Preparation method of edible food packaging film
A technology for food packaging film and preparation steps, which is applied in the field of preparation of edible food packaging film, can solve the problems of high brittleness, poor gas barrier and antibacterial properties, and achieve the effect of low cost and simple preparation steps
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example 1
[0016] First collect 400g of mature tung seeds and expose them to the sun until the tung seeds crack. After manually removing the shell, collect the tung seeds and wash them with deionized water for 3 times, then place the washed tung seeds in a ventilated place Naturally air-dry for 3 hours, put the dried tung seeds in a pulverizer for crushing, and pass through a 60-mesh sieve, collect the sifted material, and place it in a filter paper bag, then put the filter paper bag into a Soxhlet extractor, and then Add 1L of absolute ethanol and extract at 70°C for 3 hours. After the extraction is complete, collect the extract and distill it under reduced pressure to 1 / 10 of the original volume to obtain a concentrated tung oil solution for later use; weigh 100g of pigskin and wash it with deionized water After cleaning, put it in a meat grinder and grind it for 5 minutes to get minced pork skin, put it in a beaker, then add 500mL of 10% sodium chloride solution, stir for 2 hours, put ...
example 2
[0019] First collect 450g of mature tung seeds, and expose them to the sun until the tung seeds crack. After manually removing the shell, collect the tung seeds, wash them with deionized water for 4 times, and place the washed tung seeds in a ventilated place Naturally air-dry for 3 hours, put the dried tung seeds in a pulverizer for crushing, and pass through a 70-mesh sieve, collect the sifted material, and place it in a filter paper bag, then put the filter paper bag into a Soxhlet extractor, and then Add 1L of absolute ethanol and extract at 75°C for 3 hours. After the extraction is complete, collect the extract and distill it under reduced pressure to 1 / 10 of the original volume to obtain a concentrated tung oil solution for later use; weigh 150g of pigskin and wash it with deionized water After cleaning, put it in a meat grinder and grind it for 8 minutes to get minced pork skin and put it in a beaker, then add 550mL of sodium chloride solution with a mass fraction of 10%...
example 3
[0022]First collect 500g of mature tung seeds, and expose them to the sun until the tung seeds crack. After manually removing the shell, collect the tung seeds, wash them with deionized water for 5 times, and place the washed tung seeds in a ventilated place. Naturally air-dry for 4 hours, put the dried tung seeds into a pulverizer for crushing, and pass through an 80-mesh sieve, collect the sifted material, and place it in a filter paper bag, then put the filter paper bag into a Soxhlet extractor, and then Add 2L of absolute ethanol and extract at 80°C for 4 hours. After the extraction is complete, collect the extract and distill it under reduced pressure to 1 / 10 of the original volume to obtain a concentrated tung oil solution for later use; weigh 200g of pigskin and wash it with deionized water After cleaning, put it in a meat grinder and grind it for 10 minutes to get minced pork skin and put it in a beaker, then add 600mL of 10% sodium chloride solution by mass fraction, s...
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