Electrochemical quantification of piperine in black pepper

Yuanzhe Wang; Lifu Chen; Korbua Chaisiwamongkhol; Richard G Compton

doi:10.1016/j.foodchem.2019.125606

Electrochemical quantification of piperine in black pepper

Food Chem. 2020 Mar 30:309:125606. doi: 10.1016/j.foodchem.2019.125606. Epub 2019 Oct 24.

Authors

Yuanzhe Wang¹, Lifu Chen², Korbua Chaisiwamongkhol³, Richard G Compton⁴

Affiliations

¹ Department of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford OX1 3QZ, UK. Electronic address: yuanzhe.wang@wadham.ox.ac.uk.
² Department of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford OX1 3QZ, UK. Electronic address: lifu.chen@chem.ox.ac.uk.
³ Department of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford OX1 3QZ, UK. Electronic address: korbua.chaisiwamongkhol@wolfson.ox.ac.uk.
⁴ Department of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford OX1 3QZ, UK. Electronic address: richard.compton@chem.ox.ac.uk.

PMID: 31678675
DOI: 10.1016/j.foodchem.2019.125606

Abstract

A simple, rapid method of the detection of piperine in black pepper is reported using a voltammetric sensor based on a glassy carbon (GC) electrode with analysis following a short one-step extraction using ethanol. The method is based on a novel potential sweep designed to maximise signal sizes and shown with context of the present analytical challenge to be essential for gathering data allowing the construction of a linear calibration curve for the analysis in the relevant range namely 0.25-5.0 mM.

Keywords: Detection in black pepper; Piperine; Semi-circular potential sweep voltammetry.

MeSH terms

Alkaloids / analysis*
Benzodioxoles / analysis*
Calibration
Carbon
Electrochemical Techniques / instrumentation
Electrochemical Techniques / methods*
Electrodes
Food Analysis / methods*
Piper nigrum / chemistry*
Piperidines / analysis*
Polyunsaturated Alkamides / analysis*

Substances

Alkaloids
Benzodioxoles
Piperidines
Polyunsaturated Alkamides
Carbon
piperine