苯丙氨酸代谢苯丙氨酸(phenylalanine PA)是人体必需氨基酸,来源于蛋白质食物。在生长发育小儿中约50%用于体内蛋白质的合成,其余主要氧化为酪氨酸,较小部分转变为其它代谢物。另一替代代谢途径为脱氨作用形成同质酸,如苯乙酸、苯丙酮酸、苯 Phenylalanine metabolism Phenylalanine (PA) is an essential amino acid derived from protein foods. About 50% of growth and development in children for the synthesis of protein in the body, the remaining major oxidation to tyrosine, the smaller part of the conversion to other metabolites. Another alternative metabolic pathway for the formation of homo-acid deamination, such as phenylacetate, phenylpyruvate, benzene