第4代太空板蓝根的FTIR分析研究  

Research on the Fourth Generation of Radix Isatidis by FTIR

作　　者：朱艳英[1] 关颖[1] 王立鹏[1] 郭西华[1] 王志宙[1] 

机构地区：[1]燕山大学理学院,河北秦皇岛066004

出　　处：《光谱学与光谱分析》2010年第2期345-347,共3页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(50875232)资助

摘　　要：从整体上测定我国首次选育的第4代航天育种板蓝根和地面组板蓝根的FTIR谱,对主要组分进行对比分析,为深入研究其内在品质的变化积累数据,探索评价航天诱变育种板蓝根质量的方法。结果表明太空组板蓝根中主要吸收峰的强度在波数1 047,1 630以及1 412 cm-1处吸收比地面组均有不同的增强,提示太空板蓝根中多糖类、甾体、三萜类及黄酮类化合物成分含量有不同程度的增加,尤其是具有抗病毒功效的多糖类含量明显增加。而在波数1 745 cm-1处太空组板蓝根吸收峰强度比地面组板蓝根减弱,表明苷类和有机酸有所减少。由此可得出结论:太空组板蓝根的多种活性成分含量均有提高,航天诱变育种可以选育出多种活性成分含量增加的板蓝根新品种。FTIR spectra of fourth-generation space bred radix isatidis and FTIR spectra of radix isatidis in a ground group were determined on the whole. Comparative analysis was conducted on main constituents （components） to accumulate data for corn prehensively understanding and thoroughly studying the inherent property, and to explore a method of evaluating the quality of space bred radix isatidis. The results showed that slight difference existed in the positions and shapes of the absorption peaks in FTIR spectra of samples between the two groups. The intensities of main absorption peaks of radix isatidis in the space group were strengthened to various degrees compared with those in the ground group. The absorption peaks were markedly enhanced at wave numbers of 1 047, 1 630 and 1 412 cm ~, indicating that the contents of polysaccharides, sterides, triterpenes and fla- vanoids, particularly polysaccharides with anti-viral efficacy, increased to different extents. The absorption peak intensity of space radix isatidis at the wave number of 1 745 em i was weakened compared with that of radix isatidis in the ground group, suggesting the reduction of glycosides and organic acids. It is concluded that the contents of a plurality of active components of radix isatidis in the space group are elevated. New radix isatidis varieties with high contents of diverse active components can be harvested by spaceflight mutation breeding.

关 键 词：航天诱变育种 板蓝根 傅里叶变换红外光谱法 

分 类 号：O657.3[理学—分析化学]