A kind of honeysuckle control extract and preparation method thereof
A technology of honeysuckle and extract is applied in the field of Chinese medicine extract and Chinese medicine quality control, which can solve the problems of high detection cost and incomplete detection standards, and achieve the effects of low separation cost, high detection efficiency and accurate results.
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Embodiment 1
[0037] (1) Take 10.5g of honeysuckle, add water to decoct three times, add 100ml water to decoct for 1 hour for the first and second time, add 50ml water to decoct for 1 hour for the third time, filter the decoction, combine the filtrates, concentrate under reduced pressure to 70 The relative density at ℃ is 1.15, about 15ml; then add 20ml of ethanol, stir evenly, let it stand for 12 hours, take the supernatant to recover ethanol under reduced pressure, and dry to obtain 2.1g of crude extract of honeysuckle. The total content of the six target components in the crude extract was about 8.9% as determined by the HPLC external standard method. The liquid chromatogram of the crude extract is shown in the appendix figure 1 , the contents of the 6 caffeoylquinic acid components are shown in the following table 1:
[0038] Table 1 Contents of 6 target components in the crude extract of honeysuckle
[0039]
[0040] (2) Take the crude extract of honeysuckle prepared in step (1), ...
Embodiment 2
[0049] (1) Take 350g of honeysuckle, add water to decoct three times, add 3L water to decoct for 1 hour for the first and second time, add 2L water for 1 hour to decoct for the third time, filter the decoction, combine the filtrates, and concentrate under reduced pressure to 70°C The relative density is 1.14, about 500ml; then add about 700ml of ethanol, stir evenly, let it stand for 12 hours, take the supernatant to recover ethanol under reduced pressure, and dry to obtain 81g of honeysuckle crude extract.
[0050] The total content of the six target components in the crude extract was about 8.4% as determined by the HPLC external standard method. The liquid chromatogram of the crude extract is shown in the appendix image 3 , the contents of the 6 caffeoylquinic acid components are shown in the following table 3:
[0051] Table 3 Contents of 6 target components in the crude extract of honeysuckle
[0052]
[0053] (2) Take the crude extract obtained in step (1), add 400...
Embodiment 3
[0060] Take Yinhuang tablets with batch number 090901h from a pharmaceutical manufacturer in Hainan as a sample, and prepare the test solution according to the method specified in the second supplement of "Chinese Pharmacopoeia" 2010 edition Yinhuang tablets [Assay]. The control solution was prepared respectively with the honeysuckle control extract obtained in Examples 1 and 2 and a single reference substance (the source of the reference substance: chlorogenic acid, provided by the China Institute for Food and Drug Control, batch number 110753-201314, neochlorogenic acid, cryptochlorogenic Acid, isochlorogenic acid A, isochlorogenic acid B, and isochlorogenic acid C were purchased from Chengdu Pusi Biotechnology Co., Ltd., the batch numbers are ps100603-07, ps100512-06, ps08103101, ps08103102, ps100623-03.) , the content of 6 caffeoylquinic acid components in the sample was determined by external standard method, the results are shown in the following table 5:
[0061] Table ...
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