Edible extracted konjaku flour composite food package film and preparation method thereof
A technology of food packaging film and konjac powder, which is applied in food preparation, packaging, wrapping paper, etc., can solve the problems of unsuitable automatic mechanical operation, waste environmental pollution, low strength, etc., and achieve low investment in production equipment, high transparency, high intensity effect
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Embodiment 1
[0016] Embodiment 1: edible konjac fine powder composite food packaging film, its basic composition is: 5% konjac fine powder, 89.5% sodium alginate, 0.5% glycerin or ethylene glycol, 5% calcium chloride or citric acid calcium.
Embodiment 2
[0017] Embodiment 2: edible konjac fine powder composite food packaging film, its basic composition is: 50% konjac fine powder, 44.5% sodium alginate, 2.5% glycerol, 2.5% ethylene glycol, 0.5% calcium chloride or calcium citrate.
Embodiment 3
[0018] Embodiment 3: edible konjac fine powder composite food packaging film, its basic composition is: 80% konjac fine powder, 10% sodium alginate, 5% glycerin or ethylene glycol, 5% calcium chloride or citric acid calcium.
[0019] The above sodium alginate can be replaced by potassium alginate, calcium alginate or magnesium alginate.
[0020] The preparation method of the above-mentioned food packaging film is to mix konjac powder and alginate and add water to fully stir and knead at 40-50°C, then add plasticizer and continue stirring until a film glue without lumps is formed; use 160-200 The glue liquid is filtered by nylon filter cloth; the glue liquid is sprayed on the steel belt by pressure casting, and then sent into the water tank filled with curing agent for cross-linking and curing; the cured film is sent into a tank containing 45-80 % dehydrating agent ethanol solution in a water tank for dehydration and desalination; finally, heat and dry at 50-80°C, and roll the...
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