Camel milk powder follows the vacuum freeze-drying route, which can be summarized as follows: fresh camel milk pretreatment → low-temperature sterilization/homogenization → vacuum concentration → pre freezing on a tray → sublimation drying → analytical drying → low-temperature crushing → nitrogen filling/vacuum packaging.

Overview of vacuum freeze-drying of camel milk powder:
Camel milk powder follows the vacuum freeze-drying route, which can be summarized as follows: fresh camel milk pretreatment → low-temperature sterilization/homogenization → vacuum concentration → pre freezing on a tray → sublimation drying → analytical drying → low-temperature crushing → nitrogen filling/vacuum packaging.
Production process of vacuum freeze-drying camel milk powder:
Raw material pretreatment fresh camel milk filtration, milk purification, standardization, and homogenization fresh milk need rapid cooling and cold chain transportation to reduce the loss of microorganisms and active ingredients. Low temperature pasteurization or low temperature sterilization are common 72-75 ℃/15s, to avoid high temperature damage to lactoferrin, immunoglobulin, and other heat sensitive ingredients. Vacuum concentration and low temperature vacuum concentration are avoided. Increasing the concentration temperature of solids is usually not more than 50 ℃, which can reduce the subsequent freeze-drying load. Pan and pre freeze camel lotion. Quick freezing below -40 ℃ must be thoroughly frozen to form stable ice crystals, prevent later collapse, sublimation, dry, and slow temperature rise under vacuum environment, so that the vacuum degree of ice crystal sublimation is more controlled at 10-30Pa, The temperature of the material should be lower than the eutectic point/disintegration point, and the decomposition drying should continue to heat up to remove bound water. The shelf temperature is generally 25-40 ℃, and the final moisture content should be controlled at 1% -5%. The freeze-dried block for crushing, packaging, and low-temperature crushing, screening, and sealing should be done in a low humidity and clean environment. It is recommended to fill nitrogen or vacuum seal to prevent moisture absorption and oxidation
Key control points for vacuum freeze-drying of camel milk powder:
Camel milk pre freezing must be thorough. Camel milk contains high sugar and protein content, and the pre freezing temperature is usually below the eutectic point, usually below -40 ℃, while ensuring sufficient insulation time to completely freeze the material center. The sublimation stage cannot be overheated. If the material temperature exceeds the disintegration point or eutectic point, the freeze-dried structure will collapse, become sticky, and the rehydration property will deteriorate. The vacuum degree is generally controlled at 10-30Pa, and the heating should be slow and staged. Crushing and packaging should be done with low humidity and oxygen barrier freeze-dried camel milk powder, which has a porous and loose structure and is highly hygroscopic. Crushing, screening, and packaging should be completed in a low humidity and clean environment. It is recommended to use aluminum foil bags/high barrier bags+nitrogen filled or vacuum sealed for packaging.