Preparation method of royal jelly protein active polypeptide complex
A technology of active polypeptide and bee milk protein, applied in food science and other directions, can solve problems such as hidden health risks, increase in garbage, damage to the spleen and stomach, etc., and achieve the effect of promoting skin elasticity, unique flavor and good taste.
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Embodiment 1
[0013] The preparation method of the active polypeptide compound of bee milk protein comprises: the preparation of the active polypeptide of bee milk protein, the preparation of the compound, cooling and inspection, and the specific operation steps are as follows:
[0014] 1) The preparation steps of bee milk protein active polypeptide are: take royal jelly, add saturated sodium chloride solution, let stand for 3h, centrifuge at 5000r / min for 8min, take supernatant, adjust pH value with hydrochloric acid, let stand for 5h, 4000r Centrifuge for 6 min under the condition of / min, take the precipitate, wash the precipitate with hydrochloric acid of pH 4.0, make a solution of the precipitate and 0.34% dilute hydrochloric acid, the solid-liquid ratio is 1:15, put the solution in a water bath (37°C) and Add pepsin, fully enzymatically hydrolyze, adjust the pH value to 6.8, add neutral protease after the water bath is heated to 50°C, react for 3 hours, adjust the temperature of the wa...
Embodiment 2
[0018] The preparation method of the active polypeptide compound of pro-milk protein comprises: preparation of active pro-milk protein polypeptide, preparation of compound, cooling and inspection, and the specific preferred operation steps are as follows:
[0019] 1) The preparation steps of bee milk protein active polypeptide are: take royal jelly, add saturated sodium chloride solution, let stand for 4 hours, centrifuge at 5000r / min for 7min, take supernatant, adjust pH value with hydrochloric acid, let stand for 5h, 6000r Centrifuge for 10 min under the condition of / min, take the precipitate, wash the precipitate with hydrochloric acid of pH 4.2, make a solution of the precipitate with 0.34% dilute hydrochloric acid, the solid-liquid ratio is 1:16, put the solution in a water bath (37°C) and Add pepsin, fully enzymatically hydrolyze, adjust the pH value to 7.0, add neutral protease after the water bath is heated to 50°C, react for 4 hours, adjust the temperature of the wate...
Embodiment 3
[0023] Sensory evaluation of active polypeptide compound of pro-milk protein:
[0024]Ask 10 testers with certain sensory evaluation experience in product quality inspection to perform sensory evaluation on Embodiment 1, Embodiment 2 and the commercially available health beverage control group. The scoring standards are shown in Table 1. Each index adopts a 10-point system, and the full score is 50 points. After calculating the scores of each index, multiply by the weighted value and add up to get the sensory evaluation score. The result of sensory evaluation is: implementation 1 is 48.1, embodiment 2 is 48.8, and the control group is 40.1, thus it can be seen that the sensory evaluation score of the active polypeptide compound of beesmilk protein in embodiment 1 and embodiment 2 is higher than that of the control group, easier to be accepted by consumers.
[0025] Table 1 The sensory evaluation criteria of the active polypeptide compound of pro-milk protein
[0026]
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