Development and validation of an UHPLC-DAD method for simultaneous quantification of twenty-one diverse phenolics and its implementation in household food products

Herein, an ultra-high performance liquid chromatography coupled to a diode array detector (UHPLC-DAD) based quantification method has been developed for the simultaneous determination of 21 bioactive phenolic compounds present abundantly in food products. The developed method was validated in terms of parameters such as linearity, detection and quantification limits, intra-day and inter-day precision and recovery showing ideal results. Further, the developed method was applied for the quantitative analysis of phenolics in commercially procured dietary samples such as spices, green tea, black tea and dark chocolate. The major phenolics quantified in dry weight of different samples were epigallocatechin gallate (425.5 mg/10 g), epicatechin gallate (111.9 mg/10 g) in green tea; gallocatechin (286.8 mg/10 g) in dark chocolate; and naringin (93.9 mg/10 g) in star anise etc. Overall, the UHPLC-DAD-based method was found to be reliable, simple and specific for the estimation of phenolics in different targeted food samples.

Automated summary

An ultra-high performance liquid chromatography coupled to a diode array detector (UHPLC-DAD) based method was developed for the simultaneous determination of 21 bioactive phenolic compounds in food products. The method was validated and showed ideal results, and was successfully applied for the quantitative analysis of phenolics in different targeted food samples.