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目的:考察中药材感官经验评价方法的可靠性和科学性。方法:以大黄药材为例,采用2次Delphi法评价,检验感官经验评价方法在专家个人及专家群体的一致性和重复性,分析专家的从业时间、从业性质、受教育背景对其评审结果的影响;通过统计分析确定专家评价大黄药材商品规格的主要感官评价指标。结果:本次Delphi法评审专家权威程度系数和专家个人的重现率均较高,平均为0.81和85%;专家群体的重现率大于70%。其中专家的从业时间长短对其评审结果有重要影响(P<0.05),即专家从业时间越长,实践经验越丰富,评审结果的重现性和可靠性越好;不同从业性质和受教育背景专家的重现性存在一定差异,但没有统计学意义。外观形状、颜色、质地、断面特征4个感官指标是专家评判大黄药材规格的主要因素。结论:本研究实验证实中药材商品规格感官评价经验具有客观性和可重现性;Delphi法可作为中医药经验科学继承与整理的有效手段之一。
Objective: To investigate the reliability and scientificness of the sensory experience evaluation method of Chinese herbal medicines. Methods: Rhubarb herbs were taken as examples. The Delphi method was used to evaluate the consistency and repeatability of the sensory experience evaluation method in the expert individuals and expert groups. The analysis of the experts’ employment time, the nature of the practitioners, the education background of the assessment results Influence; Through the statistical analysis to determine the expert evaluation Rhubarb medicinal product specifications of the main sensory evaluation. Results: The authoritative degree of Delphi experts and individual experts’ recurrence rate were high, with an average of 0.81 and 85% respectively. The recurrence rate of expert groups was more than 70%. Among them, the working hours of the experts have an important influence on the assessment results (P <0.05), that is, the longer the practitioners’ working time and the more practical experience, the better the reproducibility and reliability of the assessment results; the different types of practitioners and the educational background Reproducibility experts there are some differences, but not statistically significant. Appearance and shape, color, texture, cross-sectional features of the four senses is the expert assessment of rhubarb herbs specifications of the main factors. Conclusion: This study confirms that the experience of sensory evaluation of Chinese herbal medicines is objectivity and reproducibility. The Delphi method can be used as an effective means to inherit and organize the experience of Chinese medicine.