DL-Malic Acid, E297, CAS no.617-48-1, is a isomer of L-Malic Acid manufactured through chemical synthesis, available as White crystals or crystalline powder. DL-Malic Acid used in foods such as wines, beverages, fruit juices and chewing gums. Malic acid can be added in cool drinks, powder drinks, lactic acid drinks, milk drinks and fruit juice drinks to improve their tastes and flavors. Malic acid is often added together with Aspartame, an artificially synthesized dipeptide sweetener, into soft drinks as the flavor stabilizer.

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DL-Malic Acid Specification


ITEMS STANDARD
Appearance White crystals or crystalline powder
Assay 99.0 100.5%
Specific Rotation -0.10 o +0.10 o
Residue on ignition 0.10% max
Water-insoluble substance 0.1% max
Fumaric Acid 1.0% max
Maleic Acid 0.05% max
Heavy metals(as Pb) 10 ppm max
Arsenic(As) 4 ppm max