The vacuum freeze-drying machine in edible fungus needle mushroom freeze-dried food production process: needle mushroom raw materials selection & rarr;
Pretreatment & rarr;
Frozen & rarr;
Freeze drying & rarr;
Product evaluation & rarr;
Packaging and storage.
freeze-dried edible fungus needle mushroom production equipment: recommended FZG series food lyophilizer
production process points:
1, needle mushroom raw materials selection,
choose no diseases and pests, no impurities, stipe base cutting clean fresh fruit body, and ask the mushroom shape integrity, cap is white or yellowish-white, should not be more than 1 cm diameter, shape is hemispherical, stalk length appropriate for (
13 to 16)
cm。
2, pretreatment
wash raw material & rarr;
Color processing & rarr;
Water washing to sour, not sticky & rarr;
Hardening treatment & rarr;
Wash & rarr;
Drain water surface.
color processing: 0.
1% citric acid and 0.
05% ascorbic acid solution boil (
1 ~ 2)
min。
hardening treatment: 0.
5% calcium chloride solution immersion (
1 ~ 2)
h。
3, freeze drying,
remove the frozen good material to freeze drying machine, start the vacuum system make dry indoor vacuum degree of 65 pa, temperature of cold trap for -
Temperature was 50 ℃, material
25 ℃, dry,
20 ~ 30)
h。
100 square lyophilizer
