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- Title
Calligonum polygonoides Linnaeus Extract: HPLC-EC and Total Antioxidant Capacity Evaluation.
- Authors
Gomes, Sara M. C.; Fernandes, Isabel P. G.; Shekhawat, Narpat Singh; Kumbhat, Sunita; Oliveira ‐ Brett, Ana Maria
- Abstract
Flavonoids in Calligonum polygonoides Linnaeus extract were separated, detected, and identified by reverse-phase high-performance liquid chromatography (RP-HPLC) with electrochemical detection (EC) in combined isocratic and gradient elution using a glassy carbon or a boron doped diamond electrode. Ultrasonication coupled with a microwave-assisted technique was developed to optimize the extraction of the phenolic compounds. The total antioxidant capacity was quantified using the DPPH. method and voltammetry. The RP-HPLC-EC led to the detection of nine different flavonoids: catechin, delphinidin, fisetin, myricetin, epicatechin, kuromanin, rutin, callistephin and procyanidin A2, in a single run by direct injection of the sample extract solution.
- Subjects
FLAVONOIDS; HYDROPHILIC interaction liquid chromatography; CARBON electrodes; ELECTRODES; PROCYANIDINS
- Publication
Electroanalysis, 2015, Vol 27, Issue 2, p293
- ISSN
1040-0397
- Publication type
Article
- DOI
10.1002/elan.201400555