Spike Health New Invention Patent
Release time:
2020-08-14
Spike Health Added Invention Patent
News Recently, Spike Health Technology Company's independent innovation of "a method of rapid freeze-drying active Dendrobium officinale" successfully passed the examination of the State Intellectual Property Office and obtained the invention patent authorization.
"a method for rapid freeze-drying of active Dendrobium officinale" adopts the pressure stage reduction technology to achieve the balance of the influence of the pressure of the drying chamber on the heat and mass transfer in the vacuum freeze-drying process, better realize the heat and mass transfer process, enable the water vapor escaping from the material to be trapped by the cold trap in time, greatly shorten the required freeze-drying time, and thus achieve the purpose of rapid freeze-drying.
The dendrobium made by this method can retain the nutrition, taste, fragrance and color of the fresh product to the maximum extent, and the finished product after freeze-drying is loose and porous sponge-like, and the water rehydration speed is fast after adding water, and the original character is almost immediately restored, and its quality is basically the same as that of the fresh product. Before freeze-drying, it is necessary to freeze in advance to freeze the internal water into ice crystals and form a stable solid frame structure. In the whole sublimation drying process, the material temperature is controlled below the eutectic point, but the difference is not too much, generally lower than the eutectic point 3~5 ℃, so as to save energy consumption and shorten the freeze-drying time to the greatest extent on the premise of ensuring product quality, avoid problems and defects such as deformation, drying shrinkage, surface bulging, white color, insufficient crisp and delicious taste, loss of active ingredients caused by rapid heating. Drying at low temperature and low pressure also avoids the loss or inactivation of heat-sensitive substances and volatile components. At the same time, low pressure is anoxic and easily oxidized components do not cause oxidative deterioration.
This method has a high freeze-drying rate, saves freeze-drying time, reduces freeze-drying energy consumption, and the product has a straight appearance, no damage to the color, and a crisp and delicious taste. (Lu Guosheng)
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