本文报道粉末状结晶天花粉蛋白的拉曼光谱。酰胺Ⅰ和酰胺Ⅲ的振动谱带在1680和1250 cm~(-1)。骨架C_α—C—N的振动谱带在965 cm~(-1)。苯丙氨酸残基的特征谱带在1010和1620 cm~(-1)。酪氨酸残基的特征谱带在845和862 cm~(-1)。色氨酸残基的特征谱带在765 cm~(-1)。酰胺Ⅰ和Ⅲ的谱带中,B折叠和无序结构的特征较为明显。表征无序结构的965 cm~(-1)谱带很弱。 This article reports Raman spectra of powdered crystalline trichosanthin. The vibrational bands of amide I and amide III are at 1680 and 1250 cm -1. The vibrational band of the framework C_α-C-N is at 965 cm -1. Phenylalanine residues have characteristic bands at 1010 and 1620 cm -1. Tyrosine residues have characteristic bands at 845 and 862 cm -1. The characteristic bands of tryptophan residues at 765 cm -1. In the bands of amides I and III, the features of the B-folded and disordered structures are evident. The 965 cm -1 band that characterizes the disordered structure is weak.