Method for manufacturing fried food packaging film
A technology for fried food and packaging film, applied in packaging, wrapping paper, biological packaging, etc., can solve the problems of packaging pollution, strength reduction, oil exposure, etc., to achieve good oil resistance and avoid oil pollution.
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[0016] Example 1
[0017] A manufacturing method of fried food packaging film includes the following steps:
[0018] 1) Take a certain amount of water-soluble chitosan, dissolve it with distilled water, and configure it into a chitosan solution with a concentration of 2%;
[0019] 2) Mix raw potato starch and cross-linked esterified starch in a weight ratio of 3:1, then dissolve them in distilled water to prepare a starch solution with a concentration of 20%, and gelatinize at 75°C for half an hour;
[0020] 3) After the starch solution is completely gelatinized, quickly cool to 45°C, add isoamylase according to 50u isoamylase / g starch, and stir at constant temperature for 3 hours;
[0021] 4) Mix the chitosan solution and starch solution in a weight ratio of 1:10, and stir for 30 minutes at a speed of 550r / min;
[0022] 5) Heat the stirred mixed solution to 60°C, add polyethylene glycol accounting for 3% of the weight of the mixed solution, and continue stirring for 20 minutes;
[0023] ...
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