中药辅料炼蜜物理性状参数表征及参数间相关关系分析

Characterization of Physical Property Parameters and Correlations Analysis Between Parameters of Refined Honey as a Chinese Medicine Excipient

目的：表征中药辅料炼蜜的水分含量、相对密度和黏度3个物理性状参数,分析各参数间的相互关系,优选某一参数表征炼蜜的规格.方法：采用常压加热法和减压加热法制备炼蜜样品,利用阿贝折光计法测定水分含量,比重瓶法测定相对密度,优选旋转流变仪测定黏度的方法,通过回归分析考察2种制备工艺得到的不同规格炼蜜样品中水分含量、相对密度、黏度间相互关系.结果：常压（减压）炼蜜样品中水分、相对密度和黏度分别为15.05％ ～ 21.26％（13.72％ ～ 21.32％）,1.401 7～1.447 8（1.403 3～1.4564）,1.89～51.28（1.93～86.01） Pa·s.不同规格炼蜜样品中水分含量、相对密度和黏度的对数间均具有良好的线性相关关系（R2均＞0.98）,不同工艺制得炼蜜样品的物理性状参数间相关关系一致.结论：随水分含量降低,炼蜜相对密度线性增加,黏度呈指数性增加,3个参数间具有良好的相关性,可直接采用含水量来表征炼蜜物理性状.

Objective：To characterize moisture content,relative density and viscosity of refined honey,find correlations between parameters and select one of these three parameters to define different specifications of refined honey.Method：Samples were refined respectively by atmospheric heating and vacuum heating method,moisture content was determined by Abbe refractometer,relative density was measured by pycnometer,viscosity was determined by rotating rheometer,correlations between these three parameters were investigated by regression analysis.Result：Moisture content,relative density and viscosity in atmospheric （vacuum） refined honey samples were 15.05％-21.26％ （13.72％-21.32％）,1.401 7-1.447 8 （1.403 3-1.456 4）,1.89-51.28 （1.93-86.01） Pa·s.These three parameters all closely correlated with each other with R2 ＞ 0.98,correlations between any two parameters of samples by different preparations were consistent.Conclusion：As moisture content was reduced,relative density increased linearly,viscosity increased exponentially,and their strong correlations applied to all samples by both preparations.Moisture content could be directly selected to characterize specifications of refined honey.