太空育种中药材防风的FTIR分析与表征

采用傅里叶变换红外光谱法（FTIR）对第四代太空防风与地面组防风和对照品防风进行了对比分析。三种防风主要吸收峰的峰形峰位相近，说明太空防风的主要化学成分和基本结构并未发生明显变化, 但1 640 cm-1处酮的CO吸收峰明显增强，表明色原酮类含量明显增加；2 927和2 856 cm-1处亚甲基的CH吸收峰和1 054 cm-1处C—O吸收峰明显增强，表 明色原酮苷类、多糖类含量明显增加；1 743 cm-1处内酯的CO吸收峰强于地面组，低于对照品，说明香豆素类含量较地面组增加，少于对照品。整体来看，太空防风成分得到优化，其有效 成分含量明显提升。

Study of the Saposhnikovia Divaricata with Space Mutagenesis by Fourier Transform Infrared Spectroscopy

The outer space Saposhnikovia divaricata of the fourth generation was studied and compared with the ground group and comparison group for the first time. The intensity of carbonyl absorption peak at 1640 cm(-1) is stronger than the other two, indicating that chromone content was enhanced obviously. The peaks at 2927 and 2856 cm(-1) were assigned to --CH2-- groups, the peak at 1050 cm(-1) was due to the C-O groups, and the intensities at 2927, 2856 and 1050 cm(-1) were stronger than other samples, indicating that polysaccharide and glycoside contents were enhanced obviously. The intensity of lactone absorption peak at 1743 cm(-1) was stronger than the ground group and weaker than the comparison, indicating that coumarin content was higher than ground group and lower than the comparison. The major components and the structures remained intact, and the effective component contents were enhanced in the outer space Saposhnikovia divaricata. Using FTIR can analyse and characterize the intrinsic quality of the outer space medicinal materials.