Method for preparing bone peptide extract and products thereby
An extract and bone peptide technology, applied in the field of biopharmaceuticals, can solve the problems of ineffective removal of allergic reactions, complicated process routes, and impact on product quality, and achieve the effects of ensuring clinical safety, reducing volume, and reducing operational difficulty
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[0025] Example 1
[0026] 1. Extraction: Put the crushed pork limb bones into the extraction tank, add purified water twice the weight of the feed, and extract by hot pressing, the pressure is controlled at 0.11-0.12mPa, and the hot pressing extracts twice, each time for 1 hour;
[0027] 2. Concentration: The medicinal solution obtained after hot-pressure extraction is concentrated, and the filtrate is first concentrated to 50%±2% of the weight of the raw material;
[0028] 3. Acid precipitation: Combine the concentrated solution again, remove the upper layer of grease, continue to concentrate to 60% of the weight of the raw material, and cool to room temperature; adjust the pH value to with 1:1 hydrochloric acid (prepared by volume ratio of purified water and 36-38% hydrochloric acid) 1.5, keep at 100℃ for 45 minutes, cool to room temperature, stand at 0-5℃ for more than 12h;
[0029] 4. Alkali precipitation: filter the acid precipitate, adjust the pH of the filtrate to 8.5 with ...
Example Embodiment
[0032] Example 2
[0033] 1. Extraction: Put the crushed pork limb bones into the extraction tank, add purified water twice the weight of the feed, and extract by hot pressing, the pressure is controlled at 0.11-0.12mPa, and the hot pressing extracts twice, each time for 1 hour;
[0034] 2. Concentration: The medicinal solution obtained after hot-pressure extraction is concentrated, and the filtrate is first concentrated to 50%±2% of the weight of the raw material;
[0035] 3. Acid precipitation: then combine the concentrated solution, remove the upper layer of oil, continue to concentrate to 70% of the weight of the raw material, cool to room temperature; adjust the pH value to with 1:1 hydrochloric acid (prepared by volume ratio of purified water and 36-38% hydrochloric acid) 3.0, keep at 100℃ for 45 minutes, cool to room temperature, stand at 0-5℃ for more than 12h;
[0036] 4. Alkali precipitation: filter the acid precipitation solution, adjust the pH value of the filtrate to ...
Example Embodiment
[0039] Example 3
[0040] 1. Extraction: Put the crushed pork limb bones into the extraction tank, add purified water 3 times the weight of the feed, hot-press extraction, pressure control at 0.11-0.12mPa, hot-press extraction twice, 1 hour each time;
[0041] 2. Concentration: The medicinal solution obtained after hot-press extraction is concentrated, and the filtrate is first concentrated to 50%±2% of the weight of the raw material;
[0042] 3. Acid precipitation: Combine the concentrated solution again, remove the upper layer of grease, continue to concentrate to 65% of the weight of the raw material, and cool to room temperature; adjust the pH value to with 1:1 hydrochloric acid (prepared with purified water and 36-38% hydrochloric acid by volume) 2.0, keep at 100℃ for 60 minutes, cool to room temperature, stand at 0-5℃ for more than 12h;
[0043] 4. Alkali precipitation: filter the acid precipitate, adjust the pH of the filtrate to 9.0 with 20% sodium hydroxide, keep it at 10...
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