Malic Acid Test Strips (BA0177)

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ELISA Kit Technical ManualMSDS

About Malic Acid:

L-MALIC ACID, or L-malate, is a dicarboxylic acid that is made by all living organisms and plays an important role in the Calvin and Krebs Cycle. Malic acid is frequently used in food and beverage industries as an additive in products such as wine, beer, candies, etc. It can be used as an acidity regulator, preservative, or simply added for flavor. In the wine industry, decreasing levels of L-malic acid and increasing levels of L-Lactic Acid are monitored during malolactic fermentation. As L-malic acid is converted to L-lactic acid, the overall acidity of the wine is reduced which can lead to the improvement of the flavor of the wine.

How our L-Malic Acid Test Strips Work:

Assay Genie's  L-Malic Acid Test Strips are based on L-malate dehydrogenase catalyzed oxidation of L-malic acid in which the formed NADH reduces a chromogenic reagent. The intensity of the product color is directly proportional to the L-malic acid concentration in the sample.


Direct determination of malic acid concentrations in food and beverage samples as well as biological (e.g. urine, blood, etc.) samples.

Key Features

  • Fast and sensitive. Use of 20 or 100 uL sample. Semi-quantitative measurement between 0-500 mg/L (undiluted) malic acid.
  • Convenient. No extra equipment required.
  • Sample treatment and assay can be performed in under 15 minutes.
Kit Includes: Ten Test Strips - Ten Sample Development Tubes (400 uL Development Buffer per tube)
Method of Detection: Visual
Samples: Wine, beer, milk, etc
Species: All
Protocol Length: 15 minutes
Size: 10 tests
Storage: Keep strips dry and out of direct sunlight. For long term storage (> 30 days), we recommend keeping the Sample Development Tubes at 4'C or below
Shelf Life: 6 months
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