[View comments][Expert Q&A][Add to Favorites][Recommended to friends][Publication] Bone Powder Production Method
Bone powder is a valuable source of calcium and phosphorus, often used in animal feed and agricultural applications. There are two common methods for producing bone powder: the boiling method and the steaming method. Both techniques aim to process bones into a fine powder that can be easily utilized.
First, Boiled Bone Method
1. Breaking: Collect and dry the bones from livestock and poultry. These bones are then broken into small pieces during processing. This step helps in increasing the surface area for better boiling and grinding later on.
2. Boiling: The broken bones are placed in a pot with enough water to cover them. It's best to boil them overnight. During the process, you should remove the oil that floats on the surface of the water. After boiling, the bones are taken out and allowed to cool before proceeding to the next stage.
3. Drying and Grinding: Once the bones are degreased, they are dried thoroughly and then ground into a fine powder using a hammer mill or steel mill. While this method effectively kills most pathogens, the resulting bone powder tends to be harder, which may slightly reduce its digestibility compared to steam-processed bone meal.
Second, Steamed Bone Method
In this method, the bones are first broken into short pieces. They are then placed into a pressure cooker, covered with water, and sealed tightly. The cooker is heated until the temperature reaches 120°C, and then it is left to cook for 24 hours. After turning off the heat, the pot is left overnight. The next day, the fat layer on top is carefully removed to prevent contamination. Finally, the bones are dried and ground in the same way as the boiled bone method.
Both methods have their advantages. The boiling method is simpler but results in a harder powder, while the steaming method produces a more digestible product. Depending on the intended use, either technique can be chosen based on quality and efficiency requirements.
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