LU Ying,DENG Pan,LIU Yong.Optimization of extraction process of Sarcandra glabra by combination of entropy weight method with Box-Behnken response surface method[J].ZHONGGUO YAOFANG,2023,34(09):1071-1075.
LU Ying,DENG Pan,LIU Yong.Optimization of extraction process of Sarcandra glabra by combination of entropy weight method with Box-Behnken response surface method[J].ZHONGGUO YAOFANG,2023,34(09):1071-1075. DOI: 10.6039/j.issn.1001-0408.2023.09.09.
Optimization of extraction process of Sarcandra glabra by combination of entropy weight method with Box-Behnken response surface method
The contents of rosmarinic acid and isofraxidin in
S. glabra
were determined by HPLC; ultrasonic time, ultrasonic temperature, solid-liquid ratio (mL/g) and methanol volume fraction were investigated by single factor test. Based on the results of single factor test, experimental scheme was designed by Box-Behnken response surface method, and the entropy weight method was used to assign the weight of each index and calculate the comprehensive score. Taking the comprehensive score as the evaluation index, the extraction process of
S. glabra
was optimized, and then optimized extraction process was verified.
RESULTS
2
The optimal extraction technology of
S. glabra
included ultrasonic time of 40 min, ultrasonic temperature of 45 ℃, liquid-solid ratio of 50∶1, methanol volume fraction of 70%. The results of 3 times of verification experiment showed that average comprehensive score was 0.988 6, and the RSD was 0.50%. The deviation between the actual value and the predicted value (0.985 1) of each comprehensive score was within ±1%.
CONCLUSIONS
2
The optimized extraction method is stable, feasible and repeatable, which can provide reference for extraction of