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Method for the simultaneous determination of total polyphenol and anthocyan indexes in red wines using a flow injection approach

By Jose Gonzalez-Rodriguez, maria Dolores Luque de castro and Pedro Perez Juan

Abstract

A simultaneous and fast method for the determination of total polyphenol index (t.p.i.) and total anthocyan index (t.a.i.) has been developed by a flow injection approach and a diode array spectrophotometer for monitoring at 280 nm and 520 nm, respectively. Linear ranges were obtained from 20 to 70 index units and from 20 to 500 mg l-1 for t.p.i. and t.a.i., respectively. The results provided by the proposed method agree with those obtained using the polyphenol index at 280 nm and the Ribereau-Gayon method for the determination of total anthocyans. The sample throughput was 25-30 samples per hour. Analytical features such as repeatability, reproducibility and detection and quantification limits as well as the results of a robustness study based on the Steiner-Younden procedure are also given

Topics: F110 Applied Chemistry, F190 Chemistry not elsewhere classified, F100 Chemistry, F180 Analytical Chemistry
Publisher: ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Year: 2002
DOI identifier: 10.1016/S0039-9140(01)00550-1
OAI identifier: oai:eprints.lincoln.ac.uk:2123

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Citations

  1. (1990). Recueil des méthodes Internationales d´Analyse des Vins et des Mouts, Office International de la vigne et du vin, O.I.V.,

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