity formulation II with DPPH method: 66.57 ± 0.20%; The percentage inhibitory with the FTC 60.63 ± 0.81%, TBA method 64.42 ± 0.58%. Antioxidant activity formulation III with DPPH method: 63.57 ± 0.20%; The percentage inhibitory with the FTC 45.41 ± 0.30%, TBA 63.21 ± 0.58%. There is a significant and positive correlation between bioactive compounds with three methods of antioxidant activity used.