malic acidAn organic dibasic acid, (HOOCCH(OH)CH2COOH). Malic acid has several important roles in the body's metabolism, notably in the citric acid cycle (Kreb's cycle), which is concerned with the production of energy during respiration. It is found in the juice of unripe apples and some other fruit. Melting point 113°C. Related category• ORGANIC CHEMISTRYAlso on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History |