答:治疗用、营养用的复方氨基酸注射液均用多种氨基酸的L型结晶体制得,为何唯独甘氨酸没有L型呢? 氨基酸是含有羧基和氨基功能基团的化合物,由于氨基在烃基上的取代位置不同,而分为α—、β—、γ—等氨基酸。由蛋白质水解后得到的20余种氨基酸 A: Therapeutic and nutritional amino acids injection are used in a variety of amino acid L-type crystal system, why not only L-glycine is not it? Amino acids are carboxyl and amino functional groups of the compounds, the amino on the hydrocarbon group The substitution position is different, and is divided into α-, β-, γ- and other amino acids. More than 20 amino acids from protein hydrolysis