Method for detecting deer-derived ingredients in glue type traditional Chinese medicines and products thereof
A technology of glue-like traditional Chinese medicine and source components, which is applied in measurement devices, material separation, analysis of materials, etc., can solve the problem of no traceability identification and other problems, and achieve the effect of less damage and high content
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[0029] (1) Preparation of gel sample enzymatic hydrolysis solution
[0030] Take 1.0g of the gel sample to be tested in a 500mL measuring bottle, add a small amount of 1%NH 4 HCO 3 solution, sonicate to dissolve the sample completely, and use 1% NH 4 HCO 3 Dilute the solution (pH 8.0) to the mark, shake well, filter through a microporous membrane, accurately measure 1 mL of the subsequent filtrate plus 100 μL of 2 mg / mL trypsin solution, and enzymatically hydrolyze at a constant temperature of 37 °C for 6 h.
[0031] (2) Preparation of enzymatic hydrolysis solution of synthetic polypeptide control sample
[0032] Weigh a certain amount of synthetic peptide, add 1% NH 4 HCO 3 Solution (pH8.0), shake well, prepare to a concentration of about 0.3μg / mL, filter through a microporous membrane, and set aside.
[0033] 3 Discovery of peptides
[0034] (1) Discovery of ions
[0035] Take 5 μL of the enzymatic hydrolysis solution and put it into the liquid mass spectrometer for ...
Embodiment 1
[0045] 1 Materials and Reagents
[0046] Materials: Pure glue includes donkey-hide gelatin, horsehide glue, yellow gelatin, pigskin glue, tortoise shell glue, and deer antler glue, which are obtained by decocting donkey hide, horse hide, cowhide, pig skin, tortoise shell, and antler respectively.
[0047] Mixed gum samples (donkey-hide gelatin with 5% antler gum, donkey-hide gelatin with 10% antler gum, donkey-hide gelatin with 20% antler gum, and donkey-hide gelatin with 40% antler gum) were made by precisely mixing the above pure gums. (percentage is mass percent)
[0048] Reagents: ammonium bicarbonate (analytical pure), trypsin (sequentially pure, purchased from China Institute for Food and Drug Control), synthetic polypeptide Gly-Glu-Ala-Gly-Pro-Gln-Gly-Pro-Arg.
[0049] 2 detection method
[0050] (1) Preparation of synthetic peptide control sample enzymatic hydrolysis solution
[0051] Get 1.0g pure donkey-hide gelatin sample in 500mL measuring bottle, add a small am...
Embodiment 2
[0058] 1 Materials and Reagents
[0059] Materials: Mixed glue samples are made by adding 5% antler glue to the pure glue sample in Example 1, including donkey-hide gelatin containing 5% antler glue, horsehide glue with 5% antler glue, and yellow gelatin containing 5% antler glue , Pig skin glue with 5% antler glue, tortoise shell glue with 5% antler glue. (percentage is mass fraction)
[0060] Reagents: ammonium bicarbonate (analytical pure), trypsin (sequentially pure, purchased from China Institute for Food and Drug Control), synthetic polypeptide Gly-Glu-Ala-Gly-Pro-Gln-Gly-Pro-Arg.
[0061] 2 detection method
[0062] (1) Preparation of synthetic peptide control sample enzymatic hydrolysis solution
[0063] Get 1.0g sample of pure donkey-hide gelatin to be tested in a 500mL measuring bottle, add a small amount of 1%NH 4 HCO 3 solution, sonicate to dissolve the sample completely, and use 1% NH 4 HCO 3 Dilute the solution (pH 8.0) to the mark, shake well, filter with...
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