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

Gonzalez-Rodriguez, Jose and Luque de castro, maria Dolores and Perez Juan, Pedro (2002) Method for the simultaneous determination of total polyphenol and anthocyan indexes in red wines using a flow injection approach. Talanta, 56 (1). pp. 53-59. ISSN 0039-9140

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Method for the simultaneous determination of total polyphenol and anthocyan indexes in red wines using a flow injection approach
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.
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Full text URL: http://dx.doi.org/10.1016/S0039-9140(01)00550-1

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.

Item Type:Article
Keywords:spectrophotometry, polyphenols, anthocyans, flow injection, wine, phenolic compounds, automation, method validation, experimental design, chemometry
Subjects:F Physical Sciences > F110 Applied Chemistry
F Physical Sciences > F190 Chemistry not elsewhere classified
F Physical Sciences > F100 Chemistry
F Physical Sciences > F180 Analytical Chemistry
Divisions:College of Science > School of Life Sciences
ID Code:2123
Deposited By: Jose Gonzalez-Rodriguez
Deposited On:06 Jan 2010 15:00
Last Modified:05 Jun 2013 15:10

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