Enzymatic determination of L (-) malic and L (+) lactic acids in wine by flow injection analysis

JÉLFC Lima, AOSS Rangel - American journal of enology …, 1992 - Am Soc Enol Viticulture
The enzymatic determination of L (-) malic and L (+) lactic acids in several types of wines by
flow injection analysis (FIA) with spectrophotometric detection is described. This flow …

Enzymatic determination of L (+) lactic and L (−) malic acids in wines by flow-injection spectrophotometry

JLFC Lima, TIMS Lopes, AOSS Rangel - Analytica chimica acta, 1998 - Elsevier
A flow-injection system for the enzymatic determination of L (+) lactic acid and L (−) malic
acid in wines with spectrophotometric detection is described. The samples are dialysed in …

Simultaneous enzymatic determination of L (−) malic acid and L (+) lactic acid in wine by flow injection analysis

R Puchades, MA Herrero, A Maquieira, J Atienza - Food chemistry, 1991 - Elsevier
A simultaneous determination of two organic acid species in wine by a flow injection
analysis method using enzyme-immobilized open tubular reactors is described. The design …

Determination of l-(−)-malic acid and l-(+)-lactic acid in wine by a flow injection-dialysis-enzymic derivatisation approach

E Mataix, MDL de Castro - Analytica chimica acta, 2001 - Elsevier
A simultaneous flow injection method for the determination of malic and lactic acids in wines
based on the coupling of dialysis-enzymic derivatisation with either photometric or …

A new approach to dialysis in sequential injection systems: spectrophotometric determination of L (+)-lactate in wines

AN AraÚJO, JLFC Lima… - … journal of enology …, 1997 - Am Soc Enol Viticulture
A sequential injection analysis (SIA) system for the spectrophotometric determination of L (+)-
lactate using lactate oxidase/peroxidase was developed and applied to wine analysis. It …

Simultaneous flow injection analysis of L‐lactate and L‐malate in wine based on the use of enzyme reactors

S Yoshioka, H Ukeda, K Matsumoto… - Electroanalysis, 1992 - Wiley Online Library
The simultaneous determination of L‐malate and L‐lactate, by enzyme‐supported flow
injection analysis (FIA), was developed using two enzyme reactors in parallel and a single …

Kinetic determination of l (−) malic acid in wines using sequential injection analysis

MA Segundo, AOSS Rangel - Analytica chimica acta, 2003 - Elsevier
In the present work a sequential injection system for the enzymatic determination of l (−)
malic acid in wines is described. The determination was based on the detection of NADH …

Indirect fluorometric determination of lactic acid in wine

G Burini - Journal of AOAC International, 1993 - academic.oup.com
A sensitive, specific, and reliable fluorometric method for the determination of lactic acid in
wine is described. After the wine sample was boiled and diluted, lactic acid was …

Enzymatic determination of free l-(−)-malic acid in must and wine by stopped-flow flow-injection analysis

CG De Maria, TM Muñoz, AA Mateos, LG De Maria - Analytica chimica acta, 1991 - Elsevier
Flow-injection/stopped-flow procedures are described for the determination of free l-(−)-
malic acid based on the catalytic activity of malate dehydrogenase. Malic acid …

L-Malate determination in wines and fruit juices by flow injection analysis adaptation of a coupled dehydrogenase/transferase system

GC Chemnitius, RD Schtnid - Analytical letters, 1989 - Taylor & Francis
A flow injection system for the enzymatic determination of L-malate is described. It is
adapted for the analysis of wines and fruit juices by in-line sample dilution. Malate …