多指标综合评价方法优选木香纸煨工艺

Optimization of Paper-roasted Technology of Aucklandiae Radix by a Multi-index Comprehensive Evaluation Method

目的:优化木香纸煨工艺参数。方法:采用正交设计试验,以纸煨时间、煨制温度、平铺层数为考察因素,采用HPLC法,以甲醇-水(65∶35)为流动相,测定指标性成分木香烃内酯和去氢木香内酯含量;以番泻叶为致泻剂复制小鼠腹泻模型,各组小鼠灌胃样品水煎剂10 g·kg^(-1),测定药理指标腹泻指数,将成分含量和腹泻指数加权评分,确定工艺参数。结果:方差分析结果显示:纸煨木香时,草纸平铺层数和纸煨温度对木香烃内酯、去氢木香内酯的含量和腹泻指数有显著影响。经综合分析,确定纸煨木香最佳工艺为:将净木香生品饮片,用一层草纸,一层木香片,间隔平铺5层,置120℃烘干箱内,烘煨约2 h,至木香中所含挥发油渗至纸上,焦香,木香呈深棕色时取出。结论:该纸煨工艺稳定可行,可为其质量标准制定奠定基础,有助于扩大其临床应用。

Objective： To optimize the paper-wasted technology of Aucklandiae Radix. Methods： With methanol-water （65： 35） as the mobile phase, the contents of costunolide and dehydrocostuslactone were determined by HPLC. Senna was used to make diarrhea model in mice, and the sample decoction was administered for the mice by i. g at the dose of 10 g·kg^-1 and the diarrhea index was determined. The paper-roasted technology of Aucklandiae Radix was optimized by L9 （34 ） orthogonal design taking the contents of cost- unolide and dehydrocostuslactone, and the diarrhea index in mice as the indices with the paper-roasted time, the paper-roasted temper- ature and the layer number as the influencing factors. Results： The variance analysis results show that the layer number and the paper -roasted temperature has the significant impact on the contents of costunolide and dehydrocostuslactone and the diarrhea index in mice. The best paper-roasted technology of Aucklandiae Radix was as follows ： a layer of paper was covered by 4mm Aucklandiae Radix and repeated the same operation 5 times, and put them in drying baker at 120℃ for about 2 hours. After the essential oil of Aucklandiae Radix permeated on the paper with burnt flavor and dark brown in color, Aucklandiae Radix could be taken out. Conclusion： The optimum paper-roasted technology of Aucklandiae Radix is reasonable and feasible, which can provide reference for the establishment of the quality standard for paper-roasted Aucklandiae Radix pieces and the expanding of the clinical application.