Malic a. : Pertaining to, or obtained from, apples; as, malic acid.

Example:
What form of Malic acid could I take to replace the 5 green apples per day in a liver cleanse?

Taxonomy
Malic acid, malate, compounds, H2O, free encyclopedia, oxaloacetate, CO2, NAD, sodium malate, citric acid cycle, Malate dehydrogenase, mitochondria, guard cells, converts, candy, NADH, NAD(P, fumarate.

Defination from the web:
Malic acid was first isolated from apple juice by Carl Wilhelm Scheele in 1785. ... Malic acid, when added to food products, is denoted by E number E296. ... The cycle is completed when silver oxide takes this compound back to (-)-malic acid. ...