Mechanism of specific influence of l-Glutamic acid on the shape of l-Valine crystals

► pH-depending specific interaction between l-Valine and l-Glutamic acid. ► Drastic agglomeration of l-Valine crystals with small amount of l-Glutamic acid. ► Investigation of the mechanism of the agglomeration of l-Valine crystals. ► Change of l-Valine crystal XRD pattern by adding l-Glutamic acid.