ABSTRACT
Objective: To optimize the extraction technology and inclusion process of volatile oil for Qingxiangrukang Granules (QG). Methods: Box-Behnken was used to optimize the extraction technology of volatile oil in QG. With yield of inclusion compound and inclusion rate of volatile oil-β-CD as evaluation indexes, and with volatile oil-pure water ratio, β-CD-volatile oil ratio, and inclusion time as investigate factors, the optimal inclusion technology for volatile oil of QG was ensured based on PCA-G1-entropy method and orthogonal design and by using colloid milling. Results: The optimum extraction technology of volatile oil were as follows: extracting time was 6 h, liquid-material ratio was 10, immersion was 0 h. The optimal inclusion technology for volatile oil were as follows: pure water-volatile oil ratio was 1:80, β-CD-volatile oil ratio was 6 g, and the inclusion time was 30 min. Under such condition, there was no significant difference between verification groups of three batches. Conclusion: This optimal extraction technology and inclusion process is stable and workable and can provide experimental basis for industrial production of QG.
ABSTRACT
Objective To determine the optimum extraction and purification technology of Huangqi Baihe Granules (HBG) by using orthogonal design and combination empowerment based on G1-entropy method, so as to provide a reference for the industrial production. Methods With the ethanol extraction amount and paste-forming rate of calycosin7-O-β-D-glucopyranoside, hesperidin, crude polysaccharide as evaluation index, and with the extraction times, extraction time and the water adding amount as investigate factors, then the combination empowerment method based on G1-entropy method and orthogonal design were used to optimize the extraction technology of HBG. The same combined methods were used to optimize the purification technology of HBG with retention rate and removal rate of impurity of ethanol extract of calycosin7-O-β-D-glucopyranoside, hesperidin and crude polysaccharide, as evaluation index, and with the membrane pore diameter, operating pressure and filtration temperature of multi-channel tubular ceramic ultrafiltration membrane as investigate factors. Results The test results showed that the optimum extraction technology was as follows: Extracted 2 times with 20 times the amount of water and each for 75 min. The optimum ultrafiltration technology was as follows: Multi-channel tubular inorganic ceramic membrane at 50 nm, operating pressure at 0.10 MPa, filtration temperature at 45 ℃. Under such condition, there was no significant difference between verification groups of three batches. Conclusion The optimized extraction and purification process is stable and feasible by verification, which can provide experimental basis for industrial production of HBG.
ABSTRACT
Objective To optimize the vacuum drying process of extract paste of Huangqi Baihe Granules (HBG) and evaluate the physical quality of powder. Methods With drying temperature, vacuum degree, and material thickness as independent variables, the comprehensive evaluating indexes of content of calycosin 7-O-β-D-glucopyranoside, hesperidin, crude polysaccharide, ethanol extraction amount, and drying rate as response values, Box-Behnken design-response surface methodology and G1-entropy method were used to optimize the vacuum drying process. The similarity of fingerprints between extract powder dried by the optimized technology and extract paste was compared. Additionally, the properties of powder were evaluated comprehensively with nine physical indicators, including relative homogeneity index, bulk density, tap density, interparticle porosity, compressibility, Hausner ratio, angle of repose, moisture content, and hygroscopicity. The physical fingerprint of powder were established to evaluate the quality consistency of different batches of extract powder. Results The optimal drying parameter was as follows: the drying temperature was 68 ℃, the vacuum degree was 0.07 MPa, the material thickness was 6 mm. Three verification experiments were carried out under these conditions and the average comprehensive evaluating indexes of vacuum drying was 91.05, which was close to the model prediction 91.87, and the relative error was 0.89%. Compared with the extract paste, the similarity of fingerprint of extract powder were more than 0.91. The similarity of chemical and physical fingerprint of three batches of extract powder were higher than 0.99. Conclusion The optimized vacuum drying technology of extract paste of HBG is stable and feasible.