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Published in last 1 year |  In last 2 years |  In last 3 years |  All Please wait a minute... For Selected: Download Citations EndNote Reference Manager ProCite BibTeX RefWorks Toggle Thumbnails Select Extraction process of total flavonoids from stigma maydis and Gynostemma pentaphyllum and preparation of the antihypertensive tablets LIU Xia, MA Ze-gang, MA Lin HUBEI AGRICULTURAL SCIENCES    2024, 63 (4): 136-140.   DOI: 10.14088/j.cnki.issn0439-8114.2024.04.025 Abstract （18）      PDF （1651KB）（5）       Knowledge map    Save Taking stigma maydis and Gynostemma pentaphyllum （1∶1） as the extraction raw material and the total flavonoids content as the investigation index, the effect of compound total flavonoids content was investigated by single factors including extraction solvent, ethanol volume fraction, extraction temperature, extraction time, material-liquid ratio and extraction times. Then, the extraction process of total flavonoids was optimized by the orthogonal test. Finally, the optimized total flavonoids were refined by D101 macroporous adsorption resin and prepared into antihypertensive tablets. The results showed that the best extraction process of compound total flavonoids was 50% ethanol volume fraction, the material-liquid ratio was 1∶10, and the extraction time was 3.5 h at 50 ℃. The quality of the prepared tablets （weight difference ±5.1%, fragmentability 0.83%, disintegration time 2.41 min） was in line with the relevant provisions of the Pharmacopoeia of the People’s Republic of China （2020 edition）, and the antihypertensive tablets could reduce the blood pressure of SHR rats. Reference | Related Articles | Metrics Select Optimization of forming process of Zhuang medicine Luoqianyu cataplasm based on AHP-CRITIC method combined with star design XIE Meng-jiao, GUO Yong-xiu, LAI Xin-hong, LI Fang-chan, HUANG Yin, HUANG Ai-ai, WANG Ya-qin, HUANG Xue-ting, JIANG Lin HUBEI AGRICULTURAL SCIENCES    2024, 63 (4): 141-147.   DOI: 10.14088/j.cnki.issn0439-8114.2024.04.026 Abstract （25）      PDF （10885KB）（6）       Knowledge map    Save Taking the initial viscosity, holding viscosity and comprehensive sensory evaluation as indexes, the weight of each index was determined by the AHP-CRITIC mixed weighting method, and the comprehensive score was calculated. The star design-response surface method was used to optimize the best forming process of Zhuang medicine Luoqianyu cataplasm. The results showed that the best blank matrix formulation of Zhuang medicine Luoqianyu cataplasm was NP-700 of 1.6 g, silica gel powder of 1.0 g, dihydroxyaluminum aminoacetate of 0.8 g, glycerol of 12.0 g, carbomer 940 of 0.5 g, CMC-Na of 0.5 g, EDTA-2Na of 26 mg, and deionized water of 10 mL. The preparation method was as follows： NP-700, silica gel powder and dihydroxyaluminum aminoacetate were swelled in glycerol as phase A, EDTA-2Na was dissolved in deionized water, carbomer 940 and CMC-Na were swelled as phase B, phase A was added into phase B to stir evenly, and the resulting blank matrix was mixed evenly with the prescribed cream. The optimized preparation process was stable and feasible, and the actual production was operable, which could be used for the preparation of Zhuang medicine Luoqianyu cataplasm. Reference | Related Articles | Metrics page Page 1 of 124 Total 248 records First page Prev page Next page Last page