中国中药杂志

2019, v.44(23) 5129-5133

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Heracles Ⅱ超快速气相电子鼻对金银花粉末质量的鉴别研究
Identification of honeysuckle powder quality by Heracles Ⅱ ultra-fast gas phase electronic nose

武文奇;毛怡宁;李虹;黄晓欣;刘勇;
WU Wen-qi;MAO Yi-ning;LI Hong;HUANG Xiao-xin;LIU Yong;Beijing University of Chinese Medicine;

摘要(Abstract):

金银花质量问题一直是产业发展中不可忽略的重要因素,开花是导致其有效成分发生一定程度变化的原因之一,若以原药材形式,可简单识别出商品中是否掺入完全开花金银花,但打粉后,失去外观鉴别特征,需从有效成分层面识别,较为困难。因此,该研究采用HeraclesⅡ超快速气相电子鼻对金银花粉末质量进行鉴别,以期寻求一种基于气味的有效鉴别方式。通过HeraclesⅡ超快速气相电子鼻采集不同调配比例金银花粉末气相色谱图,分析后得出,不同调配比例金银花粉末的定性结果基本相同,仅含量存在差异。在所有可能化合物风味中,己醛气味可能是识别金银花粉末质量的关键因素。此外,以色谱图数据为基础,通过PCA,DFA,CQ,实现了基于掺入完全开花金银花比例的粉末质量快速识别及分级,共分为3等,即浓度预测值<3为一等; 3~5为二等;>5为三等。研究所得结果表明,HeraclesⅡ超快速气相电子鼻分析可以作为金银花粉末质量的快速鉴别方法,同时,可为基于开花率的金银花质量分级研究提供参考。
The quality of honeysuckle has always been an important factor in industrial development. Flowering is one of the elements for the variation of the effective components in honeysuckle. We can conveniently recognize whether the commodity is mixed with blossomed honeysuckle in the form of medicinal material. However,it is hard to identify whether the products are mixed with blossomed honeysuckle in the form of powdersince visual identification traits are missing. Therefore,this study aims to seek an effective method of odor-based distinguish for identifying the quality of honeysuckle powder in different ratios by using Heracles Ⅱ ultra-fast gas phase electronic nose.The powdered samples were prepared with flower buds and fully blooming flowers in different proportion. Gas chromatograms of the powder were obtained by HeraclesⅡ ultra-fast gas phase electronic nose. Through analyzing the data of chromatograms,we have concluded that the qualitative results of the prepared powder were almost the same,and there existed differences in the components content. Meanwhile,the hexanal odor appeared to be the critical factor in identifying honeysuckle powder quality among the flavor of all possible compounds. Also,we have applied PCA,DFA and CQ to identify and classify the variety of the powder based on the chromatogram data. Finally,it is realized that the powder was rapidly identified and classified into three grades based on the proportion of flowering honeysuckle. The predicted concentration value for the first class is less than 3,the value of is not less than 3 and less than 5 for the second class,and more than 5 for the third class. In summary,the results obtained by the study suggest that Heracles Ⅱ ultra-fast gas phase electronic nose analysis can be used as a rapid identification method for the quality of honeysuckle powder. At the same time,it can provide a reference for the quality classification of honeysuckle based on flowering degrees.

关键词(KeyWords): 超快速气相电子鼻;金银花粉末质量;鉴别
ultra-fast gas phase electronic nose;honeysuckle powder quality;identification

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作者(Author): 武文奇;毛怡宁;李虹;黄晓欣;刘勇;
WU Wen-qi;MAO Yi-ning;LI Hong;HUANG Xiao-xin;LIU Yong;Beijing University of Chinese Medicine;

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