L-Malic Acid Assay Kit (Liquid Ready Reagents) 

The L-Malic Acid (Liquid Ready Reagents) test kit is a rapid, simple, reliable and accurate method for the specific measurement and analysis of L-malic acid in wine, beverages, foodstuffs and other materials. Supplied as a “ready to use” liquid stable formulation that is suitable for auto-analyser and microplate formats.

Suitable for auto-analyser and microplate formats.

Product Code
Content/size
Stock
Price
Qty
K-LMALQR
1100 assays (microplate) / 1100 (auto-analyser)
$180.00

In association with DHL Express Megazyme offers expedited same day shipping on all orders received before 12 noon GMT, DHL offers express shipping to over 220 countries worldwide serving 35 countries next day and 65 within 2 days. For further details visit our delivery page. Should delivery error or damage require you to return a product please contact our Customer Service team to obtain shipping instructions and authorisation. For full terms and conditions see T&Cs.

We support the following payment methods:

  • Visa
  • MasterCard
  • American Express
  • Cheque
  • Wire Transfer / EFT /ACH

For further details visit our payment page

UV-method suitable for microplate and auto-analyser formats
for the determination of L-Malic Acid in foodstuffs, beverages
and other materials

Principle:
                      (L-malate dehydrogenase)
(1) L-Malic acid + NAD+ ↔ oxaloacetate + NADH + H+

                        (glutamate-oxaloacetate transaminase)
(2) Oxaloacetate + L-glutamate → L-aspartate + 2-oxoglutarate

Kit size:                             1100 assays (microplate)
                                           / 1100 (auto-analyser)
Method:                             Spectrophotometric at 340 nm
Reaction time:                   ~ 3 min
Detection limit:                 166 mg/L (recommended format)
Application examples:
Wine, beer, fruit juices, soft drinks, candies, fruit and vegetables,
bread, cosmetics, pharmaceuticals and other materials (e.g. biological
cultures, samples, etc.)
Method recognition:    
Methods based on this principle have been accepted by AOAC, EEC,
EN, NF, NEN, DIN, GOST, OIV, IFU, AIJN and MEBAK

Advantages

  • PVP incorporated to prevent tannin inhibition
     
  • “Ready to use” liquid stable formulation
     
  • Very competitive price (cost per test)
     
  • All reagents stable for > 18 Months
     
  • Very rapid reaction (~ 3 min)
     
  • Standard included
     
  • Suitable for microplate and auto-analyser formats

Grape and wine analysis: Oenologists to exploit advanced test kits.

Charnock, S. C. & McCleary, B. V. (2005). Revue des Enology, 117, 1-5.

Megazyme “advanced” wine test kits general characteristics and validation.

Charnock, S. J., McCleary, B. V., Daverede, C. & Gallant, P. (2006). Reveue des Oenologues, 120, 1-5.

Below you will find a link to our dedicated frequently asked questions section. Within this section you will find common questions and answers on a range of topics about the product.

FAQs