Free Amino Acids in Different Organs of Scutellaria baicalensis

We investigated the free amino acids content in different plant parts of golden root (Scutellaria baicalensis) and identified 21 different free amino acids, the levels of Which varied widely between,Organs. the amount of free amino, acids in the flower was Much higher than 1, that in the leaf (3.4-fold), Stem (1.9-fold) and root (5.3-fold)Most of the free amino acids were present in higher amounts in the flower; 1 in particular, a markedly higher amount of,glutamine was,observed in the flower, which, contained 27, 11 and 2 tunes More glutamine than, the root, leaf and stem. Norvaline was found only in the root which also contained much higher amounts of leucine (37-, 28-, and 9-fold higher than in the leaf, stern and flower). Our findings demonstrate that S. baicalensis contains varying amounts of free amino acids between plant tissues and the levels were the highest in the flower.