基于质量源于设计（QbD）理念的延胡索醇提工艺质量控制研究

目的运用质量源于设计(QbD)理念,提升延胡索醇提工艺的质量控制水平,以满足可达灵片生产的提取要求。方法以溶剂倍数、提取时间、浸泡时间为关键工艺参数;以延胡索提取液中干膏率、脱氢延胡索碱含量、脱氢延胡索碱转移率为关键质量属性;采用响应面法建立关键工艺参数和关键质量属性间的数学模型,建立多个指标重叠的设计空间,选取较优操作空间,最后进行工艺验证。结果延胡索醇提工艺操作空间为浸泡时间14～24 h;第1次溶剂倍数3.0～4.0倍,第2、3次溶剂倍数1.5～2.0倍;提取时间1.5～2.5 h。该操作空间下延胡索提取物干膏率为6%～8%,脱氢延胡索碱质量分数大于2.8%,且转移率不低于85%。结论 QbD理念有助于延胡索醇提工艺的提升,获得可靠且适合可达灵片生产的提取操作空间。

Quality control of ethanol extraction process of Corydalis Rhizoma based on quality by design (QbD)

Objective To improve the quality control level of ethanol extraction process of Corydalis Rhizoma (CR) by using quality by design (QbD), so as to meet the extraction requirements of Kedaling Tablets. Methods The critical process parameters were solvent multiple, extraction time and soaking time, and the critical quality attributes were dry extract rate, content and transfer rate of dehydrocorydaline. The response surface methodology was used to establish the mathematical model between the critical process parameters and the critical quality attributes. The overlapping design space of multiple index design spaces was established to select the optimal operation space, where the process verification was carried out. Results The operating space parameters of ethanol extraction of CR was 14-24 h of the immersion time, 3.0-4.0 times of the first time solvent multiple, 1.5-2.0 times of the second and third time solvent multiple, and 1.5-2.5 h of the extraction time. Under this operating space, the extraction yield of CR was ranged from 6%-8%, the content of dehydrocorydaline was more than 2.8%, and the transfer rate was not less than 85%. Conclusion The concept of QbD is helpful to improve the ethanol extraction process of CR, and to obtain a reliable and suitable extraction operation space for the production of Kedaling Tablets.