Asparagus tuber vacuum freeze-drying processing method
A technology of vacuum freeze-drying and processing method, applied in the direction of drying solid materials, drying solid materials without heating, drying, etc., can solve the problems of mildew, poor quality, easy saccharification, etc. The effect of low moisture content
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[0016] Harvest 100kg of asparagus, remove debris and moldy parts of pests, select roots with a diameter of more than 1.3cm, and cut off the fibrous roots at both ends of each root from the bottom; then wash with running water, put all the roots of asparagus in water, and put them up and down. Shake and rinse repeatedly until the soil on the tubers is completely removed, and then grade them according to the diameter of 1.3-1.5cm, 1.5-1.8cm, and 1.8cm or more.
[0017] Boil clean water, then pour the washed asparagus roots into a boiling water pot and cook for 15 minutes on medium heat, until the skin is cracked and the heart is penetrated; then peel off the outer skin while it is hot, and remove it by hand Tear off one end of the root tuber to the other end, peel off completely, and then use 1% CaCl 2 Soak in solution for 15 minutes. Put the soaked asparagus into a vacuum freezer. The initial temperature in the freezer is 0°C~-5°C, and then it will drop to -25°C~-30°C within 1...
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