 Industrially, aspartate is produced by amination of fumarate catalyzed by L-aspartate ammonia-lyase.Racemic aspartic acid can be synthesized from diethyl sodium phthalimidomalonate,
(C6H4(CO)2NC(CO2Et)2).In plants and microorganisms, aspartate is the precursor to several amino acids, including four that are essential for humans