An improved flow-based procedure for microdetermination of total tannins in beverages with minimized reagent consumption

Microchimica Acta

Volumn 161, Issue 1-2, 2008, Pages 279-283

  Infante, Carlos M C ^a   Soares, Vitória R B ^b   Korn, Mauro ^b   Rocha, Fábio R P ^a  

^a UNIVERSITY OF SÃO PAULO   (Brazil)

^b UNIVERSIDADE DO ESTADO DA BAHIA   (Brazil)

Author keywords

Flow analysis; Folin Denis reagent; Multi pumping; Multicommutation; Tannin

Indexed keywords

EID: 43449099174     PISSN: 00263672     EISSN: 14365073     Source Type: Journal    
DOI: 10.1007/s00604-007-0875-z     Document Type: Article

References (15)

1. M C Yebra M Gallego M Valcárcel 1995 Indirect flow-injection determination of tannins in wines and tea by atomic absorption spectrometry Anal Chim Acta 308 357
2. E Piccin H J Vieira O Fatibello-Filho 2005 Flow-injection turbidimetric determination of tannins in tea samples using copper(II)/acetate as precipitant reagent Anal Lett 38 511
3. O Folin W Denis 1912 On phosphotungstic-phosphomolybdic compounds as color reagents J Biol Chem 12 239
4. C Tomàs M Celeste A Cladera E Gómez J M Estela V Cerda 1993 A new flow-injection spectrophotometric method for determination of tannins in tea and beer using iron(III) and 1,10-phenanthroline Food Chem 47 201
5. H P S Makkar 1989 Protein precipitation methods for quantification of tannins - a review J Agric Food Chem 37 1197
6. E C Ferreira A R A Nogueira 2000 Vanillin-condensed tannin study using flow injection spectrophotometry Talanta 51 1
7. Y Ittah 1991 Titration of tannin via alkaline-phosphatase activity Anal Biochem 192 277
8. Horwitz W (ed) (2002) Official methods of analysis of AOAC International, 17th edn. AOAC International
9. V L Dressler E L Machado A F Martins 1995 Spectrophotometric determination of tannin in tanning effluent with a flow injection system Analyst 120 1185
10. M Peris D Muller A Maquieira 1991 Determination of total polyphenols in beers by flow injection analysis Food Chem 40 1
11. S Feng A Tang J Jiang J Fan 2002 Spectrofluorimetric determination of tannins based on their activative effect on the Cu(II) catalytic oxidation of rhodamine 6G by hydrogen peroxide Anal Chim Acta 455 187
12. B F Reis M F Giné E A G Zagatto J L F C Lima R A Lapa 1994 Multicommutation in flow analysis. Part 1. Binary sampling: concepts, instrumentation and spectrophotometric determination of iron in plants Anal Chim Acta 293 129
13. E A G Zagatto M A Z Arruda A O Jacintho I L Mattos 1990 Compensation of the Schlieren effect in flow injection analysis by using dual wavelength spectrophotometry Anal Chim Acta 234 153
14. M Celeste C Tomàs A Cladera J M Estela V Cerda 1992 Enhanced automatic flow-injection determination of the total polyphenol index of wines using Folin-Ciocalteu reagent Anal Chim Acta 269 21
15. C L Moreno P C Rudner J M C Garcia J M C Pavón 2004 Development of a sequential injection analysis device for the determination of total polyphenol index in wine Microchim Acta 148 93