Issue 17, 2016

Lab-on-a-disc for simultaneous determination of total phenolic content and antioxidant activity of beverage samples

Abstract

In this paper, we present a fully integrated and automated lab-on-a-disc for the rapid determination of the total phenolic content (TPC) and antioxidant activity (AA) of beverage samples. The simultaneous determinations of TPC and AA on a spinning disc were achieved by integrating three independent analytical techniques: the Folin–Ciocalteu method that is used to measure TPC, the 2,2-diphenyl-1-picrylhydrazyl radical (DPPH) method and the ferric reducing antioxidant power method that are used to measure AA. The TPC and AA of 8 different beverage samples, including various fruit juices, tea, wine and beer, were analyzed. Unlike conventional labor-intensive processes for measuring TPC and AA, our fully automated platform offers one-step operation and rapid analysis.

Graphical abstract: Lab-on-a-disc for simultaneous determination of total phenolic content and antioxidant activity of beverage samples

Supplementary files

Article information

Article type
Paper
Submitted
17 May 2016
Accepted
01 Jul 2016
First published
01 Jul 2016

Lab Chip, 2016,16, 3268-3275

Lab-on-a-disc for simultaneous determination of total phenolic content and antioxidant activity of beverage samples

A. Phonchai, Y. Kim, R. Chantiwas and Y. Cho, Lab Chip, 2016, 16, 3268 DOI: 10.1039/C6LC00646A

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