Abstract:
Abstract: Total polyphenol, antioxidant activity, and heavy metal contents in
selected Ethiopian beers (Dashen= B1, Harar = B2, Habesha= B3, Saint George= B4,
and Walya= B5) were investigated. The average concentration of total phenolic
content in B1, B2, B3, B4, and B5 were found to be 219.80, 206.09, 190.24, 193.00,
and 212.10 mg GAE/L, respectively. The obtained results showed that B1 contained
significantly highest total polyphenol content (219.80±2.83 mg/L) and showed the
highest radical scavenging capacities (84.16±0.65). According to Pearson’s correlation between polyphenol extract with antioxidant activities, suggested that phenolic
compound in beer were contributor to antioxidant activity. Similarly, all the beer
samples were analyzed for Cd, Cr, Cu, Ni, and Pb with flame atomic absorption
spectrophotometer. The total metal concentrations of Cd, Cr, Cu, Ni, and Pb were
found to be in the range of (ND–0.022 mg/L), (0.02 −0.041), (0.023-0.054), (ND-
0.064), and (ND-0.022 mg/L), respectively. The efficiency of the procedure was
validated by spiking and the percent recovery of the metals varied from 90.9 to
104.3%.
