Method for determining content of polysaccharide in cassia twig and poria cocos capsule
A technique of Poria cocos and a determination method, which are applied in the preparation of samples for testing, analysis of materials by observing the influence on chemical indicators, and analysis by chemical reaction of materials, etc., can solve the problem of complex composition of Poria cocos Less research on polysaccharide components, mutual interference of matrix or other effective components in the detection process, etc., to achieve the effect of good reproducibility, perfect quality control and strong specificity
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Embodiment 1
[0062] Example 1 Establishment of a method for the determination of polysaccharide content in Guizhi Fuling Capsules
[0063] The present invention utilizes the anthrone-sulfuric acid method to measure the content of polysaccharides. In this section, the main factors affecting the color reaction result are selected for investigation, including: sulfuric acid concentration in the color developer, maximum absorption wavelength, water bath heating color development time and color development time After the stability of the solution, the optimal color development conditions were finally determined.
[0064] 1 Experimental materials and instruments
[0065] 1.1 Reagents and reagents
[0066] Guizhi Fuling Capsules (Jiangsu Kangyuan Pharmaceutical Co., Ltd., batch number 171001); Anhydrous glucose (China Institute for Food and Drug Control, batch number 110833-201707, purity ≥99.9%); Anthrone (AR, Sinopharm Chemical Reagent Co., Ltd. Company, batch number: 20180815); sodium hydrox...
Embodiment 2
[0110] Embodiment 2 Determination of water-soluble polysaccharide content in Guizhi Fuling Capsules
[0111] 1 Experimental materials and instruments
[0112] 1.1 Reagents and reagents
[0113] Guizhi Fuling Capsules (Jiangsu Kangyuan Pharmaceutical Co., Ltd., batch number 171001, 180901, 180902, 181001); Anhydrous glucose (China Institute for Food and Drug Control, batch number 110833-201707, purity ≥ 99.9%); Anthrone (AR , Sinopharm Group Chemical Reagent Co., Ltd., batch number: 20180815); concentrated sulfuric acid (AR, Nanjing Chemical Reagent Co., Ltd., batch number: 190128026J); anhydrous ethanol (AR, Nanjing Chemical Reagent Co., Ltd., batch number: 190214148k); water is Ultrapure water (made in laboratory).
[0114] 1.2 Experimental instruments
[0115] UV-2401PC UV-Vis Spectrophotometer (Shimadzu Corporation, Japan); KH-500DE CNC Ultrasonic Cleaner (Kunshan Hechuang Ultrasonic Instrument Co., Ltd.); BY-320A Desktop Centrifuge (Beijing Baiyang Medical Instrument Co...
Embodiment 3
[0215] Embodiment 3 Determination of alkali-soluble polysaccharide content in Guizhi Fuling Capsules
[0216] The residue after extraction by the preparation of the water-soluble polysaccharide test solution in the previous step still contains a large amount of polysaccharides, but it may be due to the strong intermolecular hydrogen bonding force in its structure or a part of acidic polysaccharides and relatively large molecular weight. Polysaccharides, resulting in poor solubility in pure water, only measuring water-soluble polysaccharides can not truly reflect the actual situation of the polysaccharides in Guizhi Fuling capsules. Moreover, previous experiments found that the direct measurement of the content of alkali-soluble polysaccharides was disturbed by water-soluble polysaccharides, and the experimental results were not stable enough. Therefore, further investigation is needed to improve the quality control standard of Guizhi Fuling Capsules. Consider pre-treatment wi...
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