and fermentation technology has great potential

Malic Acid, that is, 2-hydroxysuccinic acid, has an asymmetric carbon atom in its molecule, so it has two stereoisomers, namely D-malic acid (dextrorotatory form) and L-malic acid. Acid (Levorotary body), in addition to the above two forms, there is also a kind of DL-malic acid in nature consisting of its mixture. Among them, most of…