Abstract:
Physicochemical characteristics, antioxidant activities and phenolic profile of honey obtained
from extrafloral nectar (EFH) and the honey obtained from a mixed floral source (wild honey)
were compared in this study. The antioxidant capacity of honey samples was examined using
in vitro assays. The honey samples vary widely in their physicochemical as well as antioxidant
properties. EFH samples had Total Phenolic Content (TPC) ranging from 207.4 ± 12.6 mg
gallic acid/kg to 230.3 ± 22 mg gallic acid/kg but did not show potent DPPH radical scavenging
activity. One of the EFH samples has shown 50% inhibition at the tested concentration (100
mg/100 μL) for hydroxyl radical scavenging activity. HPLC chromatograms showed the
presence of gallic acid and chlorogenic acid in the wild and EFH sample. The samples used for
HPLC profiling had higher TPC content (680.95 ± 4.47 mg gallic acid/kg for wild honey and
568.73 ± 3.61 mg gallic acid/kg for EFH) than the 24 samples studied.
