Method for increasing yield of major proteins 2 and 3 in royal jelly by liquid chromatography purification
A liquid chromatography and royal jelly technology is applied in the field of improving the yield of royal jelly main proteins 2 and 3 in liquid chromatography purification, can solve problems such as low yield, and achieve the effects of high yield, increased yield and good repeatability
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[0030] A method for increasing the yield of royal jellybumin 2 and 3 in liquid chromatography purification, comprising:
[0031] a. Dissolve royal jelly in extraction buffer (500mM NaCl, 8mM NaH 2 PO 4 , 42mM Na 2 HPO 4 , 2 mM Dithiothreitol, 0.05% NaN 3 (0.05g / 100mL), pH 7.4), shake overnight, so that the royal jelly protein is completely dissolved in the buffer solution;
[0032] b. Take the mixed solution prepared in step a, centrifuge at 4°C and 20000g for 20 minutes, and then take the supernatant;
[0033] c. Add 3.9M saturated ammonium sulfate to the royal jelly sample prepared in step b, the final concentrations of ammonium sulfate are 30%, 40%, and 50%, respectively, and incubate at 4°C for 1 hour or overnight;
[0034] d. Take the solution incubated in step c and centrifuge at 4°C and 75000g for 30 minutes, and take the supernatant. The final concentration of ammonium sulfate was 30%, 40%, and 50% of the samples, and the supernatant solution was subjected to SDS...
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