Wang Jiabo, Zhang Xueru, Chu Xiaohui, Huang Mingjin, Jin Cheng, Yan Dan, Xiao Xiaohe, Liu Tasi
China Military Institute of Chinese Materia Medica, 302 Military Hospital, Beijing 100039, China.
Zhongguo Zhong Yao Za Zhi. 2010 Oct;35(20):2657-61.
In this study the reliability and scientificity of organoleptic evaluation for the commercial specification of Chinese medicinal materials (CMM) was investigated with Delphi method, using rhubarb as an example. The consensus panel of panelists being expert in organoleptic evaluation for CMM was cogitatively selected, with high average authority index of 0.81. The average individual repeatability of selected panelists was 85%, while the group repeatability was above 70%. It was found that the career time of the expert had significant influence on the evaluation result (P < 0.05), which suggested that practice makes repeatability. Some panelists of different career type and education background concluded different results, but no statistical significance was found. Furthermore, four predominant organoleptic parameters, shape, color, texture and section characteristics, were selected based on statistics and panelists' discussion to judge the commercial specification of rhubarb. In conclusion, we firstly demonstrated the organoleptic evaluation is an objective and repeatable approach to judge the commercial specification of CMM; and we recommend Delphi method to do validation and standardization for the conventional experiences of traditional Chinese medicine.
本研究以大黄为例，采用德尔菲法对中药材商业规格的感官评价的可靠性和科学性进行了研究。慎重挑选了在中药材感官评价方面的专家组成共识小组，平均权威系数高达0.81。所选小组成员的平均个人重复性为85%，而小组重复性高于70%。结果发现，专家的从业年限对评价结果有显著影响（P<0.05），这表明实践产生重复性。不同职业类型和教育背景的一些小组成员得出了不同的结果，但未发现统计学意义。此外，基于统计和小组成员的讨论，选择了四个主要的感官参数，即形状、颜色、质地和断面特征，以判断大黄的商业规格。总之，我们首次证明了感官评价是判断中药材商业规格的一种客观且可重复的方法；并且我们推荐使用德尔菲法对传统中药的传统经验进行验证和标准化。
