The technology of removing blood water from slaughtering and dividing fresh bones by vacuum negative pressure method

Abstract

The invention discloses a process for removing blood water from slaughtered and segmented fresh bones by virtue of a vacuum negative pressure method, and relates to a process for removing blood water. According to the vacuum negative pressure method, the blood water in the fresh bones is removed under a condition of the conversion between the positive pressure of an extraction tank and the negative pressure of a buffering tank. The process specifically comprises the following steps of: connecting the buffering tank between the extraction tank and a vacuum pump, and under the condition of the positive pressure of the extraction tank and the vacuum negative pressure of the buffering tank, when the instrument of the extraction tank displays that the temperature is 20-60 DEG C, opening a valve between the extraction tank and the buffering tank, and pumping the melted blood water in the buffering tank; and repeatedly raising and relieving pressure in this way, so as to drain the blood water contained in the bones with the pressure before blood water is solidified at a temperature below 60 DEG C. According to the method provided by the invention, the blood water contained in the bones is removed firstly, then high-concentration collagen protein is extracted, and energy is saved during later-stage drying; and the colour is white and no fishy smell exists because the blood water is removed.

Description

technical field [0001] The invention relates to a process for removing blood and water, in particular to a process for removing blood and water in butchered and segmented fresh bones by using a vacuum negative pressure method. Background technique [0002] In the existing technology of using animal fresh bones, the fresh bones are first broken when producing osteoin by enzymatic hydrolysis; although they are not broken when producing gelatin, they are first decalcified with acid and then neutralized, but the acid-base method is very polluting to the environment. Large, and gelatin production can only use leg bones to produce high-quality gelatin, and miscellaneous bones cannot be used. No matter which method is used, there is no process of removing the blood water contained in the fresh bone first, because the blood water mixed in the material turns brown and black and solidifies when heated, and cannot be separated, resulting in products produced by these processes dark in ...

AI Technical Summary

Problems solved by technology

[0002] In the existing technology of using animal fresh bones, the fresh bones are first broken when producing osteoin by enzymatic hydrolysis; although they are not broken when producing gelatin, they are first decalcified with acid and then neutralized, but the acid-base method is very polluting to the environment. Large, and gelatin production can only use leg bones to produce good quality gelatin, miscellaneous bones can not be used

No matter which method is used, the blood water contained in the fresh bone is not removed first, because the blood water mixed with the material turns brown black and solidifies when heated, and cannot be separated, resulting in products produced by these processes dark in color and smell of blood