Physicochemical parameters, multi-elemental composition and antiradical activity of multifloral honeys from Apis cerana cerana in Hainan province, China

Quantification of bioactive components and evaluation of microbial community and antibacterial activity from Heterotrigona itama and Tetrigona binghami honeys

“…A calibration curve was obtained using an external standard for quercetin at a range of 15–125 μg mL −1 ( y = 0.0141 x + 0.2227, R 2 = 0.9999), and TFC was expressed as mg of quercetin equivalents (QE) per 100 g of honey (mg QE 100 g −1 ). TPC was measured at 790 nm according to the Folin–Ciocalteu method using a spectrophotometer (Wu et al ., 2022b). A calibration curve was obtained using an external standard for gallic acid at a range of 6.25–50 μg mL −1 ( y = 0.0007 x − 0.0674, R 2 = 0.9908), and TPC was expressed as gallic acid equivalent (mg GAE 100 g −1 ).…”