Research Article

Polyphenol-Rich Extracts of Traditional Culinary Spices and Herbs and Their Antibacterial Activity in Minced Beef

Table 3

Extracts’ yield, total phenolic contents, and antioxidant potential of spices.

SpicesSolventExtracts yield (%)TPC (mg GAE/100 g)DPPH (%)

OnionMeOH9.5 ± 1.5a55.9 ± 3.2bc54.4 ± 3.8e
EtOH5.9 ± 0.5bc36.0 ± 4.6hi43.1 ± 4.4g

GingerMeOH5.5 ± 1.6bc70.8 ± 3.3a75.9 ± 3.9a
EtOH3.2 ± 0.9ef54.1 ± 3.4bcd66.3 ± 5.0bc

TurmericMeOH4.8 ± 0.1cd51.6 ± 1.6cde61.4 ± 1.9cd
EtOH6.2 ± 1.2b42.7 ± 6.0fgh46.1 ± 4.0fg

CorianderMeOH2.4 ± 0.3f69.8 ± 1.6a70.5 ± 2.5ab
EtOH3.1 ± 0.0ef49.0 ± 0.5def51.7 ± 1.6ef

FennelMeOH5.4 ± 0.1bc46.3 ± 5.2efg56.2 ± 5.2de
EtOH4.0 ± 0.0de34.8 ± 4.7i41.2 ± 1.2g

MintMeOH3.9 ± 0.1de59.1 ± 5.7b62.1 ± 3.2c
EtOH3.0 ± 0.0ef40.6 ± 2.9ghi42.6 ± 1.2g

Mean ± SD; means bearing same letters in a column are statistically nonsignificant at . MeOH = hydromethanolic extracts; EtOH = hydroethanolic extracts; TPC = total phenolic content; DPPH = diphenyl picrylhydrazyl.