Characterization of elemental distribution and amino acid content in Liriodendron tulipifera

The amino acid and mineral composition of Liriodendron tulipifera (tulip tree) was investigated. As a result of studying the amino acid composition of the leaves and flowers of the tulip tree using the HPLC method, all protein-forming amino acids were identified. Among the amino acids, a significant amount of proline was found, and its content relative to the total amount of amino acids in the leaves and flowers is 44.35% and 47.98%, respectively. It can be seen that the amount of arginine and methionine is relatively higher in the leaves of the tulip tree, and histidine and cysteine are relatively higher in its flowers. The macro and microelement composition of the leaves, stems, and flowers of the tulip tree was studied using the ICP-MS method, and the amount of 59 elements was determined. While the amount of calcium decreases from the leaves to the flowers through the stem, the amount of other macroelements decreases from the leaves to the stem and increases in the flowers. Aluminum, iron, boron, and strontium have a higher content compared to other microelements. Iron was found in the highest amount in the leaves, while aluminum was found in the highest amount in the stems and flowers.

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