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UV-spectrophotometric determination of polysaccharide content in calla fern
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A technology for the content of polysaccharides and polysaccharides in horseshoe fern, which is applied in the measurement of color/spectral properties, etc.
Active Publication Date: 2018-09-21
GUANGXI INST OF CHINESE MEDICINE & PHARMA SCI
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[0003] As a commonly used national medicinal material, calla fern has been successively included in "Chinese Modern Yao Medicine" and "Quality Standards for Zhuang Medicine" (Volume 3), but there are only simple physical and chemical identifications in the standards
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[0023] 2.1 Preparation of horseshoe fern polysaccharide extract
[0024] A: Crush 1 kg of horseshoe fern medicinal materials into coarse powder, add 8 L of 60% ethanol, heat and reflux twice for 2 hours each time, filter, discard the filtrate, collect medicinal residues, and remove fat-soluble components.
[0025] Add 8 L of 0.3mol / L dilute hydrochloric acid to the medicinal residues of B and extract twice by heating and refluxing for 2 hours each time, filter, discard the medicinal residues, collect the filtrate and concentrate to obtain 150 g of paste.
[0026] Add ethanol to the concentrated solution to make the ethanol concentration reach 80%, stand overnight, filter, collect the precipitate, add water to dissolve the precipitate, filter, concentrate the filtrate into paste, and freeze-dry in vacuo to obtain the horseshoe fern polysaccharide extract.
[0027] 2.2 Determination of polysaccharide content in horseshoe fern polysaccharide extract
[0028] The horseshoe fern p...
Embodiment 1
[0042] Referring to the above determination method, but using 0.1% anthrone-sulfuric acidreagent for reaction and measurement, the content of polysaccharide in the polysaccharide extract of horseshoe fern was obtained. The results are shown in Table 3.
[0043] table 3
[0044] Sampling volume (ml)
Embodiment 2
[0046] Referring to the above determination method, but using 0.3% anthrone-sulfuric acidreagent for reaction and measurement, the content of polysaccharide in the polysaccharide extract of Horseshoe fern was obtained. The results are shown in Table 4.
[0047] Table 4
[0048] Sampling volume (ml)
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Abstract
The invention discloses an ultraviolet spectrophotometric method for determining the polysaccharide content in callafern medicinal materials. Using anhydrous glucose as a contrast, the ultraviolet spectrophotometer is used to measure the polysaccharide content in callafernpolysaccharide extract. The invention perfects the quality detection standard of the callafern medicinal material, and lays a foundation for the establishment of the calla fern medicinal material quality standard; moreover, the method has high sensitivity, simple and convenient operation, and accurate results; popularization and application of the present invention can ensure the quality of the calla fern medicinal material, To ensure the safety, effectiveness and stability of its clinical medication.
Description
technical field [0001] The invention relates to the technical field of quality control of the horseshoe fern medicinal material, in particular to an ultraviolet spectrophotometric method for determining the polysaccharide content in the horseshoe fern medicinal material. Background technique [0002] Horseshoe fern, Guanyin lotusplant Fujian rosette fern (Angiopteris fokiensis Hieron.), as a national characteristic medicinal material in Guangxi, belongs to both Zhuang medicine and Yao medicine. It is usually used as a human medicine with rhizomes and is mainly distributed in Jinxiu, Gongcheng, Mashan and other places in Guangxi. It has anti-inflammatory and pain-relieving, heat-clearing and detoxifying, dampness, cooling blood and hemostasis. It is mainly used for enteritis, dysentery, stomach pain, gastric and duodenum. Intestinal ulcers, tuberculosis, hemoptysis, nephritis, edema, functional uterine bleeding, rheumatoid arthritis, lymph node tuberculosis, lymphadenitis, b...
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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/33
CPCG01N21/33
Inventor 张赟赟杨海船李燕婧李嘉姜平川
Owner GUANGXI INST OF CHINESE MEDICINE & PHARMA SCI
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