Gelatin is partially degraded by collagen in connective tissues such as animal skin, bone, sarcolemma, and muscle charm to become white or pale yellow, translucent, slightly shiny flakes or powders; it is a colorless and odorless, Non-volatile, transparent and hard non-crystalline substance, soluble in hot water and insoluble in cold water, but can slowly absorb water to expand and soften. Gelatin can absorb water equivalent to 5-10 times its weight. The melting point is between 24-28 ° C However, the difference between its solubility and freezing temperature is small, and it is susceptible to deterioration due to the influence of moisture, temperature and humidity. Gelatin contains 18 amino acids needed by the human body such as lactine, glycine, proline and hydroxyproline.
Collagen is an important component in mammal bones and fur. Gelatin is derived from the hydrolysis of collagen. The main production methods of gelatin include acid method and lime method. Gelatin has a wide range of applications in the industry, including photography, medicine and food. Gelatin is an organic gelatinous substance that swells in cold water and dissolves into a viscous solution in hot water.
Production method and process of gelatin:
1. The acid method is to place the bones and fur in a dilute acid solution, and then wash them with cold water to reduce the pH value to 4 to obtain gelatin.
2. The lime method is to put the collagen into the pool with mud. The mud is periodically renewed. It is renewed about every 90 days. The final raw materials are cleaned to remove lime and impurities. The next step is to use a gelatin on-line concentration meter to control the concentration to obtain different quality gelatin. In this process, the gelatin solution with a concentration of about 5% is filtered, deionized by an ion exchanger, and concentrated by a multifunctional vacuum evaporator. A 15% solution can be obtained, filtered through a cellulose filter layer, and continued to be evaporated. To 30-40% concentration. It is then sterilized, cooled and squeezed and dried in a desiccator.
Bo Ruisi gelatin solid content online refractometer uses the principle of refraction to automatically detect the gelatin solution content. It is installed on the production pipeline or tank container for 24 hours of continuous monitoring, real-time measurement and analysis, and outputs signals to the monitor / controller to cooperate with the control system to achieve effective control of the gelatin content in the pipeline. The detection is not affected by the color, turbidity, viscosity, bubbles, solid particles and other impurities of the gelatin solution, and it has a high-precision automatic temperature compensation function. It adopts a fully shielded anti-interference design, and the photoelectric signal is directly converted. The measurement accuracy is ± 0.1%. The data is refreshed every 5 seconds to ensure that every data change is not missed. The entire measurement and output unit is integrated, which can directly display the percentage concentration or user-defined unit on the spot, and can transmit the analog signal 4-20mA or RS485 communication signal to the recorder or central control room for real-time data storage, printing, traceability and other functions; Structure Compact, easy to install on site, simple and convenient operation, less maintenance, reliable work, high cost performance. The sensor is fully shielded and anti-interference, and the factory linear calibration. The design of the full-cast glass fiber reinforced plastic shell and the completely shielded steel plate inner wall, no consumables, no maintenance, no drift, can greatly reduce the workload of the operator.