“…Natural products, such as polyphenols, are rich sources to identify antibiotics or antibacterial agents [30–32] . For instance, ellagic acid, found in a large variety of foods including pecan, walnuts, cranberries, strawberries, and pomegranates, [33] is a potent bacterial DNA gyrase inhibitor [34] and has antibacterial activities [35,36] . Antibiotic novobiocin, produced by Streptomyces niveus , [37] is also a polyphenol [38] and has strong antibacterial activities especially against Gram‐positive bacteria [39] .…”