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Issue 17, 2016
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Lab-on-a-disc for simultaneous determination of total phenolic content and antioxidant activity of beverage samples

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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

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Supplementary files

Article information


Submitted
17 May 2016
Accepted
01 Jul 2016
First published
01 Jul 2016

Lab Chip, 2016,16, 3268-3275
Article type
Paper

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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