Fermented cordyceps taishanensis powder, preparation sterols HPLC fingerprint spectrum and building method thereof
A technology of fingerprinting and bacterial powder sterols, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems such as the difficulty in achieving effective control of the quality of fermented Cordyceps powder and its preparations, and the lack of a quality evaluation system
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Embodiment 1
[0093] Example 1. Construction method of sterol HPLC fingerprint of Jinshuibao tablet and its fingerprint
[0094] (1) Preparation of reference solution
[0095] Accurately weigh appropriate amounts of ergosterol, stigmasterol, β-sitosterol, and carotinoside, put them in the same 10 mL volumetric flask, add methanol to ultrasonically dissolve, and dilute to the mark to obtain the reference solution.
[0096] (2) Preparation of test solution
[0097] Weigh 1.5g each of 10 batches of Jinshuibao tablets (batch numbers are 160401, 160501, 160502, 160601, 160701, 160702, 160703, 161202, 161203, 161204), grind them into fine powder, add 10ml of methanol and extract for 60 minutes by ultrasonic, take it out and cool to room temperature After centrifugation at 8000r / min for 10min, take the supernatant through a 0.22μm microporous membrane, dilute the filtrate to 10ml with methanol, take an appropriate amount of the extract after constant volume, and add potassium hydroxide with a concentratio...
Embodiment 2
[0108] Construction method of HPLC fingerprint of sterols in Jinshuibao capsule and its fingerprint
[0109] (1) Preparation of reference solution
[0110] Accurately weigh appropriate amounts of ergosterol, stigmasterol, β-sitosterol, and carotinoside, put them in the same 10 mL volumetric flask, add methanol to ultrasonically dissolve, and dilute to the mark to obtain the reference solution.
[0111] (2) Preparation of test solution
[0112] Weigh 1.5g of Jinshuibao capsules for 10 times (batch numbers are 16010005, 16070345, 16080393, 16110701, 16090394, 16030133, 16050229, 16040185, 16020075, 16050347), add 10ml of methanol, and extract for 60min. After cooling to room temperature, centrifuge at 8000r / min. 10min, take the supernatant and pass it through a 0.22μm microporous filter membrane, dilute the filtrate to 10ml with methanol, take an appropriate amount of the extract after the constant volume, add a potassium hydroxide-methanol solution with a concentration of 0.4mol / L and ...
Embodiment 3
[0123] The method for constructing the fingerprint of the fermented cordyceps powder sterol of the present invention is optimized and finally determined after a large number of experiments. The preferable experiments are as follows:
[0124] 1. Optimization of chromatographic conditions
[0125] (1) Selection of elution system
[0126] Except for the elution system conditions, the other basic steps are the same as those of the test product for chromatographic detection. In the experiment, the methanol-water, acetonitrile-water, methanol-0.1% phosphoric acid water, acetonitrile-0.1% phosphoric acid water elution system were selected for research. The results show that the response of each component of the methanol-0.1% phosphoric acid water elution system is relatively small, and the resolution is poor, while the sterol components of the acetonitrile-water and acetonitrile-0.1% phosphoric acid water elution system do not peak in the corresponding time, so choose Methanol-water is us...
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