The radical scavenging activity (RSA) of the methanol
extracts of FRB, LDRB, CDRB and synthetic antioxidant
TBHQ, as determined by DPPH assay at different concentrations
[100, 200 and 400 μg] is shown in Fig. 1. The
scavenging ability of extracts against DPPH was concentration
dependent. TBHQ (91.86%) exhibited higher RSA
and among the extracts, FRB (60.83%) showed high RSA
followed by CDRB (59.69%) and LDRB (58.93%). The
reductive capabilities of the methanolic extracts at two
concentrations (100 and 200 μg) of FRB, LDRB, and
CDRB was observed and compared with synthetic antioxidant
BHT as shown in Fig. 2.
The radical scavenging activity (RSA) of the methanolextracts of FRB, LDRB, CDRB and synthetic antioxidantTBHQ, as determined by DPPH assay at different concentrations[100, 200 and 400 μg] is shown in Fig. 1. Thescavenging ability of extracts against DPPH was concentrationdependent. TBHQ (91.86%) exhibited higher RSAand among the extracts, FRB (60.83%) showed high RSAfollowed by CDRB (59.69%) and LDRB (58.93%). Thereductive capabilities of the methanolic extracts at twoconcentrations (100 and 200 μg) of FRB, LDRB, andCDRB was observed and compared with synthetic antioxidantBHT as shown in Fig. 2.
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