基于双指标分析法和聚类分析法的白刺红外指纹图谱比较研究  

Comparative study on the infrared fingerprint of nitraria tangutorum bobr.based on the methods of sequential analysis of dual-indexes and cluster analysis

作　　者：赵薇[1] 陈奕君[2] 孟庆艳[3] 乜广 张玲[3] 李莹[1] 刘圆[4] 

机构地区：[1]西南民族大学药学院,四川成都610041 [2]北京中医药大学中药学院,北京100029 [3]新疆生产建设兵团塔里木盆地生物资源保护利用重点实验室,新疆阿拉尔843300 [4]西南民族大学民族医药研究院,四川成都610041

出　　处：《食品工业科技》2016年第23期286-290,共5页Science and Technology of Food Industry

基　　金："十三五"国家科技支撑计划(2015BAC05B02);四川省科技支撑计划(2014SZ0159);中央高校基本科研业务费专项基金项目(2015NZYQM46)

摘　　要：采用双指标序列分析法和聚类分析法对7种不同白刺属植物的红外指纹图谱进行比较分析,利用共有峰率和变异峰率2个指标,以不同来源样品的红外指纹图谱为标准,计算出所测样品间的共有峰率和变异峰率,并按照共有峰率的大小建立不同的双指标序列分析法,研究各产地白刺的异同。结果表明:不同来源的植物样品中G3与G6的成分最为相似,相似度为57.89;G3与G5次之,相似度为52.63;G1、G7与其他各样品的相似程度最低。红外光谱指纹图谱结合聚类分析或双指标序列法,可以快速、无损地鉴别不同产地的白刺,为区别不同产地不同品种白刺提供一种切实可靠的方法。The method of sequential analysis of dual-indexes and cluster analysis were utilized to investigate the infrared fingerprints of 7 plant species of the genus Nitraria LUsing common peak ratio index and variant peak ratio index, based on IR fingerprint of Nitraria L.from different regions,common peak ratio and variant peak ratio of 7 samples were calculated respectively to set up a new method called dual-index sequence analysis for distinguishing samples from different regions.The result showed that the compositions of G3 and G6 were the most similar, and the similarity was 57.89, in different plant samples.The similarity between G3 and G5 was 52.63,the similarity among G1,G7 and other samples were the lowest.On the whole, FTIR combined with cluster analysis or sequential analysis of dual-indexes provided an effective way to identify the regions of Nitraria tangutorum Bobr. rapidly and simply,For the difference between different regions of different varieties of white provided a practical and reliable method.

关 键 词：白刺 红外指纹图谱 共有峰率 变异峰率 双指标序列法 聚类分析 

分 类 号：TS201.2[轻工技术与工程—食品科学]