Preparation method of anti-fog anti-softening packaging material for fried potatoes
A technology for flexible packaging and french fries, which is applied in the field of preparation of anti-fog and anti-soft packaging materials for fried french fries, can solve the problems of reduced haze of packaging films and softening of french fries, etc., so as to inhibit oxygen permeation, prolong shelf life, and improve surface energy effect
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example 1
[0025] Take 3g of sodium dodecylbenzene sulfonate, add it to 9g of polyethylene wax emulsion, stir at 300r / min for 15min, then add 0.75g of alkylphenol polyoxyethylene ether, 2g of polyglycerin fatty acid ester, continue stirring for 20min, then use Add 1g of polyethylene glycol glycerol dropwise at 0.1g / min, and stir at 500r / min for 15min after the dropwise addition to obtain an anti-fogging agent. Take 2g of chitosan, add 100g of mass fraction to 2% acetic acid solution, and stir at 300r / min / min and stir until chitosan is completely dissolved, then add 0.10g horseradish peroxidase, 3g hesperidin, stir and react at 40°C for 30min, after cooling to room temperature, adjust the pH to Neutral, after standing for 1 hour, filter the filter residue, wash the filter residue twice with deionized water, place it in a drying oven, and dry it at 105°C to constant weight, then transfer the filter residue to a mortar and grind it, pass through a 200-mesh sieve, To obtain hesperidin-graft...
example 2
[0027] Take 4g of sodium dodecylbenzenesulfonate, add it to 12g of polyethylene wax emulsion, stir at 300-400r / min for 18min, then add 1.2g of alkylphenol polyoxyethylene ether, 2g of polyglycerol fatty acid ester, and continue stirring for 20 After ~30min, add 2g of polyethylene glycol glycerol dropwise at 0.1g / min, and stir at 550r / min for 18min after the dropwise addition, to obtain an anti-fogging agent. Take 2g of chitosan and add 110g of 2% acetic acid solution , stirred at 350r / min until the chitosan was completely dissolved, then added 0.11g horseradish peroxidase, 3.5g hesperidin, stirred and reacted at 45°C for 40min, cooled to room temperature and oxidized with a mass fraction of 5% The sodium solution adjusted the pH to neutral, and filtered the filter residue after standing for 1 h. The filter residue was washed twice with deionized water, placed in a drying oven, and dried to constant weight at 108 ° C. Then, the filter residue was transferred to a mortar for grin...
example 3
[0029]Take 6g of sodium dodecylbenzene sulfonate, add it to 18g of polyethylene wax emulsion, stir at 400r / min for 20min, then add 1.50g of alkylphenol polyoxyethylene ether, 3g of polyglycerin fatty acid ester, continue stirring for 30min, then use Add 3g of polyethylene glycol glycerol dropwise at 0.2g / min, and stir at 600r / min for 20min after the dropwise addition to obtain an anti-fogging agent. Take 3g of chitosan, add 120g of mass fraction to 2% acetic acid solution, and stir at 400r / min / min and stir until chitosan is completely dissolved, then add 0.12g horseradish peroxidase, 4g hesperidin, stir and react at 50°C for 50min, after cooling to room temperature, adjust the pH to Neutral, after standing for 2 hours, filter the filter residue, wash the filter residue 3 times with deionized water, put it in a drying oven, dry it at 110°C to constant weight, then transfer the filter residue to a mortar and grind it, pass through a 200-mesh sieve, To obtain hesperidin grafted ...
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