This European Standard specifies an enzymatic method for the determination of the total content of D-isocitric acid, present either in the form of the free acid or its salts including esters and lactones in fruit and vegetable juices and related products.
BS EN 1139:1995 history
1995BS EN 1139:1995 Method for determination of D-isocitric acid content of fruit and vegetable juices - NADPH spectrometric method